Quote:
Originally Posted by BRZPDX
so I have a track day coming up, and some of the guys mixed the 92O and 110O race fuel half/half at the track. I was told the ECU will relearn the high octane fuel and change the spark timing on its own.
Since my car is FI with a custom tune, will I be ok running a mixed high octane fuel at the track? Will my ECU just learn on the fly? Or should I run the car a day or two with race fuel to have my ECU learn?
They ran it fine at the track, saying the car will pull less timing and the car will generally run better with higher octane. No tune needed.
What do you guys think?
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The car will not add any additional timing, but it should give you better knock supression with the higher octane which should help @ the track. Wait for others to chime in.