A multi-purpose product. 100% petroleum. Eliminates dry starts and resists thermal breakdown for total protection in new engines. Stops smoking, knocking, and oil consumption in worn engines. Raises oil pressure and adds lubricity for more miles per gallon. Use in any gear box to stop wear, leaks, heat, noise and hard shifting. Will not void new car warranties. Extends oil life by at least 50%. Blends with all petroleum and synthetic oils. In most cases use 1 quart per oil change. Use more for badly worn engines.