Cudajon
Full Access Member
I saw someting on Horsepower TV about gaining power using Royal Purple... Has anyone even changed out the gear oil in their SRT-10???? Or done the triple purple Dif oil, ATF, and motor oil?
Royal Treatment?
- Thread starter Cudajon
- Start date
There were was a test done over at one of the LX forums about a year ago where they dynoed several cars then changed the oil with RP....they dynoed 2-4 HP more after switching to RP.......I wouldnt expect much power gains but I am going to try RP the next time I change....not for HP gains but I have read good things about RP other than increasing power..
FATJACK
Full Access Member
A bunch of us are using RP Trans fluid, and Motor oil
i think im gonna have to do a oil change when i break her out this summer and will switch to rp.. sounds like it works well..
I did a before and after dyno with RP for the RP distributer here in town. He gave me a case of each oil free, Engine, Auto Trans (5gal), Rear End. Picked up 8HP and 12 FT#'s. Had the dyno sheets somewhere, just can't find them. It also dropped the engine temp by 5*, but the lifter noise was louder. Didn't notice any temperature change in trans. I didn't have the bands adjusted in the Trans at 15,000 miles like I should have. Did it at 37,000. But it looks like my Trans is on its way out any way, I have almost 39,000 miles now.
I would say, if the oil is free, go ahead. RP Trans oil is expensive, plus you need to find someone to change it and they charge $100-$125. I've switched back to the Mobile 0w-40, and I'll change to Mobile 15w-50 at the next change.
There is a benefit to the gear oil though, it already has friction modifiers so you don't need to add any.
I have also used RP in my Manual transmissions. Tremec's and Muncie's. It does make the tranny quieter and it seems to shift smoother.
Speed safe,
Shawn
I would say, if the oil is free, go ahead. RP Trans oil is expensive, plus you need to find someone to change it and they charge $100-$125. I've switched back to the Mobile 0w-40, and I'll change to Mobile 15w-50 at the next change.
There is a benefit to the gear oil though, it already has friction modifiers so you don't need to add any.
I have also used RP in my Manual transmissions. Tremec's and Muncie's. It does make the tranny quieter and it seems to shift smoother.
Speed safe,
Shawn
This was in the srt? or a diff veichel?
YFever said:
lbstone
Full Access Member
I did the RP treatment last fall a short time before putting her away for the cold weather. The big thing I noticed was the shifting was a bit easier and smoother, especially when I took her out for a spin when it was real cold out. Cant tell anything with the rear or the motor. I also run a K and N oil filter.
GriffsSRT
Full Access Member
I had mine changed (TRANS,DIFF,ENGINE) No I didn't noticed any power change. But my oil temp is about 10 degrees cooler. The lifter noise is a little louder. I changed the Trans to the SyncroMax RP. This was recommended by RP. I love it the shifting seems to be a lot smoother. Jack drove mine yesterday (FATJACK) and he said mine shifted smooth. Now is that because of the RP I am not sure. The only draw back is the cost. I bought a whole case of oil, the trans, and diff and it cost about 180.00 and then to change it (By a dealer) was 250. So it costs a little more to change it all out but the cooler temps, better gas mileage:rock:. I think it is worth it!
Bought my RP treatment over the winter months...Going to change as soon as truck comes out of hibernation...Here calling for 20-40 cm of snow within next 2-3 days...
On top of the 9 feet of snow now...Spring can't come soon enough...Ah Well what can you do...(look at the post from you guys that still have green grass and hope...
On top of the 9 feet of snow now...Spring can't come soon enough...Ah Well what can you do...(look at the post from you guys that still have green grass and hope...
Who carries RP?
portlandsrt
Full Access Member
YFever said:
Is this true???
GriffsSRT
Full Access Member
FlyingLow said:
Oil i bought at Oreilys auto parts and the Diff/Trans Fluid i bought at a a speed shop here in tennessee. i am almost positive that Oreilys carries all of it.
GriffsSRT
Full Access Member
portlandsrt said:
I was told by RP them selfs that this is true no additive needed.
What weight is being used for the motor & diff, and what type of fluid is being used for the manual trans. (gear or atf)?
Cudajon
Full Access Member
04 SRT 10 said:Here calling for 20-40 cm of snow within next 2-3 days...
I hate Global Cooling...
I also want to know this.
FlyingLow said:
Oreilys, Auto Zone and NAPA carry it around here...
GriffsSRT
Full Access Member
WOLFRAM said:
Call RP I used the SyncroMax in Trans and 10-40, and what ever they told me to use on the diff sorry can't remember off hand. Call RP though tell you according to climate and elevation.........:burnout: :burnout:
guys i now sell royal purple i will have more info soon because i just ordered the first order yesterday.
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