If you want to have any heat in the wintertime, run a 180. If you choose to run a 160, buy a good set of Carhartt coveralls. The engine won't care either way. Just be sure the radiator is in good shape and clean before installing the hotter stat.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!