The engine oil in my wifes 84' 300dt has turned black after only 1000 miles. I used rotella t during the oil change. Is this color change normal? The car is in great shape and has done about 200,000 miles.

Thanks

if you would have checked it would have been black after 100 miles.

Yes its normal for a diesel and nothing to be concerned about.

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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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It's normal, usually happens alot sooner than 1000 miles!
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That's not bad. My oil turns black right away.

Danny

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1984 300SD Turbo Diesel 150,000 miles

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Hell mine is black after I start it up immediately after an oil change....

black is beautiful baby !!

It would turn black quickly anyway, but the fact that most people do not drain t he oil cooler during an oil change, adds to the speed at which the oil turns black.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

When I had the 300CD, the oil would turn black after about 5 minutes of the engine running...