in order to achieve better emission levels and improve fuel economy, Chrysler sets up the Hemis to run at about 223 degrees,
220+ is great for emission levels and fuel economy, but not so good for performance, by reducing the engine temperature, hps is increased.....sort of like our cars run much better when humidity is low and were into the 30 and 40 ambient temp, the cooler the engine temperature the better it performs, too cold can also reduce performance, mid 190's is near perfect for these motors
for a 180 thermostat to be effective, the cooling fans will have to be set 20 degrees lower
I've run a 180* thermostat all winter here in Nebraska before, and I never threw a code. If you are that concerned about it, just adjust your fan settings to a higher temp with your tuner... problem solved. Then when it warms up put them back to how you had them before.I heard the 180 can throw codes in cold weather because it doesn't allow the car to reach temp fast enough or something like that..
I think what their saying is if you want the temps to run lower in regular intown driving you need to lower the fan settings.why do people keep saying you have to change the fan settings. NOT TRUE.
put one in mine and several other cars. car runs cooler!
In bumper to bumper traffic, it will run at the 210 range but once you start moving again, in town or on highway temps drop back down to 190's
buy one and try it.