TOKYO—Toyota Motor Corp. will begin using Yokohama Rubber Co. Ltd.'s teflon hose piping for oil supply lines in the new Hilux light commercial truck, which is fitted with Toyota's GD engines.

A comment to one of my recent posts said: "Hey you wanna do a story? Try researching Teflon and what the FDA's special group studying it has been up to and what the manufacturer has been doing. Then ...