Storing gas without stabilizer in a fuel can or other approved container
is not the same as leaving the fuel tank of your mower or other gasoline
powered equipment. (2 stroke engines are especially sensitive) When gas is
not drained from carbs and fuel system gums and deposits can block small
orifices and fuel passages and prevent the engine from starting or running
properly. If the engine fuel system & carb is drained, and then filled using
a can of year old gasoline, it will probably run OK, (may be slight
performance loss with older fuel) OTOH if the same gas is left in the
equipment's fuel tank and fuel system for a year, there very well may be
starting or running problems.

--
Make it as simple as possible, but not simpler. (Albert Einstein)

Larry Wasserman - Baltimore Maryland - lwasserm(a)sdf. lonestar. org