Turbosmart has an excellent blow off valve lubricant that will keep your car running smoothly. This 50ml bottle will ensure you have enough to keep your car going for a long time. Turbosmart Multi Spray BOV Lubricant is a high-quality lubricant designed explicitly for Turbosmart blow off valves. This lubricant will help to keep your blow off valve working correctly and prevent any wear or tear. Turbosmart Multi Spray BOV Lubricant is a must-have for any Turbosmart blow off valve owner.