Depends on which engine but most use SAE 10w30 weight. I recommend you use 100% synthetic oil in an air cooled engine.
Dump/siphon/drain it as best as possible and as long as you haven't tried to run it, you should be able to fill it with petrol and fire it up! The petrol will dilute the residue sufficiently.
It burns up and goes to the engine to power it so your car can move
I think a electric lawnmower would be cheaper because current usage goes off the amount of amps and if you have a lawnmower that has a low voltage then it would cost you less.
champion LM 19
A power extender is like an extension chord but has more force and power in it. Basically goes out to about 14 yards and is a power booster. So just checkout the website.
You put petrol in it, start the engine, and it goes.
Of course, in fact very easily. Petrol is not the thing that gets ignited. It is actually the fumes. The actual liquid just goes with it.
I am a mechanic and have recently found lawnmower oil works quite well in Ford Lasers.
Mounted on the side of the engine if it has one. Follow the fuel line as it goes to the pump. If the fuel line goes to the carburetor then it does not have a pump and is gravity fed.
Most cars run on petrol or diesel, some will use electricity, propane, bio fuel or a combination such as petrol and electricity.
why does my 4.75 BRIGGS & STRATTON lawnmower engine idles high and low when cutting my grass
an oil filter works, when the oil goes in to the gasket and then it forms petrol,!