Board index Flathead Power-Technical Questions, Answers, and Suggestions Big Twin Flatties good old 60w or something new?

good old 60w or something new?

Post Fri May 09, 2008 3:31 pm

Posts: 74
Location: Wichita, KS
I'm still running Valvoline straight 60 in my 47. Is everybody else still running the tried and true or have you changed to something else and what have been your results?

Post Fri May 16, 2008 4:20 pm

Posts: 1676
Location: Interlaken, NY USA

I put a pressure gauge on my 44 last year and switched to castrol 20-50. I'd always been a straight weight guy till then. the multi stays inside just as well as straight 50, and the pressure didn't change any from what straight 50 gave. I'm a convert.

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