Originally Posted by HUD Cripple

My understanding is it is actually better for the AC system if it runs more often. Older cars, it was possible to go several months without ever engaging the AC compressor in colder climates. Essentially your system sits dormant and slowly rots. The new cars now force the AC compressor to come on much more frequently, even in cold temps. It keeps the fluid inside the system cycling and keeps all of the seals and parts lubed and moist.

That is what I was told anyways.