Evening guys I'm doing a full engine service etc and a service. I cane across this engine flush stuff LIQUIMOLY I'll link a picture below. Does it actually do anything? Is it harmful for the engine alone?
Liquimoly you sna very good brand , can't speak for this product specifically but believe their are YouTube videos. I am in the camp of not being a fan of engine flushes, they can work too well and clean things up too well causing more wear , as the old deposits in away are keeping things together. If you want to flush the engine, I personally go the route of doing and engine oil change, and then do another one in a couple weeks, alot safer and does the job