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    View Poll Results: Do you always fill up with premium?

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    • Yes

      100 88.50%
    • No

      12 10.62%
    • It doesn't matter

      1 0.88%
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    Thread: Do you always put premium in a car that recommends it?

    1. Senior Member
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      09-17-2019 02:18 PM #26
      Quote Originally Posted by Pizza Cat!!!! View Post
      Incorrect. Read my edited post.
      Check your gas flap not random things from the internet.

      Just about every turbo petrol Audi (I think it was actually all) from that era required 91 minimum.

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    3. Don't be me. Don't be a 'Rick' Cabin Pics's Avatar
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      09-17-2019 02:21 PM #27
      Quote Originally Posted by someguy123 View Post
      SQ5 recommends premium, only?
      Meh, it's a lease.
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    4. Member Samson's Avatar
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      09-17-2019 02:26 PM #28
      99% of the time. My car requires premium, but every so often I put in 87. This typically results in slightly less MPG (~20 vs. ~21 for a mixed tank). There's no noticeable difference in power, no pinging, etc. I'm cheap, so it's tempting to put in 87 all of the time, but I fill up every 3-4 weeks... so it's not like there's a lot of money to be saved, and paying more for gas that I probably need to makes me feel special.

      Some guy with a similar car did a many-tanks-long experiment comparing 87 to 93, and found no significant difference except that using 87 cost less. He had an excel spreadsheet and everything, so it had to be true.

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      09-17-2019 02:26 PM #29
      Quote Originally Posted by chris86vw View Post
      Check your gas flap not random things from the internet.

      Just about every turbo petrol Audi (I think it was actually all) from that era required 91 minimum.
      That’s from an Audi-produced technical specification document.
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    6. Member 2K CC's Avatar
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      09-17-2019 02:35 PM #30
      Premium in all of them.
      My wife forgets sometimes when she fills her Jeep Grand Cherokee and puts regular. On that vehicle I don’t feel any difference in performance. But when I put gas in it, it gets 93.

    7. Senior Member
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      09-17-2019 02:37 PM #31
      Quote Originally Posted by Pizza Cat!!!! View Post
      That’s from an Audi-produced technical specification document.
      Which has other errors... (And depending on what year version you happen to find at says 91 required no mention of 87.. as in they changed nothing and couldn't keep their ish straight)

      They told the EPA it required 91 as well.

      Just check your gas flap next time you fuel up.

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      09-17-2019 02:39 PM #32
      Quote Originally Posted by Cabin Pics View Post
      Meh, it's a lease.
      Sure, but I can see the manufacturer pushing you on this if something were to fail due to fueling the car with lower octane than required in the owner's manual.

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      09-17-2019 02:40 PM #33
      Toyota actually recommends premium for the Land Cruiser which I find funny. No ill effects or performance issues during my 5+ years of pouring 87 octane in the tank. Previous cars that I felt were more fragile always got premium if the manufacturer recommended/required it.

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      09-17-2019 02:42 PM #34
      My Ram says it recommends 89 (87 ok)

      Fuel Selection – 5.7L Engines 89 Octane Recommended - 87 Octane Acceptable, 0-15% Ethanol (Do not use E-85).
      Im running 89 in it.
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      09-17-2019 02:42 PM #35
      Quote Originally Posted by unhappymeal View Post
      Sure, but I can see the manufacturer pushing you on this if something were to fail due to fueling the car with lower octane than required in the owner's manual.
      I think he, ahem, "knows a guy".
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      09-17-2019 02:45 PM #36
      Quote Originally Posted by chris86vw View Post
      Just check your gas flap next time you fuel up.
      This could also be wrong, just like oil caps.

      Depending on where the vehicle was originally sold the oil cap could have a different viscosity on it.

      If the manual says it can run on 87 that's good enough for me.
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      09-17-2019 02:45 PM #37
      Quote Originally Posted by chris86vw View Post
      Which has other errors... (And depending on what year version you happen to find at says 91 required no mention of 87.. as in they changed nothing and couldn't keep their ish straight)

      They told the EPA it required 91 as well.

      Just check your gas flap next time you fuel up.
      The 2001 document said the same thing as the one I posted.


      Annnnd the 2005 document *also* says the same.
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    14. Senior Member
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      09-17-2019 02:50 PM #38
      Quote Originally Posted by Pizza Cat!!!! View Post
      The 2001 document said the same thing as the one I posted.


      Annnnd the 2005 document *also* says the same.


      And the 2004 says 91.. whats your point?

      https://www.audiworld.com/model/a6/04/04a62_7t.pdf


      There is one sticker for US cars, no change for regions.



      Bottom line narrow band (as in no WOT fueling feedback) turbo charged that runs stoic for as long as possible for emissions reasons is not recommended to run on 87.

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      09-17-2019 02:50 PM #39
      Quote Originally Posted by The_Real_Stack View Post
      I think he, ahem, "knows a guy".
      Then keep on keeping on with the 87.

