Advanced science.  Applied technology.


Light-Duty Vehicle Emissions


Light-duty vehicle emissions focuses on research and development of exhaust emissions from passenger cars and light trucks, specifically as affected by conventional fuel composition, or the replacement of conventional fuels by alternative fuels such as natural gas, LPG, and alcohols. In addition, detailed exhaust characterization such as hydrocarbon speciation, measurement of air toxics, and sampling and analysis of particulate matter are conducted. Test cycles include those required by the Environmental Protection Agency (EPA) and California Air Resources Board (CARB), as well as the ECE and Japan. Off-cycle conditions (hard accelerations, high power absorption, and others) are also run, and test temperatures can be controlled from 20 to 120 °F (-12 to 49 °C).

Our strengths include off-cycle test conditions and temperatures, speciation and toxics, periodic testing during mileage accumulation, analytical procedure development, diesel and gasoline fuel property effects, lubricant property effects and fuel and fuel additive registration evaluations.

We also offer environmental technology verifications, spark and compression ignition engine fuel and additive effects, emissions at high and low temperatures, unregulated pollutant speciation and alternative and flexible fuel vehicle research and statistical analysis.