In a message dated 97-12-04 10:08:42 EST, you write:
<< I s this true??? I have always thought that higher octane (in cars that
can
use it) actually helps MPG???>>
If the octane is too low you will lose mileage. The engine has knock
sensors that retard the timing to avoid knock. Extra high mileage may or may
not cause your mileage to drop. It is however, a waste of money.
Regards, Paul
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