Unlike conventional thermostats that continually open and close to achieve the proper operating temperature and flood the engine with coolant, the Stant SuperStat® thermostat has a patented v-notch, non-linear design that reduces cycling by precisely metering the amount of coolant needed to maintain proper operating temperature.

The v-notch provides a small inital flow. As the engine heats up, the v-notch gradually opens wider, metering coolant into the system until the desired engine temperature is reached.

The benefits of proper engine temperature are:

• efficient engine operation, 
• prolonged engine life, 
• reduced oil consumption, 
• improved fuel economy 
• and reduced emissions.

Stant's SuperStat® uses a high flow venturi for maximum cooling capacity during high temperature, high load operation and employs a patented Weir Valve® for precise flow metering during cold weather, light load operation to ensure stable temperature control under all conditions.		The high strength stainless steel flange is burnished to a bright finish for additional stress relief and added corrosion resistance.		The Stant SuperStat® thermostat flange thickness of 0.040" is 33% thicker than our standard reverse poppet thermostat and up to 43% thicker than competition for added strength and longer life.
The power element of SuperStat® is comparable to those used in heavy-duty trucks. Its actuator piston is 25% larger in diameter than our standard thermostat and 56% larger than competitive product. This larger piston delivers 1 1/2 times the power of our standard thermostat and almost 2 1/2 times as much power as the competition for enhanced durability and longer life.			The opening spring of the Stant SuperStat® thermostat is designed with a load that is 50% stronger than our standard reverse poppet thermostat. This heavy-duty spring helps return the thermostat to the closed position and prevent cold running, even under the most adverse conditions.