On the other hand, if you enjoy flying in the cool crisp air the winter months have to offer, you should still have a chat with your mechanic to see if your airplane's engine manufacturer recommends a special oil for the engine or other fluids for other systems designed specifically for cooler climes. There may also be some systems that require attention. The most obvious one is the anti- or de-ice system or systems, if you are fortunate enough to have them. Make sure your anti-ice fluids are full and that there are no leaks. If you have a boot-style system, make sure the boots inflate properly. And if the system is electrical, make sure the panels heat up.