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      09-17-2019 02:54 PM #40
      Quote Originally Posted by chris86vw View Post
      And the 2004 says 91.. whats your point?

      https://www.audiworld.com/model/a6/04/04a62_7t.pdf


      There is one sticker for US cars, no change for regions.
      'For Maximum Performance' - it doesn't state that it's the minimum requirement. For some reason on the 04 document they just took off the first part of the sentence, and then re-added it back in the 2005 document.


      Do I need to tell you you're wrong again?


      I also find this especially hilarious since you're the one that said you use 87 and I said I use 93.
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    17. Don't be me. Don't be a 'Rick' Cabin Pics's Avatar
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      09-17-2019 02:57 PM #41
      Quote Originally Posted by chris86vw View Post
      And the 2004 says 91.. whats your point?

      https://www.audiworld.com/model/a6/04/04a62_7t.pdf


      There is one sticker for US cars, no change for regions.



      Bottom line narrow band (as in no WOT fueling feedback) turbo charged that runs stoic for as long as possible for emissions reasons is not recommended to run on 87.
      Just so I'm clear -

      You run 87 in your car, and Rabbit runs 93 in his car, but you're telling him he can't run 87 in his car?
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    18. I’m not a loser. I’m a winnah!! patrikman's Avatar
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      09-17-2019 02:58 PM #42
      Yes. I don’t have to in her car but I do anyways, mileage is better and it runs smoother. My car is tuned for it so I have to.
      this signature kills fascists.

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    19. Don't be me. Don't be a 'Rick' Cabin Pics's Avatar
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      09-17-2019 03:05 PM #43
      Quote Originally Posted by patrikman View Post
      My car is tuned for it so I have to.
      Geniunely curious, the tune you have on your car, can you select more than one setting?

      In our diesel trucks and my 1.8T MkIV I was able to switch between tunes.

      In the diesels it was - Stock, Towing, Economy, Performance

      In the MkIV it was - Valet, Stock, 91, 93
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      09-17-2019 03:06 PM #44
      Quote Originally Posted by unhappymeal View Post
      Then keep on keeping on with the 87.
      See above discussion, somewhere some place on an Sq5 or it's documents you'll be able to find that it says running 87 is fine. Whether it is fine or not.. you'll find a document.

      I would not worry about running 87 because you're afraid of the dealer.

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      09-17-2019 03:08 PM #45
      Quote Originally Posted by Cabin Pics View Post
      Just so I'm clear -

      You run 87 in your car, and Rabbit runs 93 in his car, but you're telling him he can't run 87 in his car?
      Well, an intern goofed and deleted some text from the 2004 document, so that means he can't run 87 anymore.
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    22. Member vwpiloto's Avatar
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      09-17-2019 03:09 PM #46
      The higher compression engines, specifically S2000 (11:1) , 944S (10.5:1), and E90 M3 (12:1) always get 91, and frankly the M3 does better with 93 and higher, though that's not readily available here. The exception is the Mazda 3 with the Skyactv-G 2.0, which has a compression ratio of 13:1, but it recommends 87, and that's what we use. It runs perfectly fine and get 40 mpg when driven frugally, but nets 30 mpg even when driven hard and driven at 80 mph average.

      The 4Runner (10:1) gets 87, which what's recommend for it and it runs just fine.

    23. I’m not a loser. I’m a winnah!! patrikman's Avatar
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      09-17-2019 03:09 PM #47
      Quote Originally Posted by Cabin Pics View Post
      Geniunely curious, the tune you have on your car, can you select more than one setting?

      In our diesel trucks and my 1.8T MkIV I was able to switch between tunes.

      In the diesels it was - Stock, Towing, Economy, Performance

      In the MkIV it was - Valet, Stock, 91, 93
      Nope, the 04 Baja Turbo (and possibly FXT and STI) have something odd with the cpu and they don’t work things like a Cobb Accessport. Mine has a protune from Six Star Motorsports and is actually tuned for 93.
      this signature kills fascists.

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      09-17-2019 03:11 PM #48
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      09-17-2019 03:13 PM #49
      Quote Originally Posted by Cabin Pics View Post
      Just so I'm clear -

      You run 87 in your car, and Rabbit runs 93 in his car, but you're telling him he can't run 87 in his car?
      The reason I do was stated clearly in my first post.

      I've tuned/tested the 87 which works fine due to the safer fuel strategy used on my car compared to stock, once I get deeper into tuning it despite the better fueling I will not continue to use 87 (maybe I'll make an 87 tune because why not). How the car fuels stock would frighten all but a handful of people on this forum.

    26. Don't be me. Don't be a 'Rick' Cabin Pics's Avatar
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      09-17-2019 03:14 PM #50
      Quote Originally Posted by chris86vw View Post
      The reason I do was stated clearly in my first post.

      I've tuned/tested the 87 which works fine due to the safer fuel strategy used on my car compared to stock, once I get deeper into tuning it despite the better fueling I will not continue to use 87 (maybe I'll make an 87 tune because why not). How the car fuels stock would frighten all but a handful of people on this forum.
      I had no idea you were an engineer for Audi.

      Carry on.
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