RickyN F355

What does the owner's manual say?

Audiboy

The ECU remembers the recommended timing so it would pull back a few degrees and for a stock 150hp 1.8T, that could be around 3-4 hp less per degree of retard. If you knew someone with a VAG tool, you can have him check to see how much timing retard is applied and check the output of the knock sensors. If they are zero or close to zero, the ECU has adapted and the car will survive. Also depends on driving style if very aggressive or moderate. btw, depends on how trained your ears are, it may be hard to notice low rpm ping. High rpm ping is almost unheard, but happens

I recommend at least 89 on a force fed car though as heat is the killer of engines, so any resistance to pinging is a must. Usually for long drives (in California) I recommend a lower octane since all it'll do is get digested without the requirement to make full power most of the time.

fanta4

to be safe, use the highest octane obtainable at your local gas station.

mike-lur

mine says 91, real big. but somebody may have stolen yours.

mike-lur

damn your sig looks fun.

fanta4

;-)

RickyN F355

RON, MON, or (R+M)/2?

Hokie_Audi

That's 91 (R+M)/2 or about 95 RON.

mrwho13

chill out dude, damn...

peetr b

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