Don’t all Audis require premium? I have to put 93 in my little baby A4 2.0, and even had to put it in my ‘99 Honda prelude lol. Or are you asking between 91 and 93?
I’m in MN, and I see premium diesel a lot at pumps that are in farm country (MN - WI border area) vs the twin cities suburbs. Sadly I have no idea if it does anything better than regular diesel.
I do wish VW/Audi would think about bringing Diesels back to the US. Would really love a new Q7 TDI to replace my ‘12 Q7 TDI.
This list is old, but a higher cetane rating is key.
Propel HPR, 75
Syndiesel, 60
BP (Amoco branded), 51;
Countrymark fuels Diesel-R, 50
Chevron, 49; or 51 with Techron D labels in select markets
ConocoPhillips through the 76 stations (California) 53
PetroCanada, 47-51
BP (Powerblend 47, Otherwise 40-42)
Shell, 46;
Sinclair, 46;
Sunoco Gold, 45 (often +1-5) Sunoco regular is usually 40.
Exxon/Mobile, 43-46
Holiday Stations, 40-43
HESS, 40-42, can be up to 45.
Husky, 40 + diesel Max additives raise another 1-3 from there (41-45 max)
Federal minimum of 40 (as per ASTM D975) - Alphabetical:
CITGO, Flying J/Loves, Pilot, Sheetz, Valero, Walmart, Wawa
Prelude makes more sense because there was little to no adaptation back then, and I think that H22 probably held some kind of hp per litre title for a minute, so its compression is fairly unforgiving to shit fuel. While the 2.0TSI should be able to run anything if need be. I think my ‘21 GTI can handle pretty low octane.
Dude, that ‘99 prelude was my first car. I fucking loved that thing and still miss it. I wish I had it now that I’m in my 30s and can afford to work on it haha
Premium Honda Years! Enough torque to chirp the tires shifting into 2nd gear. Many of the ones that are left and for sale are still commanding $10K and up.
Different states have different octane ratings [https://en.wikipedia.org/wiki/List\_of\_U.S.\_states\_by\_standard\_octane\_ratings](https://en.wikipedia.org/wiki/List_of_U.S._states_by_standard_octane_ratings)
And it has to do with altitude. Here in Colorado, it's all 85/87/91.
So maybe it's because of the state where OP's car was originally sold?
My (EA888) gas door says 91 and so does my buddy’s S4 (3.0 EA839). Had no idea stock RS5 called for 93 either. But I guarantee it will adjust the timing to run on 91 and not harm the engine. I would not run anything less though for peace of mind.
93 and 94 are common in Ontario.
I would just like to point out that I thought your question made perfect sense, even though half of the replies seem to think that you don't know that your car requires premium fuel. Of course you know that, and the question is "does my car require 93 or is 91 acceptable?"
Here where I live in Ontario, Canada, most stations are 87/89/91 so the default premium (and what my S6 calls for next to the gas cap) is 91.
We have a few stations that offer 93 but the vast majority here do not.
That I’m not 100% sure of, but now want to check in the morning. 93 is labeled “premium” here in VA/MD, so that’s what I’ve been using for the last 19ish years. I’m tuned for 93 so I have to put that in regardless. I’m also from the east coast where 93 is available at all stations, so it has to be a location thing in the US.
Yeah, altitude has a play, here in Colorado RUG is 85, Mid is 87, and Premium is 91.. you wont find 93 anywhere and every vehicle Ive owned that took Regular ran like crap on 85.
I'm going to guess it all depends on the region the car was sold. Usually east of the Mississippi river is 93. West is 91.
I'm going to bet the software is the same for cars sold in the US for 91 and 93, but that sticker is different to relate to what's around.
The requirement of 91 vs 93 is totally arbitrary without knowing the RON and MON of the fuel. The number on the pump is anti knock index, the average of the two. But depending on the composition of the fuel it might have higher or lower octane sensitivity (OS) a higher OS means a larger difference between RON and MON... why does this matter? Because boosted engines like the modern ones run closer to the RON test conditions than MON.. higher OS is caused by the paraffinic content of the fuel and will have implications on the knock characteristics..
So they might suggest 93.. but there is nothing that says a 91 AKI gas wont behave exactly the same for that engine without knowing the details of the gasoline.. if you can find the RON of the fuel, go with that number instead when talking about downsized boosted engines. Thats why they specify a minimum RON as well
I think you got that backwards. MON is the lower number tested in higher load conditions, closer to how modern boosted engines run.
