This temperature gauge replaces the original dipstick and it gives you valuable information about your engine oil temperature. Check the length of your original dipstick before ordering. Fits most R 2Valve models with the factory deep sump. There are no markings on the dip stick. We recommend that you set your oil level to the MAX marking with your original dipstick, then insert this gauge. Mark the dipstick for example with the edge of a file and then also mark the low level in the same way, comparing this part to your original dipstick. Readout in in degrees Celcius.