It's worth every penny. Good oil. We have had our best dyno results with Red Line. You don't need to add anything to it, just run it. We have a customer that has a sponsorship from another oil company. He has asked and asked for tech help and received nothing. Now he takes the money, wears the logos, puts them on his car and runs Red Line. They know about it and don't care, they want the exposure and he wants the best oil. He has been running if for 10 years or so with no surprises. It is expensive but it's also good.