K100 fuel treatment eliminates water in the fuel to prevent winter freeze-ups and phase separation in E-10, and improves fuel performance by altering the burn chemistry for more complete combustion, boosting the octane, and reducing oil fumes and toxic emissions. K100 treatment cleans engines and fuel systems, dissolving gums and varnishes for maximum engine performance and fuel system life. K100’s unique organic chemistry will even “fix” equipment that has been sitting a while and won’t start – or runs roughly!