
Re: What weight oil do you use?
It does get cold here in the Phoenix winters but not long enough or cold enough to require a 5w oil. In an engine this small conventional wisdom would say a lighter weight oil would indeed give better mileage though. I don't dare try it in summer when we seem to spend most of the year at 110+ degrees.

Hmmm, maybe the heavier oil is why my gas mileage drops in winter even though the air is cooler and denser when cold. THAT in itself should always give better mileage and performance. I'll try dropping to a 10w30 this winter and see what happens to gas mileage.
Joe