I regularly see on here that basically it seems that brand doesn’t matter as long as an oil meets specs. I’m sure to a certain extent this is true, however, the extra $$ does buy you something. Bought Supertech 0w20 synthetic (10k mile low-rent variety) to do an oil change on a rental vehicle I am using for the next week. Im going to tell you, that stuff is more acrid smelling than any Valvoline Extended Protection or Mobil 1 I use on my own vehicles. It smells noticeably less refined. If anyone doesn’t believe me check it out for yourself.