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Old 09-03-2016, 07:59 AM   #20
rhagfo
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Join Date: Apr 2012
Location: Portland, OR
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Quote:
Originally Posted by hankpage View Post
Diesel oils are designed to hold soot in suspension, thus the the quick black color. The only time I have seen oil run clean is with a "Luber-finer" filter system on an old Detroit Diesel that held 64 quarts. The filter was the size of a small trash can and was very expensive to change. We did oil analysis every 10k usually went 50k before changes. For 10-13 quart engines it would not be cost effective. JM2¢, Hank
Maybe not cost effective, but great for peace of mind at near 300,000 miles.
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