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so.... oil quality has improved to the point where 'they' wnat you to chang eit more often.hmmmmmmm
'67 Mustang I did every 5,000 miles now 'they' say every 3000 miles...
maybe he oil's aren't better ?? or someone is scamming JQ Public.
Engine oils are better than they ever were. But the fuel we’re using on automobiles (which is where you are transferring the 3-months/3K miles recommendation) is ethanol-laced unleaded So-called “gasoline” (more like paint-thinner/solvent actually.)
The point is that the combustion by-products are harmfull to the engines internal components. (Engines no longer made of cast-iron and steel with leaded-bronze plain bearing...but these days have aluminum, plastics, and copper-rich bearings) and they don’t withstand acidic oil as well as in the past.)
An extreme example is the new so-called “Flex-Fuel” vehicles. Anyone operating one of those on the “Flex Fuel”... may have overlooked the comment in the Owner’s Manual that requires oil change intervals to be HALVED!
Yep.... Halved! The E85 fuel will KILL your engine internal components even faster than the 10% Unleaded Ethanol will Due to contaminated oil From the ethanol. (So-much for saving money with E85 “Flex-Fuel” hey?? )
But back to trakters.... Diesels have always been “dirtier” in the crankcases and that’s why their oils are different than gasoline engines and also why most diesels oil-sumps/crankcases are sometimes measured in GALLONS rather than 4 or 5 quarts. They need the extra volume in order to accommodate the increased dirt, tempertures, change-intervals, etc.
An IN-Active engine is not good and
at least an annual oil change for my stuff.