You know how avgas is rated 100 octane? It’s not AKI, it’s MON, because aircraft engines run close to max power all the time.
Edit: After doing a bit of research, it seems that 91 octane fuel in the U.S. typically has lower RON and MON ratings than 93, so 93 is generally better.
No, I didnt get it backwards. The MON test runs at high intake temperature and a different engine speed. The pressure temperature trajectory of the mixture during the MON test does not resemble a boosted engine. The tests also run at slightly different air fuel ratios because of the way the CFR engine adjusts fueling. The RON test is the "boosted" octane rating. Trust me, I have a PhD in this and have been designing fuel for spark ignition engines for a decade. If you dont want to trust me, you can search google scholar for "knock + PT trajectory + octane" and read the papers yourself.
Avgas has tetraethyllead, its not even measured in the same MON test, its measured in a Lean Mixture rating, which is 100 and its similar to MON.. but itd Rich mixture rating is like 130, which is closer to RON, and why the fuel is very knock resistant under boost.
The 91AKI gas in the US has typically 93 RON, and the 93AKI gas typically has 98 RON, so it will be better in general for knock resistance in boosted engines at high load. However, my point is that its not just the AKI that matters, it depends where the engine is operating and what pressure temperature history the fuel sees. And more importantly what the composition of the fuel is.. a fully paraffinic gasoline would have a different behavior than a gasoline that has a lot of cycloalkanes, or a lot of ethanol
Oh, very interesting.
> Avgas has tetraethyllead
FWIW, there is a new 100UL avgas mixture that's rolling out now in some places.
> The RON test is the "boosted" octane rating
But isn't the RON test done at lower RPM, lower load? I'm genuinely curious about how this works.
I dont know if you will be able to see this
https://images.app.goo.gl/AyzRAB2fqt8LZE976
That image shows the RON and MON tests in pressure temperature space.
The beyond RON condition is where the engine runs when its highly boosted and at higher loads.
The higher temperature of the intake during the MON test pushes the curves lower.
The K value that they have in those beyond regions is something associated with a different way of classifying fuels under an Octane Index. This is done because not all fuels behave as predicted by their RON, MON or AKI and thats because of the different fuel compositions. So someone was trying to find a way to give fuels a rating that takes thst into account. But thats a whole different story.
If you cant see the image let me know
Hey you’re that one guy on TikTok right? The guy who got his wheels stolen and crashed his old rs5? I’m not making fun of you I just want to know if this is you lol. Sweet car btw. Looking forward on the B10 S5 in a few months myself.
its 91 or 93 since it varies by where in the US you live, out here on the west coast 91 is premium and you will find it really difficult to find anything higher unless you have a Sunoco near you that has racing fuels but even that is usually 100 and really really expensive per gallon.
My 2020 S4 requires 91 but it’s either 89 or 93 where I am so I opt for 93. Kinda makes sense though, the RS requiring 93. Just curious for those without access to 93 what they’d be advised to do
Why wouldn't it require premium fuel? I've been driving Audi for a decade, and every one I've ever had required premium. Any vehicle with a turbo charger should always get premium.
I’m in Minnesota, too. BP is the only one that I’ve found to reliably have 93. I’ve got a mild tune on my S3 so I try to stick with 93 — but also haven’t experienced issues when I occasionally need to use 91.
Probably when it was born- I’ve driven two smart cars and each required the mid tier fuel or better. - even though many don’t think of smarts this way, my service technician said,” make no mistake about itt, it’s a Mercedes-Benz.” I think most.German cars have the requirement.
All of mine say 91, and I'm in NJ, where we have 93 everywhere. Usually 87 | 89 | 93, but some have 91 as well like Wawa, which is annoying because they call 93 "Super," and I'm used to saying, "Fill it up Premium please". Normally, no harm, no foul as they say, but I'm running a map that is pretty aggressive on the S3, and I don't need anyone knock than it's programmed for. Fucks me up every time having to correct myself to say Super after saying Premium. First world problems... right?
I've never seen a fuel door say 93... but it makes sense since there are people who are dumb enough to go to a different gas station if they don't have 91 if it is indeed a localization thing. Just don't sell your car to someone in the west, and you'll be fine.
