I used to use Motomaster Fuel Stabilizer in my mower, and still do in my pressure washer and our Collector Camaro
I never had any freezing fuel issues down to -11C with the small engines in the shed. Camaro is in a heated garage, of course
Could be different in colder weather
Add the recommended amount and fill the tank full, run the engine a few minutes so it's all through the system, store for winter
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