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Oil
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Jtn190D Offline
MERCEDES DIESEL POWER!
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Post: #1
Oil
Hi all what kind of oil do you all use, or what kind should i use. Thanks

87 190D 2.5 Turbo. 230,000 and still going strong!
07-15-2009 01:23 PM
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MB TECH Offline
Everything must be modified.
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Location: Madison, MS
Post: #2
RE: Oil
I use Rotella 15w40 in the summer and when I used to live in Wisconsin I ran mobil 5w40 ESP formula in the winter

These are what Mercedes Benz recommends from the factory.

1978 300D N/A
Mechanical: Rapid glow plug kit. Engine, Trans, and rear diff from 83 300TDT. GT2359 Turbo, Air to Air front mount intercooler.
Cosmetic: Exterior color changed to silver, Interior dyed black, modified 18" 219 wheels, engine and engine bay painted to match exterior.

1960 220SE
111 chassis undergoing full restoration. Body work in progress. Merging with a 1996 S500 (119 engine, 722.6 trans, and both subframes)

1999 SLK230 Kompressor (wife's ride)
Nothing yet.........
07-15-2009 01:51 PM
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ForcedInduction Offline
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Post: #3
RE: Oil
I use Mobil Delvac1 5W40 synthetic year round.

Its not good to constantly switch between oil types.

http://www.whnet.com/4x4/oil.html
07-15-2009 03:05 PM
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winmutt Offline
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Post: #4
RE: Oil
I use mobil1 in my car year round and rotellat in the wifes.

Interestingly enough the TD had 20w50 for most of its life, from the dealer up until the 90s.

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
07-15-2009 03:35 PM
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MB TECH Offline
Everything must be modified.
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Posts: 178
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Location: Madison, MS
Post: #5
RE: Oil
well 5w40 is pretty thin to be running in the summer time, and good luck getting that motor to crank in -40 degrees with 15w40. My car has had the oil switched from winter to summer blends all 260 000 miles and no problems. Ive heard about the myth of switching oils and never actually seen a problem from it. If anyone has I would sure be interested in hearing about it.

1978 300D N/A
Mechanical: Rapid glow plug kit. Engine, Trans, and rear diff from 83 300TDT. GT2359 Turbo, Air to Air front mount intercooler.
Cosmetic: Exterior color changed to silver, Interior dyed black, modified 18" 219 wheels, engine and engine bay painted to match exterior.

1960 220SE
111 chassis undergoing full restoration. Body work in progress. Merging with a 1996 S500 (119 engine, 722.6 trans, and both subframes)

1999 SLK230 Kompressor (wife's ride)
Nothing yet.........
07-15-2009 09:15 PM
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ForcedInduction Offline
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Post: #6
RE: Oil
(07-15-2009 09:15 PM)MB TECH Wrote:  well 5w40 is pretty thin to be running in the summer time

Not its not. Its no different/worse than running 20W50 in the winter.
07-15-2009 09:39 PM
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willbhere4u Offline
do the interns get glocks?
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Post: #7
RE: Oil
I run 15w40 rotellat year round with no problems

1987 300SDL soon to be 6spd______6cyl 6spd
1985 300td euro 5spd wagon ______5cyl 5spd
1980 240D 4spd Rajay turbo kit_____4cyl 4spd
1964 220S
07-15-2009 10:38 PM
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winmutt Offline
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Post: #8
RE: Oil
There are a handful of days in winter when its to cold for 15w40.

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
07-16-2009 07:17 AM
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dropnosky Offline
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Post: #9
RE: Oil
(07-15-2009 09:15 PM)MB TECH Wrote:  well 5w40 is pretty thin to be running in the summer time, and good luck getting that motor to crank in -40 degrees with 15w40. My car has had the oil switched from winter to summer blends all 260 000 miles and no problems. Ive heard about the myth of switching oils and never actually seen a problem from it. If anyone has I would sure be interested in hearing about it.

heres a pretty good explanation- http://www.upmpg.com/tech_articles/motoroil_viscosity/

I moved to 5W-40 from 15W-40 last year and it had a major impact in cold weather. I was able to start first crank below 5 degree F with the 5W with no block heater, vs the 15W which was a major problem starting. I would say 5W-40 is the best choice year round if you have decently cold winters. Both oils have the same viscosity at operating temps.

