![paccar](https://img.overdriveonline.com/files/base/randallreilly/all/image/2011/02/ovd.paccar.png?auto=format%2Ccompress&q=70&w=400)
Peterbilt Tuesday announced that the next-generation of Paccar engines, designed to comply with the EPA’s 2013 emissions standards will be available in all of the truck maker’s medium and heavy-duty models starting in 2013.
The Paccar MX-13, PX-9 and PX-7 are profiled on Overdrive sister site CCJ — click here to see that article; the engine line is designed for better fuel economy and lower cost of ownership, says Peterbilt.