LPG-fuelled tractor emit less 99% NOx than diesel equivalent during study at US port terminal

New data released from the U.S. Propane Education & Research Council (PERC) and New Jersey-based Port Newark Container Terminal (PNCT) shows that LPG-powered terminal tractors are significantly cleaner than their diesel counterparts in several key emissions reduction areas.

According to the testing, researchers collected emissions data from a MAFI-manufactured LPG terminal tractor and Tier 4 diesel technologies. The results confirm the first unit yielded 99% fewer NOx composite and idle emissions than either diesel tractor. Additionally, the LPG tractor produced 77.5% fewer THC idle emissions, 14% fewer brake-specific CO2 emissions, and 75% fewer TPM emissions than the diesel vehicles.

MAFI’s Autogas tractor is powered by Power Solutions International’s (PSI) 8.8-litre LPG engine, which is over 90% cleaner than mandated U.S. Environmental Protection Agency (EPA) standards and certified to the optional ultra-low NOx emissions standard as defined by the California Air Resources Board (CARB) for heavy-duty engines with .02 grams of per brake horsepower. Plus, the propane engine competes with diesel engines on performance, providing 270 horsepower with 565 lb-ft of torque.

“This near-zero emissions technology tractor is available now for an affordable price,” said Gavin Hale, vice president of business development at the Propane Education & Research Council (PERC). “LPG technology adoptions are continuing to grow throughout the country to eliminate diesel emissions and make significant strides toward greenhouse gas reduction.”

Not only are LPG-powered terminal tractors cost effective, there is also grant money available through the Diesel Emissions Reduction Act (DERA) to support the transition to clean Autogas fleet technology, according to Hale.

Source: PERC

24 May 2023