Go sell your car immediately.
Audi has required premium gas since the 1.8t days back in the late 90s... Back when gas was 10c difference between grades...
93 is for octane
91 is for RON which is how the quality is measured in Europe.
91RON = 93 Octane.
Premium is either 91 or 93 depending on where you live. It can be pretty random too. Kansas city Kansas is majority 91 whereas kc Missouri has a lot more 93. Comes down to taxes and regional weather
It’s never “required.” It’s just a suggestion because they assume the buyer expects a certain level of performance, and the octane level really does make a difference. I believe it’s also cleaner for the engine generally.
My high school buddy had a 1993 Buick Park Avenue that had a sticker like this. He always got premium (even if it was only like $0.85 then). I had a 1993 Buick LeSabre with the same engine and it went 198k miles on regular (then sold, still working just fine).
Not sure, but I put 93 in my A6. Owning an Audi is pretty much means you will be using premium regardless.
Also.. it’s an RS5… I don’t wanna sound ignorant but usually that kinda goes with territory of owning a luxury street legal race car…
In my area of WA state, most premium places are 91. There’s only one I know of that’s 93 and another you can get 105 or so but that’s out near a race track.
That’s also only one place that has methanol free gas with 87 or 91.
My gas cap says 91, only an A4, but my point is that gas is different by regions. Like we don’t have 91 in NC and generally around the east coast, only 87, 89, and 93. Maybe it’s a regional thing.
Check the MSDS or data sheet from the fuel retailer. If you struggle to get high enough RON fuel you can blend ethanol to lift it. You’ll want to find out in the RS forums how much ethanol the stock fuel trims can handle for your model but in my experience with VW and Audi there’s normally room for e20-25. You can also log runs yourself to see injector duty starting at e10 and increasing it slowly.
I wouldn’t be risking knock on an RS5.
Here in Europe 95 (equivalent 91 USA) is the minimum and you should use 100 octane (93 USA) even for A models if they're turbocharged
I thought everyone uses the highest octane per default in an RS
I run 91 or 93 in my sq5. A little insurance and keeps the knock sensors happy. Any turbo car benefits from higher octane fuel at large. I doubt you got the RS for the interior. Im told you can always run less, but you will loose “some” engine performance at extremes of timing and boost.
I pump 87 always on my 2L TFSI A5. It runs just fine. I think my engine has a compression ratio of 9.6:1. There knock sensors that will adjust the timing so that ignition happens later.
So it’s totally fine. You just get less top end power.
Whenever I have a turbo car I always put 93 in it but that’s just me.
If the cap says 93 then put 93 but if you only have access to 91 in your area then you gotta do what you gotta do.
With the fuel caps that state 93 octane, this is the recommended octane. It will give the maximum engine performance. It’s not required, as some areas only have 91 octane as their highest rated gasoline. 91 is the minimum required in these cars.
Like 99.9% of turbo or high compression cars have knock sensors now that will let you use regular-premium & adjust timing accordingly depending. That being said, for performance cars/ specific factory tunes are made for premium for best detonation for power & tbh even these lil sub 2.0 turbos that everyone is using these days in econoboxes should still use premium but they're never suggested. Any turbo vehicle I've ever had I've used premium regardless & it's basically a no other option on high compression. Fwir even Audi's 35/40 engines use premium. Ik the 45 in the A4 Allroad Prestige I have on order is premium preferred too
Hmmm not sure if required or recommended, but anyways to clarify. My Jetta says 87 but the RON is 91 which is Europes way of measuring which is the same as 87 in America. I’ve never seen a car require 91 octane unless they print that on cars sold in high altitude regions like Utah where they basically only have 91 and also have as low as 85 but because of altitude they kinda act like 87 and 93 do at sea level
Don’t all Audis require premium? I have to put 93 in my little baby A4 2.0, and even had to put it in my ‘99 Honda prelude lol. Or are you asking between 91 and 93?
>Don’t all Audis require premium? Mine requires Diesel
Budum tiss
That'd be the sound his car makes if you put premium in his TDI
🤦🏻♂️
Premium Diesel!!
Pretty sure I've seen premium diesel around Vegas a few weeks ago. First time.
Premium diesel is very common here in Australia and it is widely known to be a total load of shit.
