Modern Oil Equivalents

pinski · Feb 20, 2023

Hello again. I'm continuing on my restoration of my 1952 John Deere AR. This time I have a question about what types of modern oils to use considering the originally spec'd stuff is now nearly impossible to find. So if anyone has good info that would help here's the specified oil from JD:

Engine oil - 10.4L of SAE 20
Transmission - 30.3L of SAE 90
Hydraulic - 30.3L of SAE 30

I'm Canada, but the tractor is housed inside a heated shop so will never need to start or operate in the cold. It is a well worn unit so I would assume always go a little more viscous?

What modern equivalents should I use?

Thoughts

Muir hill 101 · Feb 21, 2023

15 40 diesel spec oil in the engine
Hydraulic oil could use any cheap tractor hydraulic
fluid or even engine oil .
Transmission Im not sure if you can use regular
gear oils or not . I have used just regular 80 90 ep
gear oil before .

Fixingfarmer · Feb 21, 2023

10w30 engine oil
Hy gard or permatran or mto pick your flavor unless you have
some trusted stuff Id avoid the lawsuit tractor oil at the farm
store. I have a good supplier here called Petroblend and
theirs is called utf but its all the same stuff
And gear oil 80-90 would be fine
Back then they couldnt have dreamed about multi-viscocity
oil. I mostly pick one that the high temp number matches your
temp chart you want to operate in. In this case the 20 is lower
than what we do down here. Then dont stray to far with the
cold weather number if its inside. The generator tractor for 20
below gets 0w40. The rest of the little ones mostly 10w30
because its much cheaper

buickanddeere · Feb 21, 2023

A low ash oil is more tolerant of worn engines and parade driving .

Modern Oil Equivalents

pinski

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Muir hill 101

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Fixingfarmer

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buickanddeere

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