What type of grease do grass mowers use?
Answers: Depends on the type of mower. A call to your mower's maker's customer service number will bring you the answer for your mower.
One of ours takes 10W, the other 30W,
you can use 30 cargo oil within the engine and then mix 3 cycle grease in the gasoline to build it run. if you need more info travel to a repair lawnmower shop. I hope this helps!