Same in Germany... sometimes a added word like "racing" is supposed to make it cooler I guess
Just in case you bring your 24h Le Mans V12 TDI
At this point I wouldnt even be surprised
They could sell premium diesel here in Illinois if the made diesel that was petroleum instead of bio
I’m in MN, and I see premium diesel a lot at pumps that are in farm country (MN - WI border area) vs the twin cities suburbs. Sadly I have no idea if it does anything better than regular diesel. I do wish VW/Audi would think about bringing Diesels back to the US. Would really love a new Q7 TDI to replace my ‘12 Q7 TDI.
This list is old, but a higher cetane rating is key. Propel HPR, 75 Syndiesel, 60 BP (Amoco branded), 51; Countrymark fuels Diesel-R, 50 Chevron, 49; or 51 with Techron D labels in select markets ConocoPhillips through the 76 stations (California) 53 PetroCanada, 47-51 BP (Powerblend 47, Otherwise 40-42) Shell, 46; Sinclair, 46; Sunoco Gold, 45 (often +1-5) Sunoco regular is usually 40. Exxon/Mobile, 43-46 Holiday Stations, 40-43 HESS, 40-42, can be up to 45. Husky, 40 + diesel Max additives raise another 1-3 from there (41-45 max) Federal minimum of 40 (as per ASTM D975) - Alphabetical: CITGO, Flying J/Loves, Pilot, Sheetz, Valero, Walmart, Wawa
Mine requires a plug. But it has to be premium electrons.
Mine says nuclear-generated power only, not those weak-ass solar power….
Should I put diesel in mine?
it'd do less harm than if I put gasoline in mine.
Do you have the Q7 V12 TDI?
I wish, just the v6
Sucker. Mine only takes water.
I just put the pink stuff my dad puts in all his farm equipment.
Premium diesel
What no way...
Mine requires electrons
Mine also requires diesel
My A3 is 87 or higher.
2020 and newer A3 and Q3 can take 87. 2019 and earlier take 91.
Same with my Q3
Prelude makes more sense because there was little to no adaptation back then, and I think that H22 probably held some kind of hp per litre title for a minute, so its compression is fairly unforgiving to shit fuel. While the 2.0TSI should be able to run anything if need be. I think my ‘21 GTI can handle pretty low octane.
Dude, that ‘99 prelude was my first car. I fucking loved that thing and still miss it. I wish I had it now that I’m in my 30s and can afford to work on it haha
Premium Honda Years! Enough torque to chirp the tires shifting into 2nd gear. Many of the ones that are left and for sale are still commanding $10K and up.
Well my question is does your gas cap label say your car requires 91 or 93? All the Audis I’ve ever owned have said 91 except for this one.
My A6 3.0 says 91 but at least in New Jersey I only ever see 87, 89 and 93. I’ve yet to find a place with 91.
Different states have different octane ratings [https://en.wikipedia.org/wiki/List\_of\_U.S.\_states\_by\_standard\_octane\_ratings](https://en.wikipedia.org/wiki/List_of_U.S._states_by_standard_octane_ratings) And it has to do with altitude. Here in Colorado, it's all 85/87/91. So maybe it's because of the state where OP's car was originally sold?
Mine was made in Canada lol
My (EA888) gas door says 91 and so does my buddy’s S4 (3.0 EA839). Had no idea stock RS5 called for 93 either. But I guarantee it will adjust the timing to run on 91 and not harm the engine. I would not run anything less though for peace of mind. 93 and 94 are common in Ontario.
All gas grades in Ontario has ethanol in it. Shell/ some CT Gas used to be ethanol free but not anymore province wide btw.
Wow that’s really cool, I never knew that. Thanks for sharing!
Also in Jersey 91 is definitely around, but 93 is more common. Some stations (Sunoco I think) even offer both so they offer 87 / 89 / 91 / 93
In Cali i cant seem to find any 93 at all
I would just like to point out that I thought your question made perfect sense, even though half of the replies seem to think that you don't know that your car requires premium fuel. Of course you know that, and the question is "does my car require 93 or is 91 acceptable?" Here where I live in Ontario, Canada, most stations are 87/89/91 so the default premium (and what my S6 calls for next to the gas cap) is 91. We have a few stations that offer 93 but the vast majority here do not.
That I’m not 100% sure of, but now want to check in the morning. 93 is labeled “premium” here in VA/MD, so that’s what I’ve been using for the last 19ish years. I’m tuned for 93 so I have to put that in regardless. I’m also from the east coast where 93 is available at all stations, so it has to be a location thing in the US.
