Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Pennzoil and Sludge!
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Old 08-01-2004, 10:21 AM
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Ghetto Jet Ghetto Jet is offline
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Well this isn't very technical but my mom also has an 85 Caprice, hers has 170,000 miles, the last 140,000 she put on it are Pennzoil miles and there is no sludge build up, and that motor runs great, but to be fair the oil gets changed every 3,000-3,200 miles.

I wouldn't be surprised if Pennzoil was more likely to cause sludge build up when driven past normal change intervals, it appears to have more impurities in it than most oils.


Check this forum out, they are dedicated to motor oil.
http://theoildrop.server101.com/cgi/ultimatebb.cgi
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