Quite interesting.
Makes me reconsider my Lucas choice of oil.
Very good and thorough test.
Well, considering that it’s not an independent study and Amsoil came out on top (surprise!) I seriously doubt it’s objectivity.
Well if BMW sponsored a study saying that they perform better then Kia, yes it will be biased but it will still be true.
It should still be taken with a grain of salt, but not ruled out entirely.