i came across this thought it might help




You can use the following instead of Polaris brand oil.

2004 Polaris Sportsman 500 H.O.
Engine Oil: Amsoil AFF, 2 quarts
Front Diff: Amsoil TGR, 4 ounces
Transmission: Amsoil TCC, 1 quart
Drive Hubs: Amsoil STL, approximately 2 ounces per hub (I put it in with a syringe and seal the drain plug threads with Permatex PN 59214. Clean the threads on the plug and drain hole with a Q-tip and isopropyl alcohol before reassembly with the Permatex.)

Amsoil Formula 4-Stroke OW-40 (AFF) = Polaris 0W-40 Premium Synthetic

Amsoil Series 2000 Synthetic Chaincase Lube (TCC) = Polaris Synthetic Gearcase Lubricant (AGL)

Amsoil Series 2000 75W-90 Synthetic Gear Oil (TGR) = Polaris Front Gearcase Fluid

Amsoil Shock Therapy Light (STL) = Polaris Premium Demand Drive Hub Fluid

Amsoil SDF13 Super Duty Oil Filter = Polaris PN 3084963

Filters for All Polaris's except 700.

NAPA: 1358
WIX : 51358
FRAM 6017A
Purolator: ML16819
AC: 2057

 

I use the Amsoil in my engine and trans. You can use any good syn. 75W-90 gear oil in the front diff. And I use Mobil 1 Syn ATF in the hubs. During storage I put Mobil 1 0W-40 Syn oil in. Its cheaper than Amsoil so I can change it in the spring then run Amsoil during riding season

 

Thanks for the info![img]i/expressions/face-icon-small-smile.gif[/img]