Red Line's Two Cycle Snowmobile Oil is a low-smoke formula that's completely bio-degradable and is blended for protection in variable weather conditions. Its rust protection is superior to other oils and is specifically blended to adapt to the latest pump fuels. This oil is available only in gallon containers. Red Line Oil's popular two-stroke lubricants contain base oils which have the highest film strength and greatest affinity for hot metal. Because Red Line is a superior high temperature lubricant, it can be used at lower fuel to oil ratios, increasing power and providing excellent scuff protection and cleanliness. Where many two stroke oils are recommended to run at 32:1, many Red Line customers often mix their fuel at a leaner, 40:1. Red Line provides the lubricating qualities of castor oil, but provide exceptional cleanliness, with low carbon residue that dramatically reduces plug fouling and smoke. Red Line provides special protection for reformulated fuels. Dyno proven to make more power over longer periods of operating time.