Changing emissions standards are threatening the few manual transmission vehicles left on the market. New rules have been proposed, and some are being implemented, that would limit vehicle movement ...

Last month we began our discussion of emission systems by examining various crankcase and fuel vapor control devices, along with throttle and carburetion equipment aimed at reducing automotive exhaust ...

In the past two months we've covered most of the emission systems that have appeared on recent automobiles. This month we'll conclude our discussion of these systems with those devices designed to ...