diff oil change

[Lynn]

What gear lube weight do I put in my XJ? It's got a Dana 30 front, and a Dana 44 rear, both have ARB lockers. I'll be using Amsoil.

[RichP]

Don't know about amsoil but I run 75/90 Mobil-1 and at 180,000mi it has been good to me. I don't know if the ARB's make any difference in the grade oil, you might want to look for a 140W.

[sidriptide]

i use valvoline synthetic 85w 140... owners manual recommends synthetic if you plan on towing...
mike

[juicexj24]

I run 75/90 in the rear of mine with an ARB. Same in the front with a open diff (not for long). Juice

[Kejtar]

Originally posted by sidriptide
i use valvoline synthetic 85w 140... owners manual recommends synthetic if you plan on towing...
mike

WHat you're probably using is the synth mix or whatever they call that as valvoline doesn't put out a full synth at that weight (That I could find anywhere!)

[Pale Horse]

I've dumped a few quarts of 75/90 series 2000 amsoil synth in both pumpkins in my XJ. No complaints!

[Runnin'OnEmpty]

Make sure it's rated GL-5. The 5 has about twice the EP additives as the GL-4's; and gives much better protection.