2005 d22 diff oil Change

[richiedx22]

Hey guys
going to change diff oil and wondered if the oil i purchased is the right stuff.
penrite pro gear full synthetic (80w-140).

 

[ShortyNavros]

80W-140 sounds like LSD diff gear oil, so fine for the rear diff but you need like a 80w-90 for the front dif

 

[richiedx22]

ok thanks
Just one question why is the front requiring different oil please?

 

[Navmania]

Hi mate. Because the front isn't LSD it can use 80w-90w. The rear diff is LSD so the oil has friction modifiers added and a bigger range of viscosity is needed so 80w-140w is used. If you fit a locker to the rear you can then just run the 80w-90w Hope it answer the question. cheers. Brad.

 

[tweak'e]

??? being lsd diff or not has nothing to do with 80w-90 or 80w-140 oils. you can get both in lsd or not. you can also use lsd oil in non-lsd diffs but not the other way around.

80w-140 oil is very thick oil but a good choice for hot climates especially if you tow or have lots of hills.
80w-90 is the standard grade and a good choice for the front because most people don't use 4x4 all that much.

 

[richiedx22]

Thanks to everyone who sent reply.
Going to change this week.