1974 240D 4-speed
1989 Chevy Astro
1987 VW Quantum wagon 5-speed
07-16-2009 08:17 AM
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MB TECH Offline
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Posts: 178
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Location: Madison, MS
Post: #10
RE: Oil
Well that makes sense, maybe I will try to stick to just the 5w40 then. I have just been in the habit for so long I never really thought about it on an in depth level. Thanks for the responses, but still has anyone ever experienced problems from switching oils or no? I am curious to see what part of the engine that affects.

1978 300D N/A
Mechanical: Rapid glow plug kit. Engine, Trans, and rear diff from 83 300TDT. GT2359 Turbo, Air to Air front mount intercooler.
Cosmetic: Exterior color changed to silver, Interior dyed black, modified 18" 219 wheels, engine and engine bay painted to match exterior.

1960 220SE
111 chassis undergoing full restoration. Body work in progress. Merging with a 1996 S500 (119 engine, 722.6 trans, and both subframes)

1999 SLK230 Kompressor (wife's ride)
Nothing yet.........
07-16-2009 10:57 PM
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ForcedInduction Offline
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Post: #11
RE: Oil
(07-16-2009 10:57 PM)MB TECH Wrote:  I am curious to see what part of the engine that affects.

The insides will stay cleaner since there is no dino oil to build up sludge.
07-17-2009 12:09 AM
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Jtn190D Offline
MERCEDES DIESEL POWER!
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Location: If I knew I would tell you!
Post: #12
RE: Oil
It's starting to get cold around here it gets down to 10 F most nights the other morning my car barely started will 5w40 help a lot in cold starting? i have no block heater so what ever helps would be nice! Just got my new glow plugs and getting my injectors rebuilt right now so hopefully that will help a lot? Any thoughts?

87 190D 2.5 Turbo. 230,000 and still going strong!
(This post was last modified: 12-14-2009 11:22 AM by Jtn190D.)
12-14-2009 11:21 AM
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DeliveryValve Offline
Superturbo
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Post: #13
RE: Oil
(12-14-2009 11:21 AM)Jtn190D Wrote:  It's starting to get cold around here it gets down to 10 F most nights the other morning my car barely started will 5w40 help a lot in cold starting? i have no block heater so what ever helps would be nice! Just got my new glow plugs and getting my injectors rebuilt right now so hopefully that will help a lot? Any thoughts?

Absolutely. But make sure it has a "C" diesel rating, i.e. CJ-4, CI-4, CH-4, CG-4, CF-2, and CF, and not a 5w40 meant for gassers. A diesel 5w40 oil will most likely be synthetic.

Gota love Mercedes Diesels!



.
12-14-2009 04:25 PM
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Jtn190D Offline
MERCEDES DIESEL POWER!
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Posts: 189
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Location: If I knew I would tell you!
Post: #14
RE: Oil
Any of you guys heard of Total or Redline oils? are they any good?

87 190D 2.5 Turbo. 230,000 and still going strong!
(This post was last modified: 12-18-2009 03:55 PM by Jtn190D.)
12-18-2009 03:54 PM
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W116Lorinser Offline
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Post: #15
RE: Oil
amsoil 5w-40 fuly syntetic diesel oil is great... just put in today and cars running much smooter/quiter and less smoke on heavy acceleration.
12-18-2009 05:52 PM
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cell Offline
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Post: #16
RE: Oil
Just out of curiosity, has anyone tried the wal-mart oil? Supertech 15w40?
01-05-2010 02:21 AM
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DeliveryValve Offline
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Post: #17
RE: Oil
(12-18-2009 03:54 PM)Jtn190D Wrote:  Any of you guys heard of Total or Redline oils? are they any good?


Total is very popular overseas makes good motor oil, they used to be called Elf. I've used Total on my other vehicles with good results.


Redline also makes a good synthetic for gassers.. for diesels, not sure.



.
(01-05-2010 02:21 AM)cell Wrote:  Just out of curiosity, has anyone tried the wal-mart oil? Supertech 15w40?

No experience with the 15w40.
But I have the Supertech transmission fluid in my 300D right now for the past 30,000 miles and been shifting great.

I've used the 10w30 oil on a 1994 Volvo 850 for a few years before getting rid of it and my guess it was fine.


.

Gota love Mercedes Diesels!



