so yesterday i decided to make a big step and change every oil fluid truck takes with royal purple and i did notice a difference in the way it rides and my mpg increase 1.5 I did both of my differentials,transfer case,engine,transmission,and the coolant additive.This is for anybody wondering if royal purple is worth the money.

 

I like it not sure if the cost ratio to the other stuff makes R/P worth it though. I still havent gotten around to tranny or coolant yet.

 

I use it and love it. I also have the trans full of it. Now THAT was expensive. As for the cost of oil, the RP isnt but about $1 more per quart than Mobile 1. I think the 1 gal bottle is about $28 around here

 

how much would it cost to put royal purple in both front and rear diff and the tranny

 

it cost me $200 to have a shop do it.

 

1 qrt of RP ATF Max was 11 bux for me and it took 17 of them in the trans. As for the front & rear diff, I would guess about 3 qrts each and I forget the price on those.

 

pretty close it's 2 quarts in each diff you fill the front till it comes out the hole the rear the line is 16 mm below the fill hole.

 

C205F .................................................3 .5 pts. (1.66 L)

*** (a)

10 1/2 AA .............................................4.75 pts. (2.25 L)

** (a)

11 1/2 AA .............................................7.65 pts (3.62 L)

** (a)

(a)

+/- 1 oz (0.03 L)

**

With Trac-Rite DO NOT require Limited Slip Additive.

***

With Trac-Lok add 4 oz. (118 ml) of Limited Slip Additive.

 

Never heard of "Trac-Rite".

 

royal purple already includes the limited slip additive but yeah it was a little expensive to the whole truck thats why i bought a little at a time