We would like to know what facts or fictions u used to come to this conclusion. And oil should never have to absorb dirt.
Oil Change Intervals
Discussion in 'Trucks [ Eighteen Wheelers ]' started by kwforage, Sep 12, 2009.
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Lunacy? I guess it depends. Your statement doesn't sound well reasoned. Oil doesn't get "saturated" but in fact is a carrier of contaminants which are measured as a percentage. Many here, like myself, have been monitoring engine oil performance in everything from small to large diesels in construction equipment, ag equipment, and trucks for several decades. I think that you would have a bit of an issue proving that these folks and myself know nothing about engines.
It would be lunacy to just extend the oil drains without having an understanding of oil samples and what to look for. Just relying on the hype put out on brochures by filter companies and such is not realistic. But sampling done by a reputable lab is the only sound way to go.
If one doesn't choose to extend their oil drains, so what? No skin off my back. I don't try to set world records in extending my drains, but I use a little common sense and rely on actual data to make an informed decision that extending my drains 2 to 3 times the OEM suggested level is realistic and not harming my engine. And the facts speak for themselves.... 1.4 million on my previous N-14 without ever being opened up except for running overhead, still averaged over 7 mpg and only used about 1 gallon each 8-10 thousand miles. It got 30,000 mile oil changes on Kendall oil with baldwin filters for its entire life. My present ISX has 630,000 miles on it and using a bypass filter, wear metal levels consistently lower than similar engines with lower miles, and soot levels that are impressive for an EGR engine. Had the oil pan off recently to replace a leaking gasket. Nice clean pan with no residue, crank/rod bearings looked clean and good. Overhead done late last year and top side was clean with not buildup. No worries.oneshot Thanks this. -
The whole idea of testing oil to judge the soot buildup in the engine is pretty naive and serves mostly laboratories. All they check is the oil, not the engine... Sludge buildup is whole different story, but takes more effort to find out since you have to open the engine more or less.
I don't blame you nor anyone for being cheap or even selling BS products - it's all good as it floats your boat, all I'm saying, its dumb to save few bucks on oil only to be charged thousands for earlier rebuilt. -
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