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-   -   M1 0w-40 oil is OK for M104? (http://www.peachparts.com/shopforum/showthread.php?t=403868)

Maxbumpo 02-24-2020 11:50 AM

M1 0w-40 oil is OK for M104?
 
Pardon the newby question. I bought a cheap 1994 E320 wagon, I think she is ready to enter the daily driver rotation, but I'd like to change all the fluids first.


Can I put Mobil 1 0w-40 in this engine?

Maxbumpo 02-24-2020 11:51 AM

Oh yeah, she has about 190k miles.

Jayare 02-24-2020 01:26 PM

I'd keep it Dino fluid. IIRC the car left the factory with 5/40 delo in it. The pure synthetic isn't going to do much with an old motor.


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Sugar Bear 02-24-2020 06:23 PM

No to the 0W-40 in my opinion. In FL I'd use a 15W-40 C rated diesel dino oil.

Good luck!!!

speednjay 02-24-2020 06:49 PM

I use 0-40 m1 and it seems to run ok

party 02-24-2020 07:46 PM

https://www.bobistheoilguy.com/motor-oil-101/

Ferdman 02-25-2020 11:21 AM

Max, recommend Mobil 1 15W50 in that vintage engine. That's what I have used in our 1995 E320 for the past 20 years. Oil changes every 7,500 miles.

Sugar Bear 02-25-2020 01:41 PM

I agree with Ferdman if you wish to use synthetic that is a good choice. The dino @15W-40 probably has more ZDDP for a flat sliding camshaft surface but it's not a synthetic.

speednjay 02-25-2020 04:13 PM

If I remember right the m1 o-40 was the only one that had Mercedes approved specs on the label


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