Able to meet ILSAC and API requirements/specs, while name brands like Pennzoil and Valvoline meet the same specs, yet cost as much as double in some instances. I've seen a bottle of pennzoil synthetic cost double of supertech yet they both meet API and ILSAC specs.
Are the big brand's base oils that much better than store brands, or is it the additive packages that are that much better or both?
Just wondering cause I've read on here where people using Wal-Mart brand or Motorcraft get just as many miles out of their vehicles as those of us who use the big brands like Pennzoil, Castro, etc.
Are the big brand's base oils that much better than store brands, or is it the additive packages that are that much better or both?
Just wondering cause I've read on here where people using Wal-Mart brand or Motorcraft get just as many miles out of their vehicles as those of us who use the big brands like Pennzoil, Castro, etc.