Foretravel Owners' Forum For owners and Fans of Foretravel Motorcoaches September 12, 2025 ...

Hydraulic Leveling Jacks Fluid

April 23, 2024, 08:28:22 pm

Finally got all the jacks put back together and installed after sending the actuators off to HWH for a rebuild. Can I just use regular ol' ATF in the hydraulic fluid reservoir?  How do I know when to quit adding fluid?

Picture of the new helper we recently adopted included below.

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Re: Hydraulic Leveling Jacks Fluid

Reply #1 – April 23, 2024, 10:33:30 pm

I used Mobil one when I rebuilt my pump. 10/40

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Re: Hydraulic Leveling Jacks Fluid

Reply #2 – April 24, 2024, 02:00:02 am

Yes, ATF is fine as a substitute for HWH fluid.  HWH fluid is clear so any leak will not stain-- that is the difference.

Never heard of using motor oil as the hydraulic fluid in the HWH jack system-- check with HWH.

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Re: Hydraulic Leveling Jacks Fluid

Reply #3 – April 24, 2024, 10:02:54 am

On my '81 as long as the jacks were retracted I filled to just below the threads on the reservoir.

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Re: Hydraulic Leveling Jacks Fluid

Reply #4 – April 24, 2024, 12:55:59 pm

Mobil one is the fill for the modern zero turn mowers that operate at high duty cycle . Thus my choice.
Oe fill is ford type F  Or Dextron 2.

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Re: Hydraulic Leveling Jacks Fluid

Reply #5 – April 24, 2024, 08:20:05 pm

You should use dextron or equivalent atf fluid.

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