Hi guys. I was checking the oil in my new craftsman push-mower (it is the origanal factory oil) and it was GREEN!. Does the factory put some weird chemical in the oil to help the new engine? Or do I need to be concerned?
It is a good push mower, accept for the engine almost stalling when it is at an angle.(which I can understand).
I've never seen green oil in any of my new small engines. (what the heck?)

