So should I add some "octane boost" parts store bottled concoction to the gas in the Mopar now to see what happens with the regular grade "gas" (10% ethanol crud) in there? Or is that "octane boost" stuff more marketing than chemistry? Thanks, Gary H. > -------Original Message------- > > Gary, > A lean mixture will cause this condition. No one mentions the fact that > today's premium fuel is the octane equivalent of regular grade back when > our cars were designed. I have to think we should use the good stuff for > best performance or detune to accommodate the lower octane grades. > Mike LeFevre -- -- Please address private mail -- mail of interest to only one person -- directly to that person. That is, send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. -- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. http://groups.google.com/group/1962to1965mopars?hl=en.