Alaric
New Member
- Joined
- Dec 4, 2011
- Location
- Satan's Colon, US
Alaric, sir, oil doesnt need to be clean! As long as theres oil in there, all is fine. You drive 10 minutes and oil is black already after it's been changed..
Now you're in my bailiwick. Color doesn't denote cleanliness. I'm referring to particulate matter. Tiny, sometimes microscopic, carbon deposits with sharp edges that scratch bearings, cylinder walls, piston rings, valve stems, etc.. And one of the prime offenders, acids. Short trips that do not allow the engine to reach operating temperature do not generate enough heat to burn off the acids produced. What acids? Condensation occurs in engines, humidity, both introduce water based moisture inside an engine. That water mixed with combustion byproducts (hydrocarbons) creates acids. Those acids will etch bearings, metal, creating damage that no amount of clean oil can fix.
Side note: Oil filters have a bypass valve, allowing unfiltered oil to circulate if it clogs. You still have oil, but it's garbage and it's destroying your engine.