Oil temperature gauges can either be mechanical or electrical. Below is an example of each type of kit. The Lucas mechanical gauge kit consists of the gauge with capillary tube and sender unit (A), and adapter nut and sealing washer (B). The TIM electrical gauge kit consists of the gauge with wiring (C) —which may be mounted via brackets and fixing screws (D) or via an adhesive pad (E) — cable ties (F), sender unit (G), adapter nut (H), and nut, washers and terminal connector (I).
The working temperature of your engine is normally kept to an optimum level by the cooling syste...