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#1 |
Registered User
Join Date: Oct 2008
Location: Bozeman Montana
Posts: 21
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Oil Question?
I just bought a 1971 c20 with a factory 400, 83,000 original miles. Does it matter if I use 10w-30, 5w-30, or 10w-40? I had a 1970 with a 350 and I always used 10w-30. Just wondering if it makes much of a difference?
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