ON PREVIEW TAPE # 991537 C This film was developed (probably) as an in-company training film for Shell Oil tank truck drivers in Canada and via one "Gil" the film demonstrates what should be done in their 8-minute "circle check"--i.e., Preventive Maintenance program. "Gil" goes through each step of the operation. Has some good footage of 1960 motor vehicle traffic in Canada. (One particular quirk is the scene in which the commentator is praising Gil's driving safety record as he pulls out of the terminal onto a busy street and barely misses being hit by a fast-moving vehicle.)