Klotz Octane Booster not only increases octane in your fuel to eliminate detonation and make smoother combustion, it is an excellent fuel preservative! If you have ever had to clean your carb after having your bike sit for a few weeks, then you'll genuinely appreciate Klotz Octane Booster.

Their proprietary formula will preserve fuel for up to 180 days! This is far longer than any other product on the market. It's also been tested by boys in the shop over the long Minnesota winters and found to be the real deal.

Available in gallons as well (call for pricing and shipping information).