Originally Posted By Challenger 1
Originally Posted By super451b
Been running it for years. Car runs the same as it did on Sunoco 110 . 11.2:1 engine . I always mix in a little Lucas top end lube with it .


What's the purpose on the upper lube?


To be honest , I really dont know. When I made the switch , it was at the recommendation of friends that had been running it for years . They told me to add the lube ,so as a matter of practice, I have always used it .