Honestly I run either the Brad Penn Green 5-30 with Lucas or the Red Cap Valvoline. I have ran both of these in my race cars and Gbody's but, I feel they both are similar but I get a better deal from Brad Penn with having a race shop in the family.Highwood Malibu said:The Brad Penn is good oil if you can get it and I would recommend the Lucas additive for most of the engines in these carsjdracer13 said:Brad Penn with Lucas additive