There seems to be several types, I think 15w40 marine diesel oil looks good for 175k - 200k mile 617. What says the pros?

There are some things that just seem to have no consensus even after endless, sometimes heated, debate. These include

Oil
Coolant
Transmission Fluid
Air filters (e.g. K&N)
Oil filters
Refrigerant
Tires
Fuel

As long as the oil meets the basic specs of MB, it's probably more important to keep it clean with regular changes than to fret over a particular brand.

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Current Stable

• 380SL (diesel)
• Corvette C5
• Manx
• Baja Bug
• F350 Powerstroke
• Auburn Boattail Speedster replica

I use the marine 15W40

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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"

Marine it is, then. I will report back. I can get it as a preferred customer/dealer type for 36 bucks a gallon, not much more than autozone shelf synthetic. The additive package with amsoil looks pretty impressive. I'm going to use it in my Cummins 6BTA's in the boat and my Yanmar powered generator when they get broken in a bit.

I tried 5w40 blend once and she leaked like a beaatch.

I saw some european formula Amsoil stuff today.... it said it was specific for Mercedes and BMW. 5W 40. I did'nt have time to check if it was for diesel, but I think it was. $12.49 for 946ml. x8 would be over $100.00 just for the oil.

I saw that too on their website, mechanic friend that just did a major teardown on a pair of 2 stroke Detroit diesels, 671's that have used amsoil 15w 40 forever and he said the inside of the engine was in unexpectedly great shape and wear was extremely minimal. I'm going to order the oil in morning, pick up at distributor and get Mann filters, etc. and do the change tomorrow. I don't know how the guy afforded the amsoil for the detroits, they hold almost 6 gal each.

Now, I did see that the amsoil diesel additive was not rated so highly compared to the optimax stuff.

I use the 15- w40 Marine Diesel also.

I pick it up at the warehouse in Portland, Or. when we are up there. Iam a preferred customer, get for the dealer price. just picked up 4 gal last week.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

Just ordered the goods, it was only 27.75 or so a gallon for the marine 15w40

I also ordered cetane booster.

Checked my invoice, paid $26.40 a gallon or $6.60 qt.
Nice picking it up at the warehouse, no shipping and no sales tax.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

Charlie

We may have inadvertently discovered the one thing that's cheaper in California!

I agree with the Marine diesel oil because it has high levels of phosphorus and zinc, which is necessary to keep older technology engines from premature wear (though you can buy the zinc and phosphorus additives separately and put it in the oil of your choice). The Amsoil diesel oil for 2007 and newer engines doesn't have the necessary zinc and phosphorus levels, so definitely go with the Marine version.

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Stop paying for animal enslavement, cruelty, and slaughter. Save your health and the planet. Go vegan! I did 18 years ago. https://challenge22.com/

DON'T MESS WITH MY MERCEDES!


1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles

I use Amsoil's 100:1, two cycle oil in my power saws and weed eaters, great stuff, my equipment loves it,no more smoking.

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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"

I am using the Amsoil 15-40 marine diesel also

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1977 240D turbo

SWEPCO 15 40 blows them all away inho.

Never heard of SWEPCO, but looked and it looked interesting.

I changed oil today with new filter and o rings.I sure do like those harbor freight boxes of disposable gloves!! Ran back and forth to the coast tonite and she ran great, seemed quieter.