Yes it is CJ-4 spec.. ppl DELVAC is the diesel rated oil it's just 10w30 vs 15w40 for extremely cold temps and cars/tractors made in japan and other places not stuck in 1920's heavy weight oil restrictions

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2004 Infiniti G35 3.5L 6mt Coupe 73K miles 25.6mpg ytd
2001 Green Audi TT 225 AWD Roadster 71K 6sp 30.9mpg >>STOLEN<<
1982 300D Turbo 231K 120hp? 28.1mpg YTD

How about mobile Super SYN Turbodiesel Oil i think its 5 W40, what do you guys think, its $26 per gal

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Current Garage
2008 Mercedes GL320 CDI 188k mi Repair/Work in progress
1994 S350 160k mi Garage Queen & prepping for repairs
2005 E320 CDI 203k mi Healthy & Daily Driver
1994 S350 357k mi Retried as parts car
1984 300TD 214k mi Blown OM617 Poss OM603 Swap??

Sold
1987 300SDL 200K+
1994 S320 181K mi
2008 E320 Bluetec 127k mi
1999 S420 130K mi
1980 240D 360k mi
15+ Others that has come, stay and gone

GONE, BUT NOT FORGOTTEN
1995 E320 SE 220k mi
1984 300SD 350k mi

Mobil 1 Turbo Diesel Truck 5W-40

That is a great oil too and available at Walmart for $22 I think.

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1993 W124 300D 2.5L Turbo, OM602.962
2000 Chevrolet Cavalier, 2.4L DOHC
2002 Ford Explorer, 4.0L SOHC
2005 Toyota Prius, 1.5L

http://www.fuelly.com/sig-us/40601.png

That's what I use too. Unfortunately, it's only available at some of the walmarts, some of the time.

About 10 years ago Mercedes-Benz quit putting out a list of approved motor oils. The Star magazine of the Mercedes-Benz Club of America (MBCA) used to publish the list when it was used. Mobil Delvac 1300 15W-40 was listed as a recommended oil for diesel engines, turbo and non-turbo; note it is 15W-40. Also M-B did not say the list was all inclusive, it was a list of oils they tested and approved. I have been correctly using this oil for many years, however I would not be opposed to switching to a newer formulation if there were a better one.

Jim W.

So bottom line is I can mix the two for my moderate climatic temperature needs here in North Carolina?

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1993 W124 300D 2.5L Turbo, OM602.962
2000 Chevrolet Cavalier, 2.4L DOHC
2002 Ford Explorer, 4.0L SOHC
2005 Toyota Prius, 1.5L

http://www.fuelly.com/sig-us/40601.png

I would not mix the two. Delvac 1300 15W-40 would serve you well all by itself, just as it does up here in Wisconsin.

Jim W.