More Onan 2.8KW questions - carburetor

I live in Minnesota and it is not practical to run the generator once a month given very low temperatures. Instead, late in the fall I will add a can of Sea Foam (fuel stabilizer) to the RV gas tank when the tank is almost empty and then I run the generator for an hour or so. The gas left in the generator carb is, therefore treated. I start the generator several months later and I have not had an issue, except it does take a while to start it the first time in the spring. I do the same thing (add stabilizer) with all of my other small engines at the change of seasons and this has worked for me for decades.