Quote Originally Posted by Mechanic View Post
Inuvik, Seven,
. . . . You don't want to do this. A cooler thermostat will not lower the maximum temp if the thermostat is working correctly. Seven you are correct in your assumption that it will only make the engine run cooler in cooler temperatures. I.E. Temperatures below 85F. The thing is is that these engines are designed to run at 190F. If you run them at 180 then they will burn more fuel and the engine wear will go up because of fuel washing oil off the cylinder walls. The higher the operating temperatures up to the point that things start to warp or when the oil temperature starts to exceed to 250 the better the fuel mileage. The answer is more airflow, lower under hood temperatures, and more cooling capacity, I.E. a bigger radiator. These radiators are just big enough for 100 or 105F. Higher than that and there just isn't enough cooling capacity! People who live in hot climates and don't take care of their cooling systems are going to have all kinds of problems when the car is 3 or 4 years old. IMO!!
GOD Bless and Thanks,
rich!
This is interesting. We don't really hear a lot from consistent high temperature regions. Mods: do we have any members from Arizona? Or the Middle East?