ac45 - 3/4/2019 11:49

The bridge engine was a " bridge"in the emissions gap from the older engines to the acert engines. Cat was paying like $2500 fine per engine they were selling. The bridge engine had reduced emissions but still not 100 percent epa legal. I beleive they were trading emissions credits and paying fines. And this engine helped. Reduce that. I'd assume that it would probably not have the fuel economy of the earlier engines.