I use nothing but the 50/50 sold at any store.But thank you for this! I will put the thermostat back on before working on the water pump. Just some buddies and my dad suggested that it works better without the thermostat and I have it a shot.
AMC/Jeep payed engineers a lot of money to design a cooling system that works the most efficiently it can. Just like every manufacturer also, A thermostat was designed to help the cooling system. Car manufactures don't like wasting money, they are trying to cut cost in every way they can to stay competitive in a market saturated with to many competitors. They are not going to waste one dime on putting something in a car that does not need to be if they can help it. The thermostat in a car is just as important as the radiator and water pump. Put a new one back in there and one rated to the temp that it came from the factory with. I believe it was 190. Also, How many miles is on the engine and is it the 4 or 6 cylinder. Has it been showing any signs of head gasket failure? Loosing coolant, sweet smell in the exhaust, not running smooth?
Yeah, that makes sense. I'll be putting one on this weekend. It's a 4.0 4x4 It hasn't been doing that. It runs very smooth. It has 140k miles on it. Someone had told me that the filter might be affecting it but I have a K&N Intake I just added last month so it's pretty new