STPA MCU of the tail lights, and trunk compartments of several taxi cabs. WS of cars driving down a highway, in Texas, sunny hot weather overhead. ECU of a car engine (hood up), overheating. MS of a street corner, pedestrians crossing, Cab drives into view, from street level, past camera. ECU of STP Radiation Treatment fluid pouring into car engine. ECU of a cab passing (pan left) another overheated car on the side of the road. A Still CU of product in left half of screen. Narrator VO of benefits of using STP.