I can buy Napa "synthetic" on sale for $3 a quart of buy Motorcraft semi-synthetic for $2.77 a quart. Which of these is the better oil. I have read a lot about the Motorcraft on here, I just don't see much on the Napa. Thanks guys!
I will be using this oil on a old Chevy truck with a carburetor big block, I am guessing it will be very hard on oil.
I will be using this oil on a old Chevy truck with a carburetor big block, I am guessing it will be very hard on oil.