Originally posted by ExDelayed:
Originally posted by contour_r_us:
As far as color of the oil after a given period of time in use, everyone has mentioned the various factors; engine condition, drive cycles, sludge in a neglected engine being removed, etc. What I haven't heard is that the discoloration is indictive of the contaminents being held in suspension.



Also take into consideration the coloring that the manufacturer adds to the oil so the consumer will have golden brown oil. The oil that is in my car right now is very dark right out of the bottle and has a ever so slight green tint. German Castrol Syntec 0w-30



Excellent point. I recall that when I was first introduced to Mobil 1, back around 1977 (yea, I'm OLD), that it was so dark right out of the bottle. Looked dirty going into the engine. I was running SCCA Showroom Stock (German Opel)at the time, and was told to "get over it" (what ever term was in use back then).
Bill