I know all the stuff about viscosity when cold verses viscosity when hot, Please dont go there, also as my engine has 1/2 Million ks on it I like a slightly heavier oil, hence the 50 grade rather than 40, so dont go there either.
Question??? Now again and again I read stuff saying the lower whatever W oil gives better, as in faster lubrication and protection at start up [where most wear occurs] ,So on cold start a 5W50 oil is much thinner than a 20W50 and the 5W50 gets pumped and splashed around much quicker.
But im imagining myself as a lonely little big end bearing, iv"e had a tuff life and my tolerances are getting bigger as i get older [know the feeling] . Once when I was nice and tight, my close tolerances would hold that 5W50 or 10W50 inplace while cold until my next start, with i think cohesive forces. but now with wider gaps the thinner oil just runs down and out. OOHH that gravity sh#t. So now on startup I am dry.
The 20W50 oil being a little thicker when cold may tend to Remain in those wider gaps.
David
Question??? Now again and again I read stuff saying the lower whatever W oil gives better, as in faster lubrication and protection at start up [where most wear occurs] ,So on cold start a 5W50 oil is much thinner than a 20W50 and the 5W50 gets pumped and splashed around much quicker.
But im imagining myself as a lonely little big end bearing, iv"e had a tuff life and my tolerances are getting bigger as i get older [know the feeling] . Once when I was nice and tight, my close tolerances would hold that 5W50 or 10W50 inplace while cold until my next start, with i think cohesive forces. but now with wider gaps the thinner oil just runs down and out. OOHH that gravity sh#t. So now on startup I am dry.
The 20W50 oil being a little thicker when cold may tend to Remain in those wider gaps.
David
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