OEM thermostats are typically 195°-200°. Any engine performs better in the 160°-170° range. A cooler running engine also requires less octane (10°-15°=1 octane) which is beneficial to supercharged or turbocharged engines (-20° engine coolant = 1 psi boost). Kenne Bell Thermostats are all pre-calibrated for accuracy as they must operate in conjunction with the engine's computer fan settings (see WARNING below).

WARNING! There are many suppliers who do not understand the relationship between the thermostat and electric fan in the newer vehicles. These people are living in the '60's with mechanical fans. Merely installing a thermostat will not lower engine temperature on a hot day. Why? The computer has programmed the fan on-off settings far beyond 160°. Example: "On" 215° and "Off" 190°. The fan won't even activate and try to cool the engine until the coolant temp is 215° so the 160° thermostat setting is useless. Answer? The engine computer must be re-programmed for lower temperature on-off settings. Example: "On" 166° and "Off" 162°. Now the fan and thermostat work in harmony to keep the engine cool. How? There's only one way - the Kenne Bell "Switch Chip" (Ford), Kenne Bell "OPTIMIZER" (Chrysler) - or a similar product - that can re-calibrate the fan.
*180 Degree (stock is 195). 160 degrees can create problems in these engines.



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