Engine oil

tmule44 · Jan 23, 2018

I have a 1965 JD300 loader backhoe with a 3 cyl gas engine. What engine oil should I use in the engine? The manual states 30w or 10w30 but the api specs they call far that type of oil is obsolate.

D- · Jan 23, 2018

15-40

Bob Harvey · Jan 23, 2018

Ditto

SVcummins · Jan 23, 2018

Plus fifty two 15 40

41B-boy · Jan 23, 2018

Mr. Cummins,

Sorry to be dense. What does "plus 52" mean... never heard that before.
thanks, Bob

Lee B · Jan 23, 2018

SVcummins · Jan 23, 2018

It?s john Deere branded oil pretty cheap and seems like a good oil . There?s lots of other good oil to

D- · Jan 24, 2018

Wouldn't recommend +50.
Unless I'm mistaken it's synthetic.
just use a regular 15w40.

Ragnarok · Jan 26, 2018

What these guys are saying is use a good quality diesel oil. Several brands available...Mystik, Shell Rotella, Castrol, Deere, Case/IH, etc

A diesel rated motor oil still has the anti-wear additives that most modern automotive oils lack these days(zinc/phosphorus/zddp). Older engines gas or diesel that use sliding cam followers should probably use a diesel rated engine oil.

Engine oil

tmule44

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D-

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Bob Harvey

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SVcummins

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41B-boy

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Lee B

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SVcummins

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D-

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Ragnarok

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