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My owners manual says premium fuel is "recommended". Why?
The car seems to run the same regardless of octane (she is a 1989 100Q
non-turbo 2.3 in-line five).
All major-brand regular fuels have detergents for cleaning injectors so that
can't be the reason, can it?
Is it worth hearing some votes on the question of 87 octane vs. 93?
IDD Information Services
Livingston, NJ USA
P.S. If you've discussed this before, please point me to the appropriate
archive . . .