article thumbnail

EPA updates rules to ease commercialization of alternative fuel conversion systems

Green Car Congress

The US Environmental Protection Agency (EPA) has updated rules making it easier for manufacturers to sell fuel conversion systems—i.e., systems that alter a conventionally-fueled vehicle or engine to enable it to run on an alternative fuel. Exhaust, Evap, and OBD testing. MY >= current calendar year - 1.

article thumbnail

EPA Proposes to Streamline Approval Process for Fuel Conversion Systems

Green Car Congress

Conversion systems allow vehicles to run on alternative fuels; most conversions involve switching gasoline or diesel vehicles to operate instead on a gaseous fuel such as natural gas or propane; an alcohol fuel; or electricity. Exhaust, Evap, and OBD testing 2. Exhaust and Evap testing + OBD attestation.

article thumbnail

California ARB posts discussion document for developing Advanced Clean Transit (ACT) regulation

Green Car Congress

Urban bus fleets had to select either a diesel path or an alternative-fuel path. Agencies on the diesel path needed to meet requirements sooner, while agencies on the alternative-fuel path had to ensure that 85% of urban bus purchases were alternative-fueled.

Clean 150
article thumbnail

Scania unveils new heavy-duty global engine platform

Green Car Congress

Revisions include improvements on the intake and exhaust manifolds; EGR system; turbochargers; pistons and cylinder liners. Scania’s SCR (selective catalytic reduction) aftertreatment systems have also developed in several steps since the introduction in 2006. Alternative fuels.

Engine 186
article thumbnail

Volkswagen AG agrees to plead guilty and pay $4.3B in criminal and civil penalties; 6 execs and employees indicted

Green Car Congress

From 2006 until 2013, Dorenkamp led a team of engineers that developed the first diesel engine that was designed to meet the new, tougher emissions standards in the United States. VW engineers believed the increased stress on the exhaust system from being driven in the “dyno mode” could be the cause of the hardware failures.

article thumbnail

Polystyrene-Biodiesel Blends for Energy Recovery from Waste Plastics

Green Car Congress

However, emissions of NO x , soot, CO and hydrocarbons increased with polystyrene concentrations if the injection timing was free to advance due to the increased bulk modulus and fuel viscosity. The US generated 251 million tons of municipal solid wastes in 2006, of which plastics accounted for 11.7 million tons.

Waste 207
article thumbnail

Road Test: 2022 Acura RDX SH-AWD A-Spec Advance

Clean Fleet Report

The Acura RDX has been one of the best-selling compact premium SUVs since 2006, and has sold more than 50,000 every year since 2015. Managed by the large wheel on the center console, selecting one of the modes integrates specific driving dynamics that affect the throttle response, steering, suspension dampers, and the exhaust note.

Acura 77