How does Amsoil ATF compare to mobil 424

[countryboy9799]

I have a polaris four wheeler and the Hilliard front diff. calls for Mobil 424 or Mobil fluid LT. It is recommended on atv forums that ATF will work to but I just want to make sure.

I have heard of others putting gear lube in and its to thick, what happens is the automatic locking diff. will cause severe damage if it doesnt engage right. Thanks

 

[MolaKule]

The only Amsoil product I see meeting the same viscosity specs is the Amsoil ATH tractor/hydraulic fluid.

Check with one of the Amsoil reps here and discuss.

ATF is too thin and 80W90 gear lube is much too thick.

 

[Donald]

If you call or email Amsoil they will be glad to answer your question. Then if that is convenient you can buy from one of the Amsoil sponsors on this forum.

 

[countryboy9799]

It seems like ATF has been the most popular recommended fluid on the atv forums but ATH is recommended too.

 

[Gary Allan]

Doing an end run around:

Mobil LT

Applications

* Heavy-duty transmissions, differentials, final drives, hydraulic systems, power steering systems, wet brakes, PTOs, and hydrostatic drives used in agricultural, contractor, and industrial applications
* Recommended for top-up and refill of systems
* Suitable for transmission applications requiring Type A (Suffix A), Dexron, and Type F fluids
* Recommended for hydraulic and transmission systems where an SAE 10W-20 engine oil is specified
* Do not use in passenger car automatic transmissions


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Specifications and Approvals

Mobilfluid LT is recommended for use in applications requiring:
API GL-4 X
Caterpillar TO-2 X
Denison HF-0, HF-1, HF-2 (Pumps Only) X
John Deere J20D X
Vickers 35VQ25A X


424

Applications

* Heavy-duty transmissions, differentials, final drives, hydraulic systems, power steering systems, wet brakes, PTOs and hydrostatic drives
* Recommended in off-highway industries including: agriculture, construction, and quarrying
* Recommended for top-up and refill of systems
* Suitable for commercial transmission applications requiring Type A (Suffix A), Dexron and Type F fluids. Do not use in passenger car automatic transmissions
* May be used in applications requiring API GL-4 or SAE 80W grade lubricants in all gear applications except hypoid gear designs
* Outstanding replacement for engine oils recommended for hydraulic and transmission systems


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Specifications and Approvals

Mobilfluid 424 meets or exceeds the following industry and builder specifications:
API GL-4 X
Ford New Holland FNHA-2-C-201.00 X
Kubota UDT X
Volvo WB 101/BM X
CNH MAT 3525 X

Mobilfluid 424 is recommended for use in applications requiring:
Allison C-4 (Agriculture Applications Only) X
Vickers 35VQ25 X
Caterpillar TO-2 X
Denison HF-0, HF-1,HF-2 (Pumps Only) X
Ford New Holland ESN-M2C134-D X
J. I. Case MS 1204-07/09 X
Massey Ferguson MF 1135, 1139, 1141 X
UTTO X
AGCO Powerfluid 821 XL X
John Deere J20C X

Putting a few of those spec's into Amsoil's search function produces the ATH that Mola suggests.