What's the best Gas ( octane ) to put in my 1997 Buick Lesabre custom!
I believe regular is considered 87 octane in most states.
As for brands. Shell Exxon Sunoco. Those are my favorites. As for crappy name brands. Gulf. Hess. Citgo.
a car will run best with higher octane gas- and forget the ethanol- that stuff just gums up fuel systems, especially if it is sitting- so it depends on how much money you have, and if you can find gas without the bio- additive-
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