I guess I'm the oddball here. I've never fogged my 2 stroke outboards and I've owned them for over 45 yrs. I only change the lower unit oil when I change the water pump, about every 4 or 5 yrs. never had a lower unit go bad. but did smoke a piston on an old johnson many yrs ago that had a low pitched prop and no tach. the only reason for getting rid of a motor was to upgrade. i store my outboards for months at a time from Sept to March or early April and have never had trouble using them the next spring. the one thing I do if I use them in cold weather is pull the boat out then pull over and lower the motor and allow the water to drain, raise the motor and take her home. I've used a boat in the cold a few times to cross Brookville lake to deer hunt the other side. and all I did was drain water out of it before taking it home. then I lower it again at home to drain any excess water I missed at the ramp.