Date: Tue, 02 Feb 1999 23:22:28 GMT From: bulwnklnopsambee_emm.net (Eoin) Subject: Re: 93 9000 gas mileage low - why
Sounds strange, doesn't it? It's not at all true, of course. Oxygenated fuels are typically either (up to) 10% ethanol or (up to) 15% MTBE (Methyl-Tertiary-Butyl-Ether). Now, if the fuel in question was 15% MTBE, and if MTBE had ZERO potential energy released by the combustion process (that is NOT the case), then a 10% mileage drop would be at least in the ballpark. However, MTBE has only (very roughly) 10-20% less available energy than gasoline. Therefore, a 10-20% loss on 15% of the fuel translates to a 1.5-3% potential power loss. Only part of this will be observed as reduced fuel economy, though. The rest will simply be degraded performance. So, relax; it's just an old wives' tale. --Eoin On Tue, 2 Feb 1999 18:00:04 -0500, "aero" <aeronopsamityconnect.com> wrote: >What??? >DamonP228 wrote in message <19990131200452.02093.00001108nopsam0.aol.com>... >>If you live in the North they change over to oxygenated fuel in the fall. >Your >>gas mileage will drop about 15%. I hope this helps. >> >>dp > >
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