You are starting to sound like an
oil expert!!! Been reading up on this stuff?
Zinc/Phosphorous content is very important - especially for flat tappet cams (mine is a roller cam). I run 40w in the spring/summer/fall to eliminate the multiweight modifiers.
That's a good price at Autozone. I will have to see if ours has it, and pick up a couple of cases (
Oil prices are NOT going down these days!).
Thanks for the tip,
Jim Kellogg
Breesport, NY