[Isphius]

to add a little bit, The thing i dont like about oil additives, is there is absolutley no way to prove or disprove that they work or not. Unless you take like 50 brand new cars, additive of choice in 25 of em, and drive them 200k miles on a dyno, same temp, same climate, all that fun stuff. And then youd have to take each engine apart and micrometer everything inside. If i had a few million id set it up.