Green Car Congress

AUGUST 16, 2022

PACCAR will work with Cummins to offer the new Cummins X15N natural gas engine ( earlier post ) in Kenworth and Peterbilt trucks. The X15N is the first natural gas engine to be designed specifically for heavy-duty truck applications with up to 500 horsepower output.

Peterbilt 459

Peterbilt Kenworth Gas Engine 459

Green Car Congress

JULY 6, 2010

The Westport GX 2010 15L engine has been certified by the US Environmental Protection Agency (EPA) to 2010 emissions compliance—0.2 Factory installation of the GX is available in both Kenworth and Peterbilt tractors. g/bhp-hr oxides of nitrogen (NO x ) and 0.01

2010 186

2010 EPA Engine Peterbilt 186

Green Car Congress

DECEMBER 10, 2013

unveiled its next generation of high pressure direct injection natural gas technology platform, Westport HPDI 2.0. Westport HPDI uses natural gas as the primary fuel in a Diesel (compression ignition) cycle along with a small amount of diesel fuel as an ignition source. The natural gas is injected at the end of the compression stroke.

Gas 220

Gas Diesel Fuel Economy Engine 220