synthetic fluid question

[Jarsiff]

Just wondering how often those of you with synthetic fluids change yours out? yearly? by the mileage? whats your preference? At the moment ive got amsoil in the tranny and redline in the transfer front and rear.

[Simon]

That all depends on how you use the truck.

 

If you're wheeling it a lot, in really muddy water, you'll want to change it out more often (for differentials, and t-case). Every couple of years or so.

 

If you're just driving on the street, I'd check the condition of the fluid at that interval, and leave it in as long as 60k. If the fluid isn't getting contaminated, it lasts quite a while.

 

FOr the tranny, 60k is plenty, as long as you're checking it regularily, and making sure it remains nice and pink.

[Jarsiff]

great thank you, i was kinda hoping i could wait before i needed to change it...spent a lot of money on that stuff hehe