I found a post in another forum where someone stated that Warren was only a distributor of oils and not a manufacturer; that they basically outsourced to whoever could meet the specs at the right price. IS this true?
It also said as a result that supertech was made by all different companies depending on who they bought the latest batch from. Quaker State was one of them mentioned.
It also said as a result that supertech was made by all different companies depending on who they bought the latest batch from. Quaker State was one of them mentioned.