Dipstick color

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Originally Posted By: zerosoma
Oil on the dipstick - does lighter mean it's not cleaning? Or does it mean I have a clean engine?

After dumping Next Gen after 4200 miles, it was pitch black. Dark as ever. Put in my Mobil Super Syn, took a long trip, after 1,500 miles it's still a wonderful golden color on the dipstick.

What does the color mean, if anything, on the dipstick?


I am running NextGen 5W30 in an old car right now. It was fairly transparent oil up to about 1,500, then darkened a bit and became a sort of yellow/gold color. By 3,500 miles it's becoming dark brown. This has been my experience with a lot of other conventional motor oils too. So what you see with Mobil is not out of ordinary. Also remember that the oil is cleaning when you actually have "dirt" in the engine. If it's a well maintained engine, it should be nice and clean already.
 
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