Originally Posted by jasonh
I'll have to check Shell and Conoco after I'm out of gas. I don't usually fill up my car at those places because they're so expensive. Conoco charges a big premium for premium gas - like 50 cents per gal extra instead of 20 like most places.
I've use the lowest, 87 octane for a long time now, in fact, it was advised I quit burning 91, because the lower octanes were the manufacturers rec...(something technical about the explosion temperature).
About a 10 cent difference for Chevron over Jet Pep here in the southeast.
But note what the news article says about a shutoff valve, so if you have to use ethanol, it all burns off and none sits in the carburater, affecting that diaphram while it sits there overnight.