I do it, every tank if I'm close to home
and on the last tank of the trip and the top-off at home when I get there, for longer trips.
I also make a point to run the generator a while on the treated gas after a long trip.
I usually don't know if it'll be a month or more till I go again.... so I try not to take chances.
Thanks by the way, this reminds me I need to get a new bottle. Pretty sure I used the last of it....
__________________
|