Originally Posted by Justin Klemgold
We can argue all we want about oils til the sun goes down, lab tests are the only thing that can really "prove" anything....and Amsoil outperforms Redline in those hands down.
And regardless of what the tests say, you can still argue till the sun goes down about whether those performance differences are worth paying for - such as the higher cost of Amsoil or Redline vs the $4/quart that Mobil 1 costs at Sam's and Costco. (Just like some feel that it is not worth paying for the higher cost of synthetic vs conventional oil.)
I use Mobil 1, FWIW.