Having re-read my glider towing post, I hope it doesn't deter GMR45 or anyone else from flying a 182.
We are operating our 265HP 182 in an extreme mode - five minutes of full-power at 65 mph in hot and high conditions, followed by three minutes of full-flap, low-powered descent, all the while watching out for traffic with one eye and the other on the CHTs.
This is about as far way from what the 182 was designed for, as you can get.
Anyone who operates the 182 'normally' shouldn't have any problems with cooling, providing they are sensible when changing power settings and managing the cowl-flaps.
Our 182 has a carburettor temperature gauge, which is a real bonus. No more guess work about carb icing - just use the hot-air control to keep the temperature out of the yellow arc. I really like it.
Finally, much as I like the challenge of towing with the 182, I think it is a bad choice for a tow plane - we should have got a Pawnee.