SIXSLUG

Anyone have any opinions on Royal Purple Lubes? Specifically, the gear lube w/ the friction modifier? Thanks, KM

pocketchange

I use it in my NV5600 and have no problems.
pc

mbfarms

I use it in my rear diff. I think mine is 85W-140. Good stuff. Best part is you most of the time do not have to add friction modifier to it. I did not have to add any to mine.

Marks99

Put it in all the gear boxes on my '83 Dodge gasser 4x. Didn't find it to make enough difference to warrent the cost ... otherwise it seems like good stuff.

.02

RJF

Amsoil/RP/Redline.... are the big three when it comes to top oils. They are the best in the business in that order.

Moose10

Same here...two years now still smooth. I'm running Amsoil ATF in the transfer case, and plan on putting either Amsoil or RP in the diffs when I get around to it.

COUNTRYBOY

I run RP through my whole truck and love it...

bnold

I have it in my diffs, trans, and transfer case with no problems

hertz

We use it in our race car

RustyJC

RP 85W-140 works great in the rear differential for towing our heavy 5th wheel in Texas summer temps and Interstate highway speeds. No supplemental LSD friction modifier was required in my truck.

I have run RP 5W-20 in my Acura 3.2TL-S since the first oil change and am extremely satisfied with its performance.

Rusty

silver_goat

Run the RP in both front and rear. No problems yet.

Oilguy

The only compaint you will find about RP is the price... I rank Schaeffer in that group for good quality. It cost less and test out as good.

Oilguy

wannadiesel

I just switched from Redline MTL to RP Synchromax in my truck and I am pleased with the improvement, especially when the trans is cold.

MikeyB

I'm running RP 75w-140 lube in the diff and so far so good.
Also using RP 5w-20 in the Maggie. Seems to help reduce the notoriously noisy Hemi engine compared to the Mobil 1 5w-20.

MikeyB

Moose10

Thanks for the poop Oilguy, but give us a little info on Schaeffer, and where can one get it?
I've never heard of it before