Does the 180 overheat more readily?
In August, 2004, Leigh O wrote “The 180 seems to overheat very easily. Even on a freezing cold night the temp climbs.” … and Jason N added “Would using a higher grade coolant in the radiator help? Guys in the HK Pug forum talk about using a higher grade coolant called a “water wetter”. Apparently it keeps the gauge needles down.” A: Any liquid-cooled car engine has a small device called a thermostat sitting between the engine and the radiator. The thermostat in most cars is about 50 mm in diameter. It blocks the flow of coolant to the radiator until the engine has warmed up. When the engine is cold, no coolant flows through the radiator, only through the engine and heater radiator inside the cabin of the car. Once the engine reaches its operating temperature of 85-95 C), the thermostat opens. By letting the engine warm up as quickly as possible, the thermostat reduces engine wear, deposits and emissions. The secret of the thermostat lies in the small cylinder located on the engine-si
