Lucas fuel treatment worth money?

Originally Posted by Nikon FM

There has been some posts that mentioned the 370Z engine had an 96 octane fuel as a design point. I would not use fuel additives but I have mixed 92 and 101 octane (half and half), unleaded of course. There is a difference in the cars performance with a higher octane. I really like running the mix but at $8.45 USD a gallon only every once in a while. When I track the car I'll use the same mix.