Running 220 in town and hotter on the highway if running above 70 mph. Should be getting more air thru radiator on the highway.
Have to agree with Mike, thermostats have little to do with operating tempature unless there's something wrong with them. Cooler thermostats can cause heating problems by allowing the water to move too fast thru the radiator. Anyone have any experince with aluminum radiators, would a 2 or 3 row alum increase cooling capacity?
Frank
