VR1. Mineral or full synthetic

66fs said
You are more trusting than I. I tried a low viscosity Mobile One, back in the day, took the 4 speed 273 Barracuda out and thrashed it hard for 15 min. Did not like the hot idle pressure when I was done, drained it and went back to Valvoline 30 Racing. Ran the same Valvoline Racing 30 in a 1996 ACR Neon. 250,000 miles on it and it still runs like new. I run Valvoline synthetic 10w-30 in the three new 5.7 Hemi in the 2009 to 2018 Challenger and Chargers. I won't go below 10w-30. I also worked with someone who tested motor oils. The take a way from her was 10w-30 was the best lubricating multi grade. In my old cars, including a 2001 Jeep Cherokee, Valvoline 20w-50 Racing is my winter oil. I don't care what MOPAR is recommended anymore, I'm not sure they are looking for the best longevity of my motors.

You've got it sorted out just fine. There's no one solution for everything, and you find what works for you and go with that.
The only thing I'd respond to in your post is that the 0W, 5W, 10W, etc only refers to the oils ability to flow when cold. As long as it is in grade as a 30 at 100°C, the first number matters little. There are some great 0W-30s out there, and some 10W-30 I wouldn't touch. Also straight grades. I love 'em. The problem with them is price and availability of the ones with a good dose of ZDDP is poor.