Thanks for your informed comments Dave. My whole career was spent relative to the development of emission control systems, starting with Chrysler where I learned a lot, and then carried on after that. I saw it all and was a part of it. My focus was on development of gasoline emission control systems, and I worked with industry and government to achieve solutions. The early years of gasoline emission controls were fraught with problems and some of the vehicles produced, particularly by Chrysler were among the worst. But better solutions evolved and today, new vehicles perform incredibly well and fuel economy is now a strong point, and they really are clean especially in terms of pollutants that affect air quality. And the typical vehicle can go well into the 250K miles range before being retired. The path was arduous, but it had to be taken. And it succeeded.
Where I differed with the govenmental programs was in requiring retrofit systems to "improve" trucks already on the road to perform more like the new ones. Huge mistake. Those systems never worked well, and trying to retrofit older vehicles was just stupid. Vehicles have to be designed as systems from the ground up. Trying to do it otherwise just made enemies of the folks who were needed to support further development, like yourself. The public took a huge hit because of them. But some bureaucrats had more power than brains. But those actually developing the new standards were well informed and worked with the industry the way government should work. Very little B.S. and straight talk among both sides. I was there to watch it all.
Diesel is a tougher nut to crack because some of the characteristics of the fuel that make it such a great workhorse also complicate greatly the clean up process. But progress continues even today. And like gasoline, it is evolving to relying on allowing the diesel engines to run at optimum performance and fuel economy and let the control equipment clean up the mess. But the clean up equipment is much more complex and therefore is taking longer to perfect.
And since governments do depend on science and technology to make decisions regarding our environment, similar developments are going on to lower CO2 emissions. So the next step is electric vehicles ultimately fueled by renewables as a longer term solution to the warming issue. And maybe better solutions will emerge along the way.
I respect California government because it took a leadership role in solving the smog problem that plagued the state, and everyone benefitted. And they did so well in advance of any action by the federal EPA. Most also do not realize that the regulations that control the check engine light in all new vehicles in this country and elsewhere around the world were developed by the California Air Resources Board, with an emphasis on monitoring everything on the vehicle that can affect emissions when they go wrong. Most have no idea the pushback that industry made to kill those requirements. Industry didn't want their own cars telling owners when they broke. But California prevailed, and industry had no choice but to make their cars more durable to avoid that pesky light from coming on. California today is the only agency that still governs those requirements, not the EPA, except in terms of recall efforts. California ARB engineers were the ones to figure out what VW had done to shut down their diesel emission control systems under actual driving conditions and operate only during official certification testing. VW is still paying on that stupid effort, and it has cost them more than $30 billion so far and the cost continues to climb after their debacle came to light several years ago.
And try to find a broken component in the electronic powertrain control systems in all of todays cars without the on-board diagnostic system requirements that California developed. The system has saved consumers a lot of money when it comes to diagnosing and then fixing some of these electronic wonders. Without it, most techs would be throwing parts at a problem with little success today.
I believe we share similar viewpoints on many things including healthcare in this country. We can and should do better. Thanks for your thoughts!