Thread: Flathead smoke
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Old 02-19-2016, 09:47 PM   #47
guy1unico
Senior Member
 
Join Date: May 2010
Location: Dallas
Posts: 583
Default Re: Flathead smoke

at most 1000 miles then i went to synthetic.
My pretty knowledgeable friend says break in oil should be for at least 800 miles. i put in quart of Lucas pure petroleum oil and 4 quarts of 30 weight non detergent...it seems to smoke alot less now, but not 100% clear. I'll keep on driving and see how it goes. The motor never has lost performance, and it doesnt smoke on the highway.Just smokes as it builds combustion / switching gears or revving.
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