Thread: Oil Sludge?
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Old 02-18-2011, 08:13 AM   #30
Drewfus2101
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Quote:
Originally Posted by antonmn View Post
Last year I ran with 2/3 of a can of SeaFoam (basically a solvent) in the the crankcase for about 2500 miles. It really loaded up the oil filter with flaky crap, and caused the filter pleats to distort, as though they were under a lot of backpressure.

Long story short, it loosened a lot of garbage and sent it to the filter, which is what we want. But I'd probably only run it for maybe a thousand miles at a time. Maybe do that a few cycles with a cheaper dino oil.
I use SeaFoam as well. I usually dump in about 1/2 a can and then drive about 50 to 100 miles, then pull right up on the ramps for an oil change. Then change the oil while it is still smoking hot, so that it is still real thin. Also using M1 0W-40.

Just changed my valve cover, not a DROP of sludge.

I agree that 2500 miles is too long.
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