AW32 hydraulic oil premium vs economy

One Sock · Mar 22, 2021

I was looking up hydraulic oil for my MF 34A loader. I notice that NAPA and Carquest both offer a "premium" and an "economy" version of AW32 oil, while AutoNoze just has one type (STP brand). Is it worth paying more for the premium version?

I also found this doc:
http://econtent.autozone.com:24999/znetcs/psb/en_US/2/10/167/getting_to_know_coastal_hydraulic_fluids.pdf

It says that the premium is good for 5000 hours and the regular for 1500 hours. Massey specifies 1000 hours between hydraulic oil changes, and it may take me a long time to accumulate 1000 hours. In that case I'm wondering if it would make sense to use the cheaper oil and change it every few years even if it's only been, say, 500 hours.

showcrop · Mar 22, 2021

It will probably get loaded with moisture from condensation in two years. Moisture laden oil is not good for your hydraulic system. Most likely the cheap oil has a lot lower moisture absorbing additive content so it will last longer than the "premium".

Steve@Advance · Mar 22, 2021

A place I used to buy hyd oil from, note used to, as in not any more for various reasons!

I had bought some buckets of oil, didn't specify or know anything about economy or premium, as they didn't ask or volunteer any information.

Took it to the shop, put it in. Looked on the empty bucket, there was a LOT of something that sure didn't belong in a new container of oil! Black grainy, looked like sand or metal filings.

Took it back and showed it to the lady at the counter. She shrugged it off, That is what you get when you buy the economy line, that is for leaking equipment that doesn't matter what you put in.

I told her I wish someone had explained that before I bought it and used it. Her attitude was everyone knows that and everyone wants the cheap stuff!

Well, I didn't, and I didn't!

I bought the premium to finish the job, and looked inside before using it, and it was clean.

So either I got a bad bucket of economy, or there is a big difference. But I'll never buy the EconoLube line again!

sotxbill · Mar 22, 2021

in the cheap,, you often can see additives at the bottom that did not fully dissolve into the solution.. cheaper additives. usually a dark brown substance.

Secret Squirrel · Mar 22, 2021

As a rule, you don't want AW in a tractor hydraulic system. It can foam, and become disagreeable. You can use the cheaper oil that designed to work for not much more
money.

One Sock · Mar 22, 2021

(quoted from post at 13:20:57 03/22/21) As a rule, you don't want AW in a tractor hydraulic system. It can foam, and become disagreeable. You can use the cheaper oil that designed to work for not much more
money.

The operator manual specifies 10W oil for the loader. AW32 is 10W. As opposed to UTHF which is 10W-30. Is the manual spec obsolete?

Texasmark1 · Mar 22, 2021

I bought THD oil on the www this past week for my new hydro. tractor and this stuff was pricy, but it had a 6000 hour user life time rating.
Tractor only had 10 hrs on it and when it hits 50 in it goes and bye bye on fluid changes.

AW32 hydraulic oil premium vs economy

One Sock

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showcrop

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Steve@Advance

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sotxbill

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Secret Squirrel

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One Sock

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Texasmark1

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