I've never believed in octane boosters/fuel additives....maybe some work to some extent, I don't know...I plan on sticking with VP race fuel, as I always have.
I ran into a Shellbourne Executive recently at my Ski-Doo dealer, and he was trying to push his product on me. He claims his product is legit and used by motocross racers, snowmobilers, nascar...etc, and dyno proven to better than "octane boosters".
He also claims his product is the base ingredient for most race fuels, and that Shellbourne shouldn't even be used in the same sentence with octane boosters.
Anyone know of Shellbourne?, or have any experiences with their stuff?
http://shellbournefuels.com/https://www.youtube.com/watch?v=neeQveE_EWI