Royal Purple...how does it compare?

[OVERKILL]

sulphated denotes sulfur?

isnt sulphur in gear oil to make it more betterer?

does that correlate to hps "high"hths for say 5w30

https://link.springer.com/article/10.1007/BF02541759

There's one example. There are so many different possible options, I can't really opine on this, but I do believe the idea was that it provided some EP or AW function, though EP really doesn't exist in most engines, that's a gear oil and transmission thing.

This would have no impact on their decision to blend it with a higher HTHS.

 

[Wireman1987]

RP has a Dexos license I give them that much. I hear it’s good oil I been tempted to run it but can’t get myself to spend the money on it. I would probably try it before I would amsoil

 

[proffittmarke]

Royal Purple 0W20 UOA
This is my first UOA.Used Blackstone. Royal Purple 0W20 Dexos. What do you guys think?

 

[RDY4WAR]

The phosphorus is low, but it could also be Blackstone reporting low. Honestly, it looks like Gucci Valvoline. Wear metals look good though.

 

[facility1]

looks like a pretty good uoa,,decent oil.

 

[97prizm]

Royal Purple seems like the boutique oil of Walmart. Ive always been a little suspicious of it and understand it uses a cheaper base stock than Amsoil. Amsoil is a very well made high quality oil which doesnt spare the expense. I would run it myself but I simply cannot justify the price. The Royal Purple isnt cheap but its a little better at nearly 10 per quart versus 15 per quart for Amsoil.

If you run Royal Purple can you post some UOAs? How does it compare to other oils? I enjoy watching Amsoil, HPL and RedLine go all out to make the best oils known to mankind. Hats off to them and maybe one day I might buy it. Im just wondering if Royal Purple is truly in the "boutique oil" club or is it simply another Walmart discounted rollback thing... Should I stick with the good ole silver Mobil 1 bottle or trade off to the purple bottle?

If I get my Mazda rx-7 race car going before winter I'll run a uoa. I ran 85w-90 with a little 85w-110 gear oil in the differential as it had lsd additive already in it. I think the Synerlec was peak RP but am not definitely sure. I always ran 10w-40 oil in it for a race season. With oils as good as they are I always thought it was wasteful to dump it after every race.

 

[Jocephus]

As people said…the buyout really changed the product.

That being said, I still use it in one vehicle. My daughter died and I still have her mustang. Her favorite color was purple. Her mustang is purple. She liked royal purple. So it gets royal purple as long as I live.