jaykray1

Just picked up a 01 AR. Does it really nned 91+ Octane?

Rally_nutcase_1982

but try not to go below the recommended value...

Ritz

If you can't afford premium gas, just wait until you get to your first timing belt change....an Audi is probably not the best choice for someone that's going to agonize over buying premium fuel. :-)

Cheers,

paulroad

Kind of a comparion and I found that the MPG was better with higher octane than with lower. But it was in direct relation to the $$/mile. IE: 93 Octane was 8% more cost and I got 8% better MPG. So, I give my car the higher octane, because I feel the difference and the out of pocket is the same.

Link20vt

In Colorado, I was able to run on 87 (at 5300 ft) with no noticible reduction in timing advance. Gas milage did not suffer either. I imagine when intake temps get higher, I might get some detonation on 87. You can always try it and see if you feel any difference. But my opinion is, I wouldn't tow a boat up any hills with less than 91/93. If you put-put around town you could be okay.

rdar

15,000 miles per year 17 mpg average and $.16 more per gallon for premium, it will cost about $140 more per year. Is it worth the risk?

mowog

you can burn crap and be OK. But add some boost and you really need higher octane. So if you want to drive like the car can be driven then I would use 92/93 or whatever is in your area.

jeanfor

if you can afford an AUDI either new or used you can afford premium gas...

dug01

I tried 89 Octane--ran good but noticeably less performance!!