Today we dive into doing an liqui moly engine flush. A lot of rumours about how it is bad for your engine, with the help of my N55 I would like to show you the correct way of doing it. Engine Flush https://germanparts.ca/parts/lm7712-e... The oil used https://germanparts.ca/parts/lm2249-5... In case you don't know the order, it is: add engine flush to oil run for 10-15 minutes drain oil and change filter fill with lower quality oil run for 10-15 minutes drain oil and change filter add good oil