Petroleum depots and service stations are one of the most dangerous sites due to the existence of the toxic and high volatile petroleum products in the form of liquid and gas. This paper seeks to evaluate the impact of using computerized Poka Yoke by Zimbabwe Petroleum industry from the point of loading, to transportation, to offloading, storage and selling of these products to customers. Companies have employed various ways to eliminate or reduce the risks. A survey of six petroleum companies was conducted. The results revealed that incidents could be reduced by 28.6% if Shigeo Shingo Poka Yoke is employed.