CoOlSlY

There is one thread that was talking that in Europe they recommend 98 in the B6 S4 that equals about 93 here but could somebody tell me what is the recommendation in the US owners manual?

Thanx

Sylvain

Efrino

Manual says at least 91...I've been running 93

JDBlueAudiS4

Just on principal, better for the engine overall.

pastabatman

Can you get 93 in CA? Don't recall seeing it anywhere.

M3expat

In general the best gas to use is the lowest octane rating that the engine will not pre-ignite (ping) under your driving loads and atmospheric conditions. A higher octane rating than you need will make the engine run hotter than necessary. This is one case where more than you need is not better.

2004S4Guy

agree

A4ia

No you can't... 91 is the highest allowed.

Hoots

That is usually the highest octane we see in most US gas stations. In Europe they run higher octane as compared to our market. The normal super in Europe is a higher grade of gas in terms of octane and sulfer content. It's just better gas period due to the refining standards they have.

oatzel

nope. although you can buy 100 octane at select 76 stations.

Ron O

Why do we get 87-89-or 93 here in western NY and we aren't dieing.