DEPO RACING OIL PRESSURE GAUGE [BAR] WITH PEAK FUNCTION 60MMDepo Racing Gauges. Depo Racing started as an OEM for vehicle manufacturers and other brands wanting high quality gauge instruments. In 2007, Depo Racing decided to use their experience and knowledge to create a new Performance Gauges division. These gauges use high quality materials and Japanese Stepper Motor technology for fast and accurate needle movement. They are available in a vast range of applications to monitor pressure, temperature, voltage,