I like running it in the summer. Knocks the temp right out of the motor, and let's you hot lap easier. Also makes way better power than gas on those hot summer days.

Winter time can be a little tough starting, and warming up. Almost impossible without a lean out valve if it's really cold.

Keep your gas carb. Throw it on when it gets cold, and when real winter comes your fuel system is better off with gas sitting in it.