.
(This post was last modified: 01-05-2010 02:37 AM by DeliveryValve.)
01-05-2010 02:30 AM
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cell Offline
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Post: #18
RE: Oil
(01-05-2010 02:21 AM)cell Wrote:  Just out of curiosity, has anyone tried the wal-mart oil? Supertech 15w40?


I did a bit more reading about this on some oil forums. It looks like the actual supplier of this oil is unpredictable (changes with time and is different regionally). So I guess that makes it hard to have any meaningful disussion about this oil.
01-05-2010 03:06 PM
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Gurkha Offline
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Post: #19
RE: Oil
Delo 400 or Delvac MX.
01-25-2010 06:08 AM
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nrkmann Offline
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Post: #20
RE: Oil
MB dealer uses M1 0W-40 year round. Look at the Marshal Booth (Dr. Diesel) diesel forum at MBCA (http://mbca.cartama.net/) for discussions on oil, base stocks, SAE certifications, etc.
Personally uses M1 0W-40, change oil every 25k miles, change filter every 10K miles in all my cars.

1986 300SDL
1964 230SL
05-23-2010 03:42 PM
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ForcedInduction Offline
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Post: #21
RE: Oil
(05-23-2010 03:42 PM)nrkmann Wrote:  MB dealer uses M1 0W-40 year round.
That weight is not suitable for non-CDI engines due to its low viscosity. 5W40 is whats appropriate to use and it meets far more diesel API standards while being better able to disperse soot.

Quote:change oil every 25k miles
Thats far too long for any car engine. Have you actually done a UOA to determine if its safe? By 16k miles the soot accumulation will be approaching the limits, sooner if you do any city driving.
Even modern long-haul semis don't exceed 30k mile OCI.
(This post was last modified: 05-24-2010 09:56 AM by ForcedInduction.)
05-24-2010 09:48 AM
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nrkmann Offline
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Post: #22
RE: Oil
I have used oil analysis and spent many hours with SAE engineers researching this issue and come to the conclusion that somewhere between 25-50K miles was where oil becomes contaminated. I went with the low end and have ran several vehicles 300+K miles with this regime (25K oil change and 10K filter change) including 15 years living in Germany and running cars routinely at 100+mph. All have had very low oil usage and ran perfectly when sold.
I don't know about long-hall vehicles but in the Army, where I spent 39 years, we only changed oil based on oil analysis and many vehicles and aircraft went thousands of hours without an oil change, just filters.
Currently I have 230K on my MB. It does not smoke, uses about one quart every 5-7K miles. I for one, cannot argue with success. Do the same with my other cars and trucks... this is a MB forum.
I use 0W40 because it is the lightest oil approved by MB... see below. We could get into a whole engineering discussion that would show the the shear strength of 0W40 far exceeds the pressures in any engine, and has the heat resistance to work in turbine engines at 10-20 times the temperature of a compression engine without sludging.
I have saved enough money over the years that if an engine failed and I bought new from the factory, I would still be money ahead.

regards, nrk


From the list of MB approved oils for my 300SDL.

Mobil 1 SuperSyn European Car Formula 0W-40 / Mobil 1 Turbo Diesel 0W-40 (USA)

MB spec 229.31
Mobil 1 ESP 0W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil 1 ESP Formula 5W-30 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil 1 ESP Formula M 5W-30 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil Super 3000 XE 5W-30 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil Syst S Special V 5W-30 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA

MB spec 229.3
Mobil 1 0W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil 1 5W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil 1 5W-50 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil 1 Arctic 0W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil 1 Formula M 5W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil 1 New Life 0W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil 1 Peak Life 5W-50 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil 1 Turbo Diesel 0W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil 1 Turbo Diesel 5W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil Formula X2 5W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil SHC Formula MB 5W-30 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil Special X 5W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil Super 3000 Formula M 5W-30 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil Super 3000 Formula M 5W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil Super 3000 X1 5W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil Super 3000 X1 Diesel 5W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil Super 3000 X2 5W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil Super 3000 X2 Turbo Diesel 5W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil Synt S 5W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil Synt S Turbo Diesel 5W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
Mobil Syst S 5W-40 x Exxon Mobil Corporation, FAIRFAX, Virginia/USA
05-24-2010 10:05 PM
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winmutt Offline
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Post: #23
RE: Oil
I've avoided the 0w40 because of the postings on the VW boards about their test results. Any idea whats the approved list on the 617? I know that 20w50 was recommended for a long time (probably still is?).

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
05-24-2010 10:35 PM
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