Quote:
Originally Posted by jehartley
The color of oil after use is irrelevant. This is an old myth. Mobil 1 EP is an outstanding oil. I've used and use Amsoil in various vehicles. Guess what? It looks dark when it comes out as well. Oil is supposed to be dark when it comes out...that's how you know it is working.
Want to be suspicious of an oil? Run it for 3,000 miles or longer, then drain it. If it comes out a golden honey color or lighter; be very worried. That means it isn't working.
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I have used various name brand oils over the years in small engines and in performance vehicles, but I have never seen anything that looks that bad. To me it looks likes it breaking down and ready to be changed. I am by no means knocking any of the oils. I just want to be sure that it's not breaking down too soon.