Ensures immediate friction and wear reduction, adds an extremely protective and pressure-resistant boundary layer with low friction and lubricates during cold starts to prevent damage from lack of oil. Contributes to lower fuel consumption, longer engine life and less noise. Specially designed for older engine designs with or without a turbocharger. Regular use keeps the engine in perfect working order. Add to most oils in gas or diesel engines to reduce wear, improve performance and gas mileage. Add contents to 5-10 liter (5.3-10.6 qt) of engine oil. For best effect add to fresh engine oil. May be added anytime The product can be applied anytime, for the maximum performance add directly after the motor oil change. One can is sufficient for up to10 liters(10.56 U.S. QT) of motor oil. Minimum oil filling of5 liters (5.28 U.S. QT) is requested for optimum product performance.