Owner's Manual
Page 131
... the 260° (Hot) mark, pull over and stop the vehicle and run the engine at the same speed. 13. Idle the vehicle with the air conditioning turned off . Any reading within the normal range indicates that might occur with the transmission in hot weather, up mountain grades, or when towing a trailer... the front and rear wheels to OFF, the fuel gage, voltmeter, oil pressure, and temperature gages will likely indicate a higher temperature (above for each indicated problem. Temperature Gage Indicates engine coolant temperature.
... the 260° (Hot) mark, pull over and stop the vehicle and run the engine at the same speed. 13. Idle the vehicle with the air conditioning turned off . Any reading within the normal range indicates that might occur with the transmission in hot weather, up mountain grades, or when towing a trailer... the front and rear wheels to OFF, the fuel gage, voltmeter, oil pressure, and temperature gages will likely indicate a higher temperature (above for each indicated problem. Temperature Gage Indicates engine coolant temperature.