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Old 12-10-2012, 09:34 AM   #71
Gnarly Adventurer
Joined: Jul 2011
Location: Around Pittsburgh
Oddometer: 324
In my time, I have always used regular 20W50 motor oil in rebuilds as assembly lube, but most important is to spin the engine with out spark plugs to attain oil pressure before the first start up. I use regular 10W30 as break in oil for about the first 500 miles. Never had a problem.
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