Was wanting to question at what interval you might be changing your engine oil? If you are using like Mobil 1 5W-40 turbo diesel truck oil in your Mercedes Benz. Are you still doing 3K as the time frame???

I do 4k, it depends on the engine. If you're running a 4cyl 616 (240) or 5cyl 617 (300) engine 4-5k is the highest you will want to run it due to high soot levels produced by those engines.

On the newer engines: 603 6-cyl, 602 5-cyl, 601 4-cyl and the more recent 606 6-cyl engines you can probably go 5-7k without worrying about it as they run cleaner and make less soot.

Shell makes a lower cost synthetic (Shell Rotella-T 5w40 Synthetic) that can be used also, more practical if changing the oil more often. I have decided to use that oil and change it every 4k instead of the Mobil 1 every 5k. Still saves a little $$, and its likely better for the engine. On the newer engines where you can run the oil 6-7k, the Mobil 1 might be a better choice as its a slightly better oil.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

The newer cars do close to 10k mile intervals. Always a good idea to validate your interval via UOA to make sure you're not over-working the oil.

I think the newest diesels can go 13k - 15k miles when running the proper oils.

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1998 W210 diesel (wiped out by a texter)
Baum spring compressor "for rent"

Yeah, my oil turns dark again, seems like almost immediately after I change it. Compared to my wife's gasser Subaru, which stays nice and clean for hundreds of miles.

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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1982 300D, anthracite grey, 260k miles, Greasecar
1999 E300D, black, 160k miles, Greasecar
2010 Honda Insight Hybrid
http://www.chuckwyatt.com
http://www.wordimpressive.com

I have gone full circle on oil type and change intervals based on some recent oil tests reading I have done, I am back to using Delo 400 and at 3000 miles.

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1980 300TD-T (82 Turbo and Trans) 159,000 Miles "Jackie-O"
1983 300SD 272,000 Miles "Aristotle"
1987 Jeep Wagoneer Limited - keeps the MB's off the ice and out of the snow
1994 BMW 530it

Go by whatever the owners manual recommends for your car.

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~Michael S.~
Past cars:

1986 300SDL
1987 300SDL
1982 240D
1982 300SD


Current:

1987 300SDL

2.5-4K for dino and 5-8k for synthetic on the 617.

I guess I am paranoid. 4k-ish on Rotella Synthetic for all our cars. Our cars do a majority of their driving in the city though, and that makes a difference. Probably close to 85% for both of my dad's cars....and about 65% for mine.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

I change my oil/filter on an approximate 4000k mile interval. I'm using Mobil Delvac, it seems to hold better pressure at idle than Rotella. But in the grand scheme of things,(relatively speaking of course) oil is cheap and it's your engine's best friend.

Wayne

3,000
Castrol Techion for Diesel

always used in my FS 1982 300CD running on the Cars for sale forum......5,500.

....

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'87 924S
'81 280SEL

Sold ->

81 300SD -
93 300E w/ 3.2
85 300D-
79 300SD
82 300CD
83 300CD - CA
87 190E 5 spd
87 Porsche 924S

"..I'll take a simple "C" to "G" and feel brand new about it..."

Yes! Another oil thread!!!!!!!!! How long before it gets nasty? FWIW, I change my 240 every 3k on Rotella dino.

Scott

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Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)

We can liven things up by adding oil filters to the oil thread

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1980 300TD-T (82 Turbo and Trans) 159,000 Miles "Jackie-O"
1983 300SD 272,000 Miles "Aristotle"
1987 Jeep Wagoneer Limited - keeps the MB's off the ice and out of the snow
1994 BMW 530it

I go 4000 miles or six months, whichever comes first with Delo 400 on all my vehicles except for the Accord on which I use M-1 and change every 5000 miles. For my Honda RC45 bike, its Delo 400 at 2500 miles.

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99 Gurkha with OM616 IDI turbo

2015 Gurkha with OM616 DI turbo

2014 Rexton W with OM612 VGT

Stupid bugs and dirt and seeds and other foreign material!

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Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)

Does everyone buy their oil at the local parts store? If not, where?

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1985 300SD - 167k miles
1992 F350 7.3 (Soon to be converted to 2 tank Veggy/WMO)