85w140 For The Diffs? (1 Viewer)

[SR.GRINGO]

Will this work for my differentials and transfer case? They call it multigrade meaning that it is both 85 weight and 140 weight. I think it got down to 45 degrees once here but for the most part it is in the mid 70's to 110+ degrees so I think this may be fine. Just need to verify.

Question number two: I wheel ever other weekend or every third weekend and we end up in the river a ton--I do have extended breathers on the diffs and I have been changing the diff/transfercase oil every 6 months. The last time I changed it was in late October--should I wait until after my trip on Saturday to change it?

 

[Koffer]

I run this in all my rigs (all are over 100k) yeah it thick but it does take some of the slop out .
I use all year round . The only time i see any problem is when its 20degF or lower and its a little stiff shifting for the 1st couple of minutes

 

[Land Speeder]

I use it in my rear dif since I have an Aussie Locker and it makes it even that much quieter.

 

[MaddBaggins]

I use it in my rear dif since I have an Aussie Locker and it makes it even that much quieter.

Same here, and I'm in S. AZ so cold is not a factor.

 

[SR.GRINGO]

Thanks this is what I wanted to hear--I can't source the straight 80 weight here. I think I should wait until after my river run to change both the diff/transfer case oils. Suppose I may as well wait on the ATF as well.

Thanks

 

[Tapage]

I thought the FSM say 80W-90 .. ?

 

[Bryan E.]

My recommendations are to get the cheapest 80W - 90 and change it ASAP after running through deep water for any more than just a splash. It doesn't seem the oil type will make as much difference as to changing it once a month at least if your into this much water. I even worry about your birfields, wheel bearings, etc. since the axle really isn't made for constant deep water stuff. At least you might wait until your next water excursion, and then pull your axles apart, check for water in oil, grease, bearings. If it is totally dry, and no rust or signs of water inside it then maybe your fine, but if it's there, it will let you know how to procede.