I was told a rule of thumb by my old mechanic that 87 octane is good enough for four cylinders, 89 for six, and 93 for eight cylinders. That's probably wrong, though, so I'd like some clarification. However, I've used 89 Octane fuel in all my six-cylinder engines after trying both ends of the spectrum and believe that it's a good match for fuel economy and efficient burning. Off-topic note: Happy birthday to Gene Roddenberry, author of the most famous split infinitive of all time. ;) Farrar cruznmd wrote: > Do you guys all really put 93 octane in your cars, or have you found > that it doesn't really matter? > > The manual says "91 octane only" but all the pumps in my area only > sell 87, 89, & 93 octane. I would think that 89 would be close enough > but..... > > Anyone notice any adverse performance or mileage from the lower > octane fuels? > > Rich > > > > To unsubscribe from this group, send an email to: > DMCForum-unsubscribe@xxxxxxxxxxxxxxx > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > > > -- Farrar Hudkins Announcer/Producer 89.9 WWNO FM New Orleans / 90.5 KTLN FM Thibodaux-Houma Live audio stream @ www.wwno.org Yahoo! Groups Sponsor ADVERTISEMENT <http://rd.yahoo.com/M=244522.3707890.4968055.1261774/D=egroupweb/S=170512 6215:HM/A=1595056/R=0/SIG=124p07ne0/*http://ashnin.com/clk/muryutaitakenat togyo?YH=3707890&yhad=1595056> Click Here! <http://us.adserver.yahoo.com/l?M=244522.3707890.4968055.1261774/D=egroupm ail/S=:HM/A=1595056/rand=183516683> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> .
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