Quote:
Originally Posted by mav1178
I filled up with 90 octane 3 times on my LA > TX > LA 4000-mile trip in April. No difference in mileage that I can conclusively determine, and the car ran fine with minimal difference in drivability.
-alex
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If the engine pulled the timing a bit, to compensate for the lower octane, it might be less likely to feel on a long haul, freeway driving trip like that ....
humfrz