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Old 12-31-2004, 06:40 PM
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Join Date: May 2004
Location: south east Va
Posts: 12
Chevron Delo 400 in all 4 of my diesels, 1 car 2 trucks and a boat
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Old 12-31-2004, 07:02 PM
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Join Date: Sep 2004
Location: Kittrell, NC
Posts: 681
Originally Posted by rickjordan
I'd say it's ok to switch. That is, as long as your engine doesn't currently have any oil leaks. From what I have read, "DINO" oil has something in it that makes gaskets/seal swell. Synthetic oil doesn't have this, so if your engine is leaking with convential "dino" oil, then the theory is that the leak(s) will get worse shortly after you switch to synthetic.
I use shell rotella 15w-40. Consume 1qt in 3000mi. Tried Mobil Delvac and oil consumption was much worse. Two Indep. mercedes mechanics say use Castol 20w-50. Leith Mercedes dealer in Raleigh, NC says to stick with Rotella. I have 256k on the odo. Other indep. mechs have told me use Rotella. One did confirm what Rick said - switching to synthetic at this mileage would worsen leaks.
1982 300SD Light Blue
2002 Honda Accord SE
1974 Toro Wheel Horse Tractor
2000 Toyota Tundra Pickup
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Old 12-31-2004, 07:06 PM
Carleton Hughes's Avatar
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Join Date: Dec 2004
Posts: 1,611
Rotella 15w40 in the oil burner,210k
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Old 12-31-2004, 07:31 PM
Jimmy Joe's Avatar
peace out
Join Date: May 2004
Location: California central coast
Posts: 1,004
Delo 400
$38 for 6 gallons at Costco today.
Think Alternative Energy!
300CD '80 (now gone but not forgotten...)
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Old 12-31-2004, 08:49 PM
Veloce300DT's Avatar
Join Date: Dec 2002
Location: Sacramento-Bay Area Corridor
Posts: 1,110
Castrol GTX 10w40
Rotella T when I can find it, which has proved to be harder than it should be in my area.

1995 E420
1992 BMW 525i
1984 300D Turbo sold
1993 Volvo 244 sold
1995 Volvo 944T R.I.P!

"The details are not details. They make the product."
-Charles Eames
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Old 01-01-2005, 10:52 AM
n4xft's Avatar
diesel dave
Join Date: May 2001
Location: West North Carolina
Posts: 15
Rotella-T in both cars, 300D and300Sd. 3,000 mile interval. Also the farm tractor.
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Old 01-01-2005, 10:55 AM
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Join Date: Jul 2004
Location: Toronto, ON (Canada)
Posts: 135
Mobil 1 15W50 in the 300D. Don't need to add any oil in between changes. Doesn't burn or leak any.
1991 MB 300D 2.5 Turbo (207000km) (now gone)
1993 Audi 100 CS Quattro (300000km)
1999 VW Jetta TDI (290000km)
2002 Audi A6 3.0 Quattro (150000km)
2005 MB E320 CDI (34000km)
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Old 01-01-2005, 08:56 PM
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Join Date: Jul 2004
Posts: 41
Mobile 1 15W50 300SDL - 172,000
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Old 01-01-2005, 09:19 PM
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Join Date: Apr 2002
Location: Bellevue, WA USA
Posts: 84
Shell Rotella Synthetic 5W-40. Changed every 3000 miles, occasionally up to 4000 if I can't get to it right away.
1983 240D 4 sp manual 260K
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Old 01-02-2005, 09:44 PM
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Join Date: Oct 2002
Location: West Virginia
Posts: 193
Rotella in the SD and the 190D.
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Old 01-02-2005, 09:59 PM
85drtysthbenz's Avatar
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Join Date: Nov 2003
Location: Florida
Posts: 387
just changed my oil today, with Rotella 15w-40, as always
1985 300SD 192,000miles...Astral silver/ Grey MbTex

1983 300D 194,000miles...White/Tan newest addiction
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Old 02-11-2005, 11:11 PM
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Join Date: Jan 2003
Location: Eastern NC
Posts: 329
Rotella 15w40 in everythng and a little lucas oil additive in the ones that have been abused.
1968 Torino GT fastback
1969 Ranchero
1970 Duetz Tractor Air-cooled diesel-rearend needed 4005 or 6
1974 240d 4-speed
1976 240d fresh paint
1978 300cd fresh paint and new rearwindshield rubber
1980 240d 4-speed-sold
1981 300d
1990 6.2 Suburban 194k-getting a 6.5 turbo
2002 Grasshopper Mower diesel
2008 Duramax Silverado
2015 VW Passat TDI
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Old 02-11-2005, 11:37 PM
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Join Date: Jun 2001
Location: Northern Calif. (Fairfield Area)
Posts: 2,225
I can't believe this old oil thread is still going. I just checked my post which said I have 305k on my wagon. I now have 345k on the same engine. You guys with all the extra discretionary income can keep feeding the corporate ads by buying into the tauted special oils, but I will continue to buy any name brand 20/50 oil on sale. Although my 83 300TDT with 345k on the clock doesn't burn any oil, has plenty of power, and fires right up on cold morns, there is a chance that by not using expensive special oil I may not reach 500k. I guess I will just have to take my chances. The other drawback to using cheap oil is that I have nothing to brag or talk about at cocktail parties. I guess that is why I never get invited. These are just the ramblings of a 30 year MB mechanic with millions of miles on MBs if you include client cars with trouble free miles. By the way MB says you should not go to 10 weight on turbos because of the high thermal stresses.

Auto Zentral Ltd.

Last edited by autozen; 02-11-2005 at 11:44 PM.
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Old 02-11-2005, 11:55 PM
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Join Date: Aug 1999
Location: Cincinnati, Ohio
Posts: 1,935
I have always used Agip lubricants in my own cars and at my shop. For those of you not familiar with Agip, they are a very old Italian-based petroleum company and have held the mark of factory fill from manufacturers such as Ferrari and Lamborghini for over 50 years. Good stuff.
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Old 02-12-2005, 12:24 PM
superbeast1098's Avatar
Join Date: Jan 2005
Location: Atlanta, Ga
Posts: 210
I use

Delo 400 in my 83 300D. I have never had any problems with it.

My brother usually uses either Delo 400 or Rotella T in his 82 300SD, again with no problems with either oil....
1983 Mercedes 300D
Atlanta, GA
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