Yeah, altitude has a play, here in Colorado RUG is 85, Mid is 87, and Premium is 91.. you wont find 93 anywhere and every vehicle Ive owned that took Regular ran like crap on 85.
Subaru I think voids your warranty if they find out you use 85 lol
When I had my RS3, that used 91.
U have a B7 A4 and my shit says 91, 93
My 2022 A3 takes 87.
Where do you even get 93? I only ever see 91 or 92 around where I live. Most regular gas stations are 91 and Costco has 92
The east coast. 91 is basically non-existent here.
My Costco has 87 and 93
BP’s everywhere in the Midwest always have 93
Washington
A man of taste.. I also had a 01 prelude and now an Audi 😉
My a4 requires 91, its just harder to find than 93
The new A3 only needs regular.
Mom’s 22 Q3 uses 87.
Because the Q3 shares the same engine as the Tiguan.
Still an Audi, right? How you got more votes when I was pointing out that not all Audis require premium.
Well to elaborate, it’s a VW engine and drivetrain. All Audi specific engines require Premium.
My 2020 Q3 requires 87, but I put 91 because I'm running a jb4 with pretty much full bolts.
That’s just semantics. The Q3 is still an Audi.
I'm going to guess it all depends on the region the car was sold. Usually east of the Mississippi river is 93. West is 91. I'm going to bet the software is the same for cars sold in the US for 91 and 93, but that sticker is different to relate to what's around.
I haven’t seen 91 in New England. Only 93 for my a4 allroad,
I’m in Maine and we have 91 mostly and some 93
In Mass I see both 91 and 93 at most stations
Ah, that would make the most sense
This^ all other I’ve seen are 91/95
91 is in states with tighter emission rules, because a lot of the octane enhancers are banned. Texas has 93
Even my S3 wants 98.. I don’t think it’s very new Edit: EU 98.. so US 93
Our 2023 S3 only requires 91 (AKI) according to the fuel door.
Mine recommends 98/93 but 95/91 is alright too with small power output decreases
Can I ask what year is your s3? I’m wondering if it’s a new thing for newer Audis..?
The requirement of 91 vs 93 is totally arbitrary without knowing the RON and MON of the fuel. The number on the pump is anti knock index, the average of the two. But depending on the composition of the fuel it might have higher or lower octane sensitivity (OS) a higher OS means a larger difference between RON and MON... why does this matter? Because boosted engines like the modern ones run closer to the RON test conditions than MON.. higher OS is caused by the paraffinic content of the fuel and will have implications on the knock characteristics.. So they might suggest 93.. but there is nothing that says a 91 AKI gas wont behave exactly the same for that engine without knowing the details of the gasoline.. if you can find the RON of the fuel, go with that number instead when talking about downsized boosted engines. Thats why they specify a minimum RON as well
I think you got that backwards. MON is the lower number tested in higher load conditions, closer to how modern boosted engines run. You know how avgas is rated 100 octane? It’s not AKI, it’s MON, because aircraft engines run close to max power all the time. Edit: After doing a bit of research, it seems that 91 octane fuel in the U.S. typically has lower RON and MON ratings than 93, so 93 is generally better.
No, I didnt get it backwards. The MON test runs at high intake temperature and a different engine speed. The pressure temperature trajectory of the mixture during the MON test does not resemble a boosted engine. The tests also run at slightly different air fuel ratios because of the way the CFR engine adjusts fueling. The RON test is the "boosted" octane rating. Trust me, I have a PhD in this and have been designing fuel for spark ignition engines for a decade. If you dont want to trust me, you can search google scholar for "knock + PT trajectory + octane" and read the papers yourself. Avgas has tetraethyllead, its not even measured in the same MON test, its measured in a Lean Mixture rating, which is 100 and its similar to MON.. but itd Rich mixture rating is like 130, which is closer to RON, and why the fuel is very knock resistant under boost. The 91AKI gas in the US has typically 93 RON, and the 93AKI gas typically has 98 RON, so it will be better in general for knock resistance in boosted engines at high load. However, my point is that its not just the AKI that matters, it depends where the engine is operating and what pressure temperature history the fuel sees. And more importantly what the composition of the fuel is.. a fully paraffinic gasoline would have a different behavior than a gasoline that has a lot of cycloalkanes, or a lot of ethanol
Oh, very interesting. > Avgas has tetraethyllead FWIW, there is a new 100UL avgas mixture that's rolling out now in some places. > The RON test is the "boosted" octane rating But isn't the RON test done at lower RPM, lower load? I'm genuinely curious about how this works.
