I Don't know about those people that say "THEY DON"T WANT YOU TO KNOW" its kind of like a movie back in the early 80s called the FORMULA. This movie was about Big petrol. Companies hiding a synthetic fuel. If there was truly an additive or any thing else that could save on fuel(other than driving slower), we would have known about it in the 70s. I am sure there are Bolters out there that took a few more hours in chemistry than I did. What do you think?
Cliff59