Quote:
Originally Posted by leorod_rn
I had Racechip installed. You think that would cause it? The 89 with the Racechip?
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Ah, I forgot about that. That could have certainly played a role, although I'm not certain.
The reason I was doubting the 89 story, is besides knowing that the cars are smart enough to pull timing once knock is detected, my son's good friend is a porter at our local BMW dealer (I don't use them). One of his jobs is to take vehicles prepped for sale and fill them up with gas before the sale/delivery to customers. He got yelled at for filling up an M6 with 93. His boss corrected him and told him...F that...we fill every car with 87...M or not...premium eats into our profit.