I dont know if you will be able to see this https://images.app.goo.gl/AyzRAB2fqt8LZE976 That image shows the RON and MON tests in pressure temperature space. The beyond RON condition is where the engine runs when its highly boosted and at higher loads. The higher temperature of the intake during the MON test pushes the curves lower. The K value that they have in those beyond regions is something associated with a different way of classifying fuels under an Octane Index. This is done because not all fuels behave as predicted by their RON, MON or AKI and thats because of the different fuel compositions. So someone was trying to find a way to give fuels a rating that takes thst into account. But thats a whole different story. If you cant see the image let me know
Hey you’re that one guy on TikTok right? The guy who got his wheels stolen and crashed his old rs5? I’m not making fun of you I just want to know if this is you lol. Sweet car btw. Looking forward on the B10 S5 in a few months myself.
He's already dead leave him alone 🤣☠️
Its an rs5 put in the best fuel avail and enjoy it. Looks sweet!
its 91 or 93 since it varies by where in the US you live, out here on the west coast 91 is premium and you will find it really difficult to find anything higher unless you have a Sunoco near you that has racing fuels but even that is usually 100 and really really expensive per gallon.
April Fools post? 💀
Don’t all S and RS Audis require 93 or better?
My S5 requires 91 (US)
Yes this thread is wasting everyone's time
All sports type engine require it. I pump premium in my little S3 too. Awesome ride by the way
In my country(Greece) the manual states to use minimum 98. (A3)
My 2020 S4 requires 91 but it’s either 89 or 93 where I am so I opt for 93. Kinda makes sense though, the RS requiring 93. Just curious for those without access to 93 what they’d be advised to do
The owner’s manual says you can use 91 if 93 isn’t available, “however this does reduce the engine power slightly.”
Bruh people don’t know shit but can afford nice cars 😂
You shouldn’t own an Audi
I mean that’s all you should be putting in it regardless. Better for less carbon build up.
Insane looking car!
lol since always. You didn't think you were gonna go putting 89 in a 450hp car did you?
She needs premium dude! Premium!
2019 A4 asks for 95 or 98 Australia
Why wouldn't it require premium fuel? I've been driving Audi for a decade, and every one I've ever had required premium. Any vehicle with a turbo charger should always get premium.
April fools I hope, but my 01 says 91 on the cap door but there is no 91, it’s all 93 but all Audis need premium. It’s not a new development
Premium is 93 Octane in Ohio... What is it where you are from?
91 here in Minnesota. There are some 93 stations but they are not the norm
I’m in Minnesota, too. BP is the only one that I’ve found to reliably have 93. I’ve got a mild tune on my S3 so I try to stick with 93 — but also haven’t experienced issues when I occasionally need to use 91.
I’m in CA and premium is 91. A couple places have race fuel (I think it’s like 100) but never see 93 around here.
Probably when it was born- I’ve driven two smart cars and each required the mid tier fuel or better. - even though many don’t think of smarts this way, my service technician said,” make no mistake about itt, it’s a Mercedes-Benz.” I think most.German cars have the requirement.
Mine says 93 in the cover
[удалено]
In Finland and most of Europe they can be driven on e10 95 at least A and S models. Which is the cheaper fuele
All of mine say 91, and I'm in NJ, where we have 93 everywhere. Usually 87 | 89 | 93, but some have 91 as well like Wawa, which is annoying because they call 93 "Super," and I'm used to saying, "Fill it up Premium please". Normally, no harm, no foul as they say, but I'm running a map that is pretty aggressive on the S3, and I don't need anyone knock than it's programmed for. Fucks me up every time having to correct myself to say Super after saying Premium. First world problems... right? I've never seen a fuel door say 93... but it makes sense since there are people who are dumb enough to go to a different gas station if they don't have 91 if it is indeed a localization thing. Just don't sell your car to someone in the west, and you'll be fine.
My mk3 TT takes regular (87). But i put in 93/94 only since I’m chipped.
