Originally Posted by big_c
So, I ordered a couple quarts of redline 75w-90 to do this. Car is a 335i with 94k on it. Its been dealer maintained and I have all service records from PO- was a little old lady.
I squeezed underneath the car very easily, and cracked open the fill plug with the breaker bar. Piece of cake.
However, I was startled to find that the fluid (presumably factory fill unless somehow the lady changed it..doubtful) looked like new.
I checked it and put it on paper, was a perfect honey color like new XO fluid. So im wondering....do I continue with the fluid change as most of the darkness and particles has gravitated to the bottom and I only saw the very top nice fluid?
Or do I return the red line fluid and assume that its still ok?
Did you drive around (warm up the oil) first? If so, leave it alone