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Ask Mobil Archive -
Oil Coloration
DateQuestionAnswer
09/20/2008
Getting Water Out of Motor Oil
I forgot to put the oil cap on and water got in the engine. How can I fix it or get the water out?
It depends on how much water is in the system. Minor amounts of water will be driven off if the vehicle is operated at sustained high operating temperatures. But if there is excess water in the fluid,...
10/22/2007
Should Synthetic Oil Darkening in Color be Changed?
I own a 5.4 liter Ford engine with 90,000 miles. I purchased it with 87,000 miles and at that time chose to use Mobil 1. I've run the Mobil 1 in this engine for 3,000 miles and my oil appears to be "b...
We would never use color alone as an indication to gauge whether or not you should change your motor oil. Without oil analysis you can reach the wrong conclusion about oil quality and in many cases da...
12/10/2006
Motor Oil Has Turned Dark and Milky
After about 1100 miles of use with Mobil 1™ full synthetic, my oil turns dark and has a milky like consistency. I have consulted many of my friends who say the same happens to them. Is this a problem ...
We are not aware of this issue unless you are making multiple short trips and never fully warming up the car.  If this is the case, we recommend a 20-minute drive on a freeway or interstate to drive o...
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