My Bobcat will not be used that often, mainly when I have some project to do around my property. Not business use. Given that should I add anything to the fuel. Live near Albany NY and do plan to move some snow with it in the winter.
It wouldn't be a bad idea to do so. You can get algae growing in the fuel, it doesn't need to have been sitting for a long time for it to start growing either. The additives would also help prevent geling in cold weather.