Mobil Recommends 0W-40 for my '93 300D
 

Is this right?

I am still looking into this but I noticed somewhere that their Truck and SUV oil is actually 10W30 now.

Has something changed?

http://www.mobiloil.com/usa-english/motoroil/car_care/which_oil/WhichOilManualResults.aspx?option=2

I'll answer my own question:

Apparently this is correct.

I just read somewhere that the diesel Sprinters use the Mobil 1 0W-40.

Well, it also says M1 0W-40 for a W123 240D (sure sounds like a shotgun approach for their oil selection system)


Personally, I'd side with a 5W-40 diesel rated synthetic, or a 15W-40 diesel rated conventional. Maybe slightly thicker in warmer climates...

Last I saw, the turbodiesel truck M1 was 5W-40

just use this mobil one....

5W-40, first choice....

http://www.mobiloil.com/USA-English/MotorOil/Oils/Mobil_1_Turbo_Diesel_Truck_5W-40.aspx

15W-50, second choice

http://www.mobiloil.com/USA-English/MotorOil/Oils/Mobil_1_15W-50_.aspx


The 0-40 version, is what "Mercedes" recommends (what you will probably be told to use if you visit a Mercedes dealer.

...... my personal opinion, is dont' use that one in your diesel....
Use 0-40 in your late model Euro Gasser.

The 0w40 is too thin for the diesels....it made one of our SD's noisier when we ran it on that. They like the 5w40 diesel oil much better....just use that.

I agree, I'll stick with 5W40 for my 61x engines. The 0W40 might be appropriate for the newer engines.

Sounds like I'll be sticking with the M1 Truck and SUV 5W-40 I am using right now.

If I get a good deal I might try the Valvoline Premium Blue synthetic for diesels.

Apparently the M1 0W-40 meets more requirements than any other oil ever has.

But I agree that it is probably a bit too advanced for my '93 that has an engine that was developed several years before then.

Maybe they are worried about the cold. The 0 refers to the low temp viscosity. In theory it should be just as viscous at high temps as say 15w40. I think in reality you may be better off with 5w40 or 10w40 unless you are in Alaska !! i-osprey, I would have thought that in the south you would have been using 10w40 or 15w40. Its not that cold there !
Often the oil companies dont bother testing every oil against every spec unless they want to get more $$ for it.
I know some of the latest little gassers from Korea use 5w50 oil all year as they have very small oil galleries in the motor and so need the oil to flow well at low temps.

They told me to use it in my 93 also. But I went with the recommendations I got in this forum to use M1 5w40 TDT for winter use. I plan to continue the use of Delvac 1300 for non winter seasons.

Btw, they also recommended M1 15w50 for non winter use. Apparently it is popular with many owners of older MB diesels like ours.

Oldwolf,
I was using 20w60 in my old 300d before I retired it (800k miles). it had never been in pieces & was starting to get a little smokey & rattly when warm. It still held 2 bar oil press at idle.
I have used Delvac 1300 in a dozer & a scraper, its good stuff in extream heat.
I only use Cat oil in my new ones, Cat requires it. Its not that expensive. I may try it one day in the Mercs.

I'm not sure if we can get a diesel oil that heavy here in the US Layback.

It was sold by Gulf Western, duel purpose oil, CF rated at the time, I think they are up to CJ now here. I think it was blended in NewZealand. We get a bit of stuff from there over here.

I think the 0 refers to pumping ability, if I'm not mistaken, so, like someone already said, it should still be thick enough to not notice a difference between 5. That being said, I wouldn't bother using it. If you plan on moving/traveling to mid/northern Canada, Alaska or Greenland, it might be worth the investment, but Continental U.S. and Southern Canada, you should be alright with 5 in the winter, 15 in the summer. I'd avoid 10 mostly because it seems like only the garbage brands offer it. The good ones just seem to skip it.

I'd like to find some of that here!

X2
 

Iosprey,

Mobil1 15W50 is a different base stock formulation than
the "Truck + SUV" (Or DELVAC 1 ,which is what the T+SUV is )

The 5W40 is the LEAST on the Viscosity scale you should use...
NO 0W40,NO 10W30,NO 0W20 !

EDIT: Exxon/Mobil is ONLY interested in selling you Oil (If you ask them)
They don't care if it's used in your current 602.962...
OR the replacement you have to buy from Metric or Noell's,
Cause the Damn Viscosity was wrong!