Has anyone used Royal Purple Oil with Synerlec

I am going to run it in the sled. I got the same gains out of my 2500 suburban too. I have started it in 22 degree weather, and it started way easier than valvoline 5-30 started in the summer. looks neat too pouring purple oil. Maxdlx
 
Seems like everyone will have an opinion on what oil to use but I wanted to add this for everyones interest. I work with deep sea robotics (8000-10000 ft) where things operate in very cold conditions and my company just switched everything over to royal purple... These are high dollar systems and for the company to do a full switch I know there must be something to Royal Purple. Now I'm not claiming that it is the best oil out there, but all of our system pressures and temps have decreased and it seems like we are getting more life out of all our components.... I also want to include that I have been running it in my Rx1 Mtn. and have not had a single problem.... It also seems to run smoother and I haven't had to add any oil. So the short of it is that my vote goes for royal purple.
 


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