Red Line Two-Stroke Smokeless Oil - 16 oz. 40903 | Smoke is virtually non-existent with this blend. For improved power other Red Line products would be superior. Not for use where NMMA TC-W3 lubricants are recommended. Contain ester base oils with the highest film strength and affinity for hot metal. Increased power and excellent scuff protection. Provides the lubricating qualities of castors, but with exceptional cleanliness. Low carbon residue dramatically reduces plug fouling and smoke. Compatible with reformulated fuels. Each product works in both premix or injection systems.