AFIK, you should use the premium gas, especially with the turbos. But, using a lower octane once and awhile really won't hurt anything except performance. Who needs peak performance ALL the time though?

 

I just bought my 02 a4 3.0, the dealer had put 87 in. I just filled up with 92 yesterday and noticed a big difference after an hour of driving.

 

Hey I know you Yyoon. Congrats. See you on audi world.

yes opur 3.0's get boggy as heck with 87. 92, or 93 only

 

Sunoco's Ultra... 93 octane at $3.39/gal (I'm in Jersey) not as bad as new yorkers with +$3.50 for premium gas. Anyone from jersey ever been to this cheap *** private gas station on Rt. 35 near Middletown that had 95 octane gas? I'm not even sure if they even exist anymore, that was like 10 years ago...

 

hey everybody im new to the site and to Audis. i just got mine about 2 hours ago and the dealer that delivered it put 87 in it and the engine light came on about 5 miles after i started driving it. im gonna take it back and have it checked out just incase

 

well i got the car back and have taken it back in twice now. The code is coming up that it is running lean. they replaced an o2 sensor and i dont know what else it could be. the dealer just resets the light and says its good, it is a honda dealer though. im gonna have it checked at an audi dealer this week. im just glad i bought the extended warranty

 

You had a Honda dealer check the codes on your Audi?

That's like having a mexican cook you italian food.

 

the only reason i had a honda dealer do it cause i bought it from them and it was still under my 3 day return. they actually took it to Audand it turns out it was a vacuum line that was causing the code. all better now

 

I have an a4 and my sister has an 2006 a6...I strongly recommend u only use the best gas. I accidently put the cheap gas 1 time in the a6 and the car kept jerking and wouldnt switch gear sometimes...hope this will help!