i will say--and im no vet, i have never had a oil problem , or locked up bearing...

i think its because i check my clearances??

my Oil "sponsors" from the 80's to present in no order:

pennzoil
quaker state
Oreilly
Brad penn
Valvoline
napa
mobil 1
advance auto
autozone
summit break in oil
kendall
and other forgotten brands




they all worked just fine.