Isuzu Motors Limited is committed to tackle global environmental pollution as its most critical management issue. In particular, the company is putting its efforts into the development of clean diesel engines.
Invented more than a century ago, the diesel engine is an extremely flexible internal combustion system that has long been an indispensible power source for use in a wide variety of applications ranging from cars, trucks, trains and ships to various industrial machinery. In line with its growing popularity, however, diesel engine technology has presented its manufacturers with difficulties to achieve progressively cleaner exhaust gas emissions.

Isuzu is developing low-pollution vehicles using alternative energy sources or hybrid systems to reduce emissions. Such vehicles are not only a vital step toward achieving lower emissions of pollutants, they will also contribute to the more effective utilization of limited resources.

Compressed Natural Gas (CNG) Vehicles

The CNG-powered engines emit very low NOx carbon monoxide (CO) and hydrocarbons (HC) and virtually no particulate matter (PM) at all. Another characteristic of natural gas, of which the main constituent gas is methane, is that it produces very little CO. Isuzu produces three-way catalytic converter-equipped CNG vehicles that achieve an excellent low-pollution emission performance.