No...there is no 'nutrition' in used motor oil. It's petroleum. Fertilizers work by adding nitrogen and other nutrients to the soil. Besides, why on earth would you want to spread that on your lawn? Doing so causes it to leach into the ground, the water supply, and will probably kill whatever you might have growing.
Petroleum is toxic to plants, so keep it far away from any growing things. Used motor oil also picks up heavy metals from the engine, especially old engines, so it's even worse.
Yes you can your kalb can also do it
hrf
Should probably use 10 w 30 or 30 w.
Yes, it is a premium oil that can be used in any internal combustion motor.
regular 10w 30 motor oil
Yes, it sure will. Bar oil is not formulated for use in an internal combustion engine and will damage that engine.
20-50 motor oil
regular 10w 30 motor oil
If its got a oil plug its a 4 cycle, 5w-30 motor oil
I don't think you need to. There is no motor, so it doesn't need oil.
To lubricate the motor to prevent overheating and wear and tear on the engine
Usually no difference except that later model vehicles require a multi-viscosity oil (5w-30, 10w-30. etc) while the regular 30w is recommended for small engines such as a lawn mower.
You will burn the motor up, which will be a very costly repair.
Small engines....like lawn mowers, compressors, etc typically take a 30 or 40 weight oil. Also, it used to be recommended to break in a new engine with a single weight motor oil.