The Propane Education & Research Council shares its perspective that propane is simpler, cleaner, and more cost-effective to maintain than many fleet owners may expect.

On the other hand, diesel's can produce copious amounts of particulate matter, primarily soot, as evidenced by the thick black smoke rolling from the exhaust of diesel-powered trucks at times.

They could eventually get — gasp! — particulate traps, the expensive, heavy and bulky devices first feared in the early 1990s, when exhaust emissions rules seemed impossible to meet.

HEPA stands for high-efficiency particulate air. A HEPA filter is a type of mechanical air filter; it works by forcing air through a fine mesh that traps harmful particles such as pollen ...

Boysen USA develops and manufactures exhaust manifolds, catalytic converters, particulate traps, silencers and complete exhaust systems for leading original equipment manufacturers. The company ...