Which type of oil to use

I'm mainly interested in less wear, I experimented in the 70's and 80's with all kinds of brands and weights in a used 64 Polara Poly 318 that used oil. Valvoline Racing 20w50 was the hands down winner and actually lowered oil consumption to less than a quart in 3,000 miles. Since then it has gone into everything from a 273 Commando, 68 383 HP, 73 Dart 318, 96 ACR Neon 2.0, 2001 Jeep Cherokee 4.0. I don't care how many miles I put on a vehicle since I know it will run forever. I see very little wear in lifters, valve guides and rod bearings. You guys can run whatever oil and change it when you want.