From the text at the link in BA's post:
The other benefits are quite typical for aircraft which are operated LOP, and included lower CHT temps, cleaner oil, better oil samples, better cylinder life, and overall better engine service. It is not all that atypical to put a set of cylinders on a GTSIO about every 600 hours. We were able to fly all the way to 1400 SMOH before we had to look at any cylinder work.
How could that be so, yr right??
