I run a 180 in the summer and a 195 in the winter here in North East Texas. I drive a 62 1/2 ton Chevy with a rebuilt 235 six and often pull a small two wheeled trailer. The main thing I try to do is keep the radiator clean by flushing or rodding it out and changing the anti-freeze every two or three years. I am running a rebuilt waterpump and the regular fan . We have had a full month of 100+ degree days this August and I had no overheating problems...
