Oil change

Frd guy · Apr 27, 2009

Can someone suggest what oil I should use for my 3 cylinder Diesel...1975ish......weight... brand etc?

Brandon Frazier · Apr 27, 2009

I prefer Shell - rotella 15w40 in all my diesel engines.

RayP(MI) · Apr 27, 2009

Read the label. Get something that is rated for diesel service. Many auto rated oils are no longer diesel appropriate.

RodinNS · Apr 27, 2009

If it's a Ford engine, then use diesel rated 15W40. If it's one of the jap ISM engines, use a diesel rated 10W30...

Rod

flying belgian · Apr 27, 2009

I will second the rotella.

TomTex · Apr 27, 2009

1. Shell Rotella 15W40 Diesel oil
2. Mobil Delvac 1300 15W40 Diesel oil
3. Chevron Delo 15W40 Diesel oil
Tom

RobMD · Apr 27, 2009

R O T E L L A T 15-40.

Even wally world carries it in one gallon bottles.

'nuff said.

Oldmax · Apr 27, 2009

I see no reason to change when you got a good thing going. I use Rotella also. In my 96 model 3 Cyl.

Cenexguy · Apr 27, 2009

Whatever oil you use check for the CJ-4 Spec. This is the most up to date oil Spec designed for deisel engines running on the ULSD or ultra low sulfer diesel. The old Spec is CI or CI4+ and these don't have what it takes to handle the lesser amonts of sulfer in the fuel. Look at Cenex's TMS 15w40 product. A CJ-4 product.

buickanddeere · Apr 28, 2009

Just in case, in the remote chance the engine is a two stroke Detroit Diesel since no brand or model info is offered.
The engine oil MUST be a low ash CF-2 rated diesel oil.

RodinNS · Apr 28, 2009

The 4500's engine which he is talking about was designed to run on CC or CD spec oil, not CJ-4. As far as I'm concerned it will run well enough on any of them.
The use of low sulfur fuel has no bearing on what oil you use in an old engine.

The ONLY purpose of this new spec oil is for NEW engines which have Tier III emission systems, regeneration systems and particulate filters installed. These systems are designed to run on ULSD and will plug if you use high sulfur or low sulfur diesel rather than ULSD... and the change in the oil was due to the ZDDP additive (zinc) in the older spec oil.
ZDDP will cause problems with the emission systems on these engines, thus it had to be removed from the oil... thus you have a new spec oil which is free of, or has severly reduced amounts of ZDDP.

Some would actually argue that this lack of ZDDP is causing the failure of flat tappet cams in older engines... though I'm not convinced of that. It seems hard to find an older spec oil out there today, so I tend to think the newer stuff is intended for use in older engines. Mabey some day I'll look differently on it....

Rod

Steven f/AZ · Apr 28, 2009

(quoted from post at 18:49:12 04/27/09) 1. Shell Rotella 15W40 Diesel oil
2. Mobil Delvac 1300 15W40 Diesel oil
3. Chevron Delo 15W40 Diesel oil
Tom

The only thing I can add to this list that we have used is John Deere 15w-40 diesel rated oil and CNH 15w-40... We actually run the CNH 15w-40 in pretty much everything from small gas engines, old Farmalls, farm trucks, and the diesel tractors and combine with no ill effects in thousands upon thousands of hours of operation.

Can't get my brother to switch away from his Rotella 15w-40 in his Cummins diesel pickups, though...

Oil change

Frd guy

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Brandon Frazier

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RayP(MI)

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RodinNS

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flying belgian

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TomTex

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RobMD

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Oldmax

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Cenexguy

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buickanddeere

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RodinNS

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Steven f/AZ

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