[WilliamBos]

Originally Posted by ray66v

Yes, the cheap stuff will work. However, occasionally some posters report problems with using it in a hydraulic transmission. Problems that go away when they switched back to Permatran.

The scary long warm up times, recommended in the owners manual for cold weather, suggest the need for synthetic oil since they protect better in extreme temperatures. I think the transmission and hydraulic pump lifespan will benefit enough to justify the added expense.

As a side note: I recommend you use an EP rated gear lube in the front axle, rather than hydraulic oil. MF allows the use of either. Hydraulic fluid cannot hold up near as well as EP lube under the pressures created in these gears.

What EP Lube are you using Ray?? May change our out. FWD is engaged all winter long, so it would be nice to have more piece of mind.

Are you using Permatran or Amsoil in the hydro?? Which Amsoil?