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Originally Posted by speeder
A while back I had heard that Chevron gasoline did not contain 10% ethanol like most others. Is that a wive's tale? I tried to buy it on the theory that car would run better/get better mileage/etc...
So Sammy, (or any other fuel experts), is there any real difference in the major brands in CA. these days? I put in Shell last week and could swear that my car ran better. (91 octane, stock 996). I let it run dry before fueling, so each tank is fairly pure of one brand. Anyone know? TIA.  |
Blending in ethanol (or equivalent) is mandatory in Ca. since the outlaw of MTBE. Not sure of the exact percentage, they've upped it a couple of times but 10% was the last I had heard in Ca.
There is usually no difference in gasoline from one station to the next or one brand to the next, in fact the gas you bought from shell could have been refined by Chevron, exxonmobil, valero, or anyone else this week and by someone else next week. The majority of gasoline is sold to wholesale distributors who sell it to who knows, after the correct additives are mixed in. The difference is in the additive package and that difference is very small.