Sunoco MO2X® Unleaded is an oxygenated racing fuel designed for excellent throttle response in high compression, high rpm 2- and 4-stroke applications such as motorcycles, all-terrain vehicles, snowmobiles, and karts. It complies with sanctioning body fuel rules limiting oxygen content to 2.8 weight %. MO2X does not have to be drained from the fuel system after each use. Sunoco MO2X contains additives to enhance storage life. It is not a street legal fuel and is for off-road and racing use only. As with any gasoline, it should be stored in opaque sealed containers where temperatures are stable. Technical Details Color Not Dyed. Octane (R+M)/2 97. Research Octane 101. Motor Octane 93. Specific Gravity 0.716. Weight (lbs/gallon) 6. Reid Vapor Pressure 10.2. 10% Evaporation 123. 50% Evaporation 206. 90% Evaporation 227. Stoichiometric Air/Fuel Ratio 14.6. Oxygen (weight%) 2.7. Ethanol (volume%) 6.8. HC Ratio 2.15. OC Ratio 0.022. Dielectric Constant 5.2. Leaded No. Applications Motorcycle Road Course. Off-road Motorcycle and ATV. Karts. Snowmobiles.