Diff Fluid

[NevrKnow]

Ok.....vote time.....any thoughts on gear oil brands ?....( other then the specs and yes I have a limited slip)....Thanks friends, John

 

[kingkevindavid]

Royal Purple

 

[jestersv]

you might look at the pumkin it might already be synthitic (sp) my 99 was, surprized the heck out of me. my local o'reillys only sells royal purple.If it is there will be 2 tags under the bolts instead of one just with with the numbers other will say synthitic.

 

[JLDickmon]

Valvoline
Royal Purple just got jabbed by the FTC for advertising claims..

 

[dboyw]

Amsoil Severe Gear
limited slip additive not needed

 

[Fine69]

Just about any Synthetic is good. I like Royal Purple and Mobil 1.

 

[kingkevindavid]

No additive needed with Royal Purple either.

 

[NevrKnow]

well I went with the valvoline durablend and the additive. I look at it this way, Im gonna change the oil again in 30,000 miles anyway.

 

[aklim]

Another vote for Amsoil

 

[kingkevindavid]

Most important thing is you know enough to change it, many people never change the fluid in the lifetime of the truck.