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Old 03-09-2003, 01:50 PM
Registered User
Join Date: Jan 2003
Posts: 140
Oil turns dark fast!

I just did an oil change in my 1985 300TD Wagon and I noticed that the oil turns dark within a few miles of driving. The technician assured me that in diesel engines the occurence is normal and he sees it all the time. He suggested the engine flush liquid which apparently cleans junk in the engine (done when the old oil is drained and before new oil is poured in). Please tell me that he is right. What would cause this to happen? I thought that oil changes color over time but in my 260E W124 that happens over 4000-5000 miles from the oil change and the oil still remains lighter color then.

P.S. It was -10 this morning with -30 wind chill and after two glow cycles and not being pluged in she started on me the first try!!!

Igor Zeljic, Minneapolis.
1984 MB 300D Turbo Diesel W123 Sedan 132K
1987 MB 300D Turbo W124 Sedan 295K
1983 Porsche 944 104K
1989 Audi 80 Quattro 180K
2002 Audi A6 3.0 Quattro Avant 49K (Wife's car with warranty )

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