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Old 09-22-2011, 09:27 PM   #85 (permalink)
Ford Man
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Quote:
Originally Posted by dremd View Post
Quick google search will show lots of motors at 1,000,000 miles on a single drain.
They are all running some type of bypass filtration and using oil analysis to keep tabs.
I've seen several on conventional oils, this is nothing new, but they keep very close tabs on things, and add bypass filtration.

Trucks Surpass 1 Million Miles Without an Oil Change

On small gasoline/ diesel motors there is unlikely any cost savings vs just draining the oil, but it is still fun (with proper monitoring).
I agree that bypass filtering or toilet paper filtering and 10-15 gallons of oil opposed to 1 gallon or 1.25 gallons most cars use will increase oil change intervals and another important thing you brought up was they were monitoring the oil through UOA, plus most of these engines are run for several hours at a time where most automotive engines are run short increments many times not even long enough to burn off the moisture and other contaminants produced in the engine.
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Last edited by Ford Man; 09-24-2011 at 04:51 PM..