Posted by wilder11354 on October 24, 2010 at 18:57:57 from (74.69.163.51):
In Reply to: Re: lead or no lead ? posted by buickanddeere on October 24, 2010 at 14:56:34:
100LL avgas actually is a minimum of 99.5 octane rating. 6 points higher than standard auto high test of 93 octane. i run 93 octane in my oliver 1750 gas motor , it requires min 91 octane fuel, plus a bit of marvelos oil, because of the ethanol in fuel today tends to dry out rubber parts in carbs. Theres lead in LL avgas, about half as much as standard 100 avgas. Depends on what P&W engine your using. 985's get away 100LL if you don't pull to high a manifold vaccuum for too long.
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Today's Featured Article - Good As New - by Bill Goodwin. In the summer of 1995, my father, Russ Goodwin, and I acquired the 1945 Farmall B that my grandfather used as an overseer on a farm in Waynesboro, Georgia. After my grandfather’s death in 1955, J.P. Rollins, son of the landowner, used the tractor. In the winter 1985, while in his possession the engine block cracked and was unrepairable. He had told my father
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