Webb31 jan. 2012 · Best Answer. Copy. The reason why there is a thick sludge under your oil cap is because the engine ventilates crankcase pressure up through the valve covers, this … Webb20 feb. 2010 · Condensation forms under the oil cap, as mentioned, it is platic. Short trips can cause water to get into the oil, as water is a by product of the cumbustion process, and if the engine isnt run long enough at operating temp, it cant burn this off. Thus the "Milky" colored oil under the cap.

sludge buildup in oil cap Mercedes-Benz Forum

Webb27 jan. 2024 · Modular V10 (6.8l) - Yellow sludge on oil cap and fill tube - Hello, I was doing my oil change today as it was a balmy 50 in Iowa and noticed the cap was hard to take … Webb24 dec. 2024 · Joined Jul 10, 2024. 780 Posts. #10 · Dec 18, 2024. The sludge on the cap is caused by moisture getting into the crankcase. On gas V8 engines it is usually caused by leaky intake manifold gaskets, but I don’t know on these Cummins. I This may be why the previous owner got rid of it, as it was probably an expensive fix. inch long buzzcut

White - Gray sludge under oil cap TDIClub Forums

Webb29 dec. 2010 · The color ranges from brown to a thick yellow-white mayo-like sludge. It is present in virtually every e39 to varying degrees. It often means, but not always, a failing … Webb8 apr. 2013 · However when i went to check the oil tonight I noticed some white sludge at the very top of the oil filler cap and just inside where the cap screws into the engine. When i took the dipstick out most was covered in normal oil but there was a slight bit of white sludge on the very end of the dipstick. Webb28 nov. 2005 · While sludge is not a problem unique to ML, the later is known to be more succeptible to it. That is why MB changed their specification early on in the ML model life, from regular oil to synthetic. There was even a class action law suit which prompted MB to extend the warranty on the engine to 100K miles. inala library hours