Wynn's Engine Flush 425ml
Leaves engines clean, ready for new oil to circulate freely. Helps free sticking valves and piston rings. How to use Add entire contents to the engine oil One bottle treats up to 6 liters of engine oil For better results, use at each oil change Bring engine to operating temperature. Switch off engine. Add one bottle of 425 ml to up to 6 litres engine oil before each oil change. Let the engine run for 20 minutes. Change oil and filter.