Well Lucas oil is a huge oil brand in the trucking and Heavy Highway equipment world and then they branched off into all forms of racing - they have marketing money to burn due to their size - they even have the naming rights to a the colts stadium in Indy. I starting using their hot rod oil in my coronet - seems to work pretty good and maintains pressure better than the Valvoline I used to run - I have not tried anything thing else from them. In the race engines we have switched to the Driven oil (AKA the former Joe Gibbs oil)