Gentlemen: What motor oil do you use?
Oh, it's that time again. LOL.
I make it to the Summit store a couple times a year and usually pick up a 5 qt jug of Lucas 10W-30 Hot Rod Oil. (Note High Zinc on the label) Wix or Purolator filters, NAPA Gold too. Never Fram anymore since the 80s after the guy posted his filter study on EEK.
I have 8000 miles on my 100% rebuilt 225 and will spend a few extra bucks to ensure reliability. I guess I'm averaging about 2000 miles a year and change it once a year. Winter promotes condensation in my unheated garage so it's not just about mileage.
The slant 6 has a stand pipe that ensures instant oil at start up.
I split my driving season between 2 old cars and an 87 Jeep. The 68 will soon be G3 powered so one less car to worry about wiped cams.