Sorry guys, but every time I run a lower ratio than 60 to 1, even adjusting the carb as accurately as possible, the engines always sling more crud on the plane. I agree that a brand new engine will be a bit messy at first, especially those that are rougher in the machine work than others. At the 80 to 1 mix I run ALL my engines at, the residue is minimal and the engine longevity is just fine. Those of the "old" school that still believe that 32 to 1 and higher is a great mix can keep it and change plugs a little more often.

The oil ratio thing has been beaten to death, up to and including which oil is the best. Whatever works best for the user is the way they should go. Now if I was racing planes and building up a lot more rpm I would consider thinking about increasing the ratio. As it stands. the planes I fly for work use a 50-1 mix and always come back dripping oil all over the place.

Pat









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