Hydrostat Fluid


Old 01-22-03, 12:58 AM
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Join Date: Jan 2003
Location: Indiana
Posts: 88
Hydrostat Fluid

I've got a Colt garden tractor (early '60s), with a hydrostatic transmission. Colt was made for a few years, then bought by Case. I'm trying to find out what type of fluid to use for the gearbox. Through the different tractor supply and repair shops I've talked with, I've been told to use Ford ATF, regular hydraulic oil, and Shell 15W-40, or whatever is recommended for a Case hydrostat. It's got a 10 horse Kohler, and is used mostly for plowing snow and pulling lawn rollers (no mowing).

Thanks for any help!
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Old 01-22-03, 06:05 AM
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Have you tried contacting Case and asking? They would surely know if you e-mailed them or called their tech line.

That's the way I would go.
Old 01-22-03, 09:20 PM
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Join Date: Jul 2001
Location: USA
Posts: 16,815
Hello NotMrWizard!

The hydro-oil that John Deere markets claims to be suitable for use in all hydro units. It is basically just a very low viscosity oil, but may have specific additives for operation in hydro units.

I agree though...try to contact case or a case dealer.
Old 01-24-03, 01:03 AM
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Join Date: Jan 2003
Location: Indiana
Posts: 88
Thanks for the help, I'll give it a shot!

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