So, it looks like RedLine's secret sauce to make good lube without spending a gazillion dollars on R&D is to pick the best base stocks and additive packages they can and blend them.
They've been working with Lubrizol from the very beginning. Everything they have going for them is high-quality base oils and additives. In 1986, Roy Howell, RedLine's Chief Chemist, moved from Lubruzol to RedLine Oil. And while I see the creation of the Professional Line as a brand dilution exercise, it was also more than likely a compromise so that their parent company, Philips 66, won't touch their high-end product line, which everyone here uses.
So no, the RedLine Oil High-Performance line isn't going anywhere anytime soon. Minor adjustments are made periodically to keep up with industry changes, of course.
Here is Roy Howell (I don't know why they publish these videos on FB only):
Roy talking on camera about some of our products . #pri #redlineoil
fb.watch
I would still advise anyone I meet over here in Dubai to run Redline 5W30 on their HEMIs; just to be on the safe side.
Lowering your HEMI's temperature in that 50C weather might also be advisable, and running good, high-quality oil, like RedLine Oil as is changing your other fluids more often. That's why I asked you about your thermostat and transmission earlier.