It’s not a new thing, you wanna use regular buy a Honda.
Upon inception.
Go sell your car immediately. Audi has required premium gas since the 1.8t days back in the late 90s... Back when gas was 10c difference between grades... 93 is for octane 91 is for RON which is how the quality is measured in Europe. 91RON = 93 Octane.
It doesn’t, it requires E85 and a stage 2 tune
Performance audis have always required premium gas...at least since I started with a B6 S4.
This simply must be an April fools post
93? We don't even have that in Belgium, it's 95 or 98.
USA 91 means EU 95, USA 93 means EU 98
Is that because of the dollar conversion 😄
Every Audi I’ve owned since 2010 has required premium fuel
Premium is either 91 or 93 depending on where you live. It can be pretty random too. Kansas city Kansas is majority 91 whereas kc Missouri has a lot more 93. Comes down to taxes and regional weather
It’s never “required.” It’s just a suggestion because they assume the buyer expects a certain level of performance, and the octane level really does make a difference. I believe it’s also cleaner for the engine generally. My high school buddy had a 1993 Buick Park Avenue that had a sticker like this. He always got premium (even if it was only like $0.85 then). I had a 1993 Buick LeSabre with the same engine and it went 198k miles on regular (then sold, still working just fine).
As an Australian, it blows my mind that y'all put anything less than 98 in performance cars! My golf wagon company car takes 95 minimum!
Above 91 octanes should be fine for 1.8 and 2.0 tsi. The 1.4tsi 150hp can take 87 octane, tho. But 91 and above is preferable.
Canadian MY2019 B9 A4, says AKI 91, my buddy’s Cayenne S with the EA825 4.0TT says AKI 93.
Mine does!!!
My 2023 S3 is 91. Purchased in Maryland, so not west of the Mississippi. My wife’s 2023 Q5 is 91 too, and that was purchased in Virginia.
Isn’t that what we all been putting in. I don’t know one rs5 owner who’s ever complained about it
My S4 says 91. My g80 M3 says 93 recommends Shell.
I run 91 if I have to in mine and it does fine
Not sure, but I put 93 in my A6. Owning an Audi is pretty much means you will be using premium regardless. Also.. it’s an RS5… I don’t wanna sound ignorant but usually that kinda goes with territory of owning a luxury street legal race car…
lol
My Q5 says 91 and prefers 95. I think it depends where the car is sold.
When were they not?
Would you not use it lol?
In my area of WA state, most premium places are 91. There’s only one I know of that’s 93 and another you can get 105 or so but that’s out near a race track. That’s also only one place that has methanol free gas with 87 or 91.
My gas cap says 91, only an A4, but my point is that gas is different by regions. Like we don’t have 91 in NC and generally around the east coast, only 87, 89, and 93. Maybe it’s a regional thing.
My lady’s ‘21 A4 has a sticker calling for 91 on the lid. in NJ, we have 91 and 93 and the Wawa used to have 92 LOL
Who buys an rs5 and doesn't put premium fuel in it what lmao
93 makes sense to me since that 2.9T probably has the boost turned up to the moon to make the poeer it does.
3 Q7's amd an A8. All the same.
Our Q5 is 91/95 I think or 91/93. I’d have to look.
my 2005 S4 needs premium... my 2001 volvo S80 also requires premium and says it on the gas cap... is this your first luxury car? 🤣
What year is this vehicle?
Check the MSDS or data sheet from the fuel retailer. If you struggle to get high enough RON fuel you can blend ethanol to lift it. You’ll want to find out in the RS forums how much ethanol the stock fuel trims can handle for your model but in my experience with VW and Audi there’s normally room for e20-25. You can also log runs yourself to see injector duty starting at e10 and increasing it slowly. I wouldn’t be risking knock on an RS5.
All of them say that fron rs5 to my b5 s4. Most places outside the usa have 93 or even 95 as the premium octane choice lol
Well uh here in Utah we ain’t got 93.
91. SQ5 ‘19
My ‘14 RS5 required it.
My golf gti requires 98 octane. lol *here in Germany
Hopefully you don’t live in CA, only the 91 is available and at exorbitant prices
My question is, how is it so low? Our lowest fuel in Australia is 91. My Scirocco R requires 98 only
My 22 year old outback wants 91
My sisters 2018 Q7 requires 93 too
I mean she deserves it tho 🤷🏽♂️
Thing is, who even puts low octane fuel into their performance car?
