oiling · FF-0186

What oil does Ed run in a rebuilt Flathead?

Ed runs regular straight 30-weight motor oil in these older engines, pointing to the valve train clearances and the way the engine lubricates. He does not run 10W or synthetic, and says a multi-viscosity oil is not needed in Arizona, though it might be back east if you drove in the winter.

Expert

Ed Smith

Evidence

expert attributed

Component

engine oil

Applicable scope

1949–1953 Ford Flathead V8 with a Mercury crank, built for a 1949 half-ton panel truck