1. There is less area to support condensation, which means fewer water problems and less risk of phase separation in E-10 gasoline.
2. There are fewer volatile fumes that can be a source of combustion, and some marine yards insist on a full tank for this reason.
3. If the fuel does go bad, there is more of it to replace.

1. The season starts with a fresh tank of fuel. Some motor manufacturers recommend this.
2. There's a much greater chance of condensation, which adds water to good, new fuel.
3. It's difficult, if not impossible, to drain the fuel injector/carburetor system. The remaining fuel will age, forming gums and varnishes that may result in a carburetor rebuild - expensive!

All K100 Fuel Treatments:

1. Contain a proprietary organic formulation that bonds itself to water and renders it completely burnable as fuel, so condensation is nothing to worry about. In E-10 gasoline, K100 encapsulates the water molecules before they combine with the ethanol, so phase separation cannot occur.
2. Contain organic solvents that dissolve sludge, gums and varnish and prevent reformation of those deposits.
3. Contain organic lubricants that coat the surfaces of fuel system to prevent corrosion and oxidation of metallic components. This also helps prevent cold-start scuffing on 2-cycle engines.
4. Contain an octane/cetane booster (about 2 points), which will counteract the slight deterioration of those levels during storage.