I have just picked up a second hand petrol mower.
It is a Red Devil one and quite cheap in construction.
It works fine but I am worried about the fuel. The seller
said it was just straight unleaded but I think it should
have some 2 troke oil in.

So the question is are lawnmower engines 4 stroke?
or as I suspect will it be 2 stroke?

Thanks for any advise.

taz.