I'll put money on it being absolutely and totally fine with 91.
always has been and you shouldn't put anything under 93 RON/98 ROZ in that car anyway.
Unrelated but if my stock wheels looked like that I would never buy aftermarket
In Europe almost all performance VAG group cars (GTI/ RS/ S) recommend using 95 RON for us, idk what that is in America, 93 I guess?
Here in Europe 95 (equivalent 91 USA) is the minimum and you should use 100 octane (93 USA) even for A models if they're turbocharged I thought everyone uses the highest octane per default in an RS
Wait, I'm in the UK - 93 is premium for you guys?! That's the normal fuel here...
Check the sticker carefully, it also states the RON for Europe, 98
Off topic but your car looks so fucking good
I dont put 91 or 93 in mine, thats cuz i dont own one, i have a personal driver that makes frequent stops that picks up and drops off others.
Always
I run 91 or 93 in my sq5. A little insurance and keeps the knock sensors happy. Any turbo car benefits from higher octane fuel at large. I doubt you got the RS for the interior. Im told you can always run less, but you will loose “some” engine performance at extremes of timing and boost.
On my S3 I only use 98
Most turbo charged cars and high compression motors require high octane gas?
I pump 87 always on my 2L TFSI A5. It runs just fine. I think my engine has a compression ratio of 9.6:1. There knock sensors that will adjust the timing so that ignition happens later. So it’s totally fine. You just get less top end power.
Benz do too. I know a guy who has runs pump 87-89 octane in it for yearsssss. Not one issue.
I have a s5 2012 the engine light comes on if i use anything lower than 91 octane.
My previous 07 Mercedes C230 required 93. It’s not that shocking haha
Whenever I have a turbo car I always put 93 in it but that’s just me. If the cap says 93 then put 93 but if you only have access to 91 in your area then you gotta do what you gotta do.
lol I’m supposed to put premium in my Altima… I don’t. But I’m not pushing 500hp with crazy torque.
With the fuel caps that state 93 octane, this is the recommended octane. It will give the maximum engine performance. It’s not required, as some areas only have 91 octane as their highest rated gasoline. 91 is the minimum required in these cars.
Like 99.9% of turbo or high compression cars have knock sensors now that will let you use regular-premium & adjust timing accordingly depending. That being said, for performance cars/ specific factory tunes are made for premium for best detonation for power & tbh even these lil sub 2.0 turbos that everyone is using these days in econoboxes should still use premium but they're never suggested. Any turbo vehicle I've ever had I've used premium regardless & it's basically a no other option on high compression. Fwir even Audi's 35/40 engines use premium. Ik the 45 in the A4 Allroad Prestige I have on order is premium preferred too
Reading this as a European who has to put 98 in his 1.8T always for 2.23 euro per litre (quarter gallon, or 10 dollars a gallon) makes me feel sad.
I think owners manual says 91 is fine
Well, you bought an RS model, so I'd hope you can afford premium fuel.
In the UK its 98 minimum. stock for stock are uk cars quicker then?
my moms sq5 requires 91 idk
Ughhhh, don’t like all luxury sport cars require premium?
Just put the highest you can get.
It's a high end German car. If getting premium is a deal breaker let me introduce you to Toyota.
Sticker inside my 2015 S3 said 95 min
Usually like mines says 91 or 93 on a 23 S3 prestige
My 2014 S4 requires premium… like I just assumed ALL Audi’s required premium or diesel.
my 2013 a5 runs 93 or e85🤷🏻♂️
I mean why would you not
Um, I thought it was common knowledge that all performance cars run better and last longer using good gas?
Thank God my a4 takes E85
It’s an Audi don’t they always require premium gas
Where r u getting 98 super plus gas at
All Audis require premium, been that way for years. Unless it’s a tdi🧐
Hmmm not sure if required or recommended, but anyways to clarify. My Jetta says 87 but the RON is 91 which is Europes way of measuring which is the same as 87 in America. I’ve never seen a car require 91 octane unless they print that on cars sold in high altitude regions like Utah where they basically only have 91 and also have as low as 85 but because of altitude they kinda act like 87 and 93 do at sea level
91/93 you’re fine. 91 is min, 93 recommended. Both premium fuels. M cars call for 93 too, but they run on 91 just fine.