warriorp

I'm planning on changing my trans and diff fluids soon with Royal Purple Syncromax and Max Gear. My question is do i still need a friction additive for the diff, the bottle says its not needed. Just wondering your experiences.

Thanks,
Chuck

BenC5

I put the Royal Purple in my rear diff and added NO modifier, no issues at all.

Many on here use it and is why I went with it.

user_name

There is even a metal plate on my diff fill plug specifying that you need the limited slip additive. The owner's manual says the same thing. I use Mobole 1 LS with the additive already in it.

SUPERCRUZ

Used the RP Max Gear in my rear diff about two years go. Did not add the limited slip additive and I have had zero issues. The additive is already in the gear lube. Others will disagree but just stating my experience. Good luck with it.

imflyinbiya

CAP94

Royal Purple already has it in the bottle. Check out the label.

Changed mine this past spring, no problems..

Donkey

http://www.royalpurple.com/gear-oil.html

"All viscosities of Max-Gear are formulated with hypoid friction modifiers necessary for use in clutch or cone type differentials. No additional additives are necessary."

Used gear oil is one of the worst smelling fluids on the planet...

itzza427

WEW,,got that right,,,on both counts!!