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#1
09-12-2005, 02:05 PM
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Engine oil black after only 1000 miles
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 
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#2
09-12-2005, 02:16 PM
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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.
__________________
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) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
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#3
09-12-2005, 02:16 PM
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 It's normal, usually happens alot sooner than 1000 miles!READ ALL OF THE THREADS..........RESEARCH PLEASE 
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#4
09-12-2005, 02:39 PM
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That's not bad. My oil turns black right away.
Danny
__________________
1984 300SD Turbo Diesel 150,000 miles OBK member #23 (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination
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#5
09-12-2005, 02:44 PM
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Once you go Black
Hell mine is black after I start it up immediately after an oil change....
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#7
09-12-2005, 02:51 PM
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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.
__________________
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
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#8
09-12-2005, 02:57 PM
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When I had the 300CD, the oil would turn black after about 5 minutes of the engine running...
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#9
09-12-2005, 02:59 PM
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Mine will be black if I just drive around the block!!!
I bought the car from a dealer who insisted thay had changed the oil. But since the oil was black I did not believe them and changed it myself. The next day it was black again.
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#10
09-12-2005, 04:13 PM
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.. and the oil is doing exactly what it's supposed to: keep the soot in suspension until the big chonks can get filtered out.
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#11
09-12-2005, 05:37 PM
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Mine stays golden color as long as I drain out all the old oil and change filter and pour it in the engine. This is the dipstick reading tho. There would be little streaks of black in it sometimes. Turn on the engine and let it idle for a min or so and forget it. Black all over again.
__________________
01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow
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#12
09-12-2005, 06:14 PM
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seconds not miles
My Mobil 1 usually turns black after about 1000 minutes, not miles. Now, that is, 1000 minutes of driving, idleing, parked in garage. It must be really doing its job.
It doesn't take long.
__________________
PagodaLOVER 1967 230SL, manual 1959 180D, manual
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