By simply replacing your original dipstick with this Hot Oil Sensor and attaching the 18″ wire (included with the kit) to the oil pressure switch, you immediately begin to monitor your engine’s oil temperature. The oil pressure light at the bottom of your speedometer now serves two functions. Whilst continuing to monitor your oil pressure, it now provides the data from the Hot Oil Sensor as well. If your engine oil reaches 225 degrees Fahrenheit (107 degrees Celsius) the light will begin to flicker, indicating that you are approaching an unsafe operating temperature. Simply reduce your speed and the light will typically stop flickering, indicating that your oil temperature has fallen to a safe operating temperature once again. If your oil temperature continues to rise to 235 degrees Fahrenheit (113 degrees Celsius) the light will remain on solid. This is the temperature at which you should pull over, in order to investigate the issue.

The Hot Oil Sensor was created by Harold Brown in the late 1960s and remains virtually unchanged since the first one was offered for sale, over 50 years ago. Works in all air-cooled engines and is available from main stockists – and members, don’t forget to get your club discount!