Oil Life

[alex.j.nassar]

So, I have been using a full synthetic and changing it about every 7-8k. What intervals do you guys change your oil at? What about the tranny, differentials, and transfer case?

 

[chmura]

If I were you I would change your oil sooner than that. The 3.4l is prone to having premature sludge in the engine oil.

Crap! Oil Sludge - Expedition Portal

I change mine at 3-4k miles with synthetic oil.