What causes oil sludge to clog the oil filter?
What causes oil sludge to clog the oil filter? As it settles, sludge can clog narrow oil passages or the screen on the oil pickup tube, restricting oil flow to vital parts, especially the upper valve train. Deposits can cause the rings to stick, reducing engine compression and horsepower. The tiny openings in the oil pickup tube screen can easily plug with sludge, starving the engine of oil. What to do about engine sludge after an oil change? Using a good motor oil will keep all of these harmful contaminants suspended in the oil, ready to be flushed out on...