I undercoat mine but my 2018 just got its first bubble starting on the rear wheel well, its basically only noticable by me since im the owner and i paid it off lol. Bottom of the rockers have very light rust starting after 145k miles with heavy salty miles to.
This isnt at all what he asked. Just answer the guys questions instead of acting like you hold all the knowledge and dont believe the answer will help him
You must tell everyone that wants to use a group IV/V oil with high moly that they dont need it and that it will never make a didference, all the while using a group IV/V oil with high moly
The delvac 1 i got is like 2003ish. The oldest i found was atleast 1999 as the back of the jugs say mobil oil and not exxonmobil. I would have bought some but the gas station wants 60 bucks a gallon