**** 'em. Let them go bankrupt or go the way Caterpillar did. When nobody is building engines at all because they have too much pride to put their name on a piece of machinery they KNOW is junk, the ATA member fleets that embraced the new regulations might actually decide to use their clout to lobby for the repeal of this bullshit so someday, reliable truck engines may be built again.- The OEMs had to meet tailpipe emissions, OBD requirements and have monitoring to insure the systems are working. They also had to improve fuel economy to remain competitive.
- Trust me if the old engine architectures were capable of meeting the emissions, economy and durability requirements they would not have spent the BILLIONS developing new engine platforms. One thing a lot of people don't understand is the amount of effort goes into "in cylinder emissions reductions", meaning they shape how the combustion event occurs to avoid producing the emissions so they don't have to be treated. Can you imagine how many trucks the OEM must sell just to cover the development costs before they start making a profit???