Premium Gas Recommend
On my dash it says "premium gas recommend" does that mean I have to use 91/92
octane gas or can I use 89/90 octane gas?
91 octane or better. Anything less and you risk damage to the engine. "Penny wise, pound foolish"
It is an eighteen year old Oldsmobile- the lower grade gas won't make much difference at this point- it ain't gonna blow yo' engine up-
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