Remove Comparison Remove Exhaust Remove Fuel Economy Remove Light
article thumbnail

ORNL researchers quantify the effect of increasing highway speed on fuel economy

Green Car Congress

This website, jointly maintained by the US Department of Energy and the US Environmental Protection Agency (EPA), provides information such as official EPA “window label” fuel economy estimates for city, highway, and combined driving for all U.S.-legal legal light-duty vehicles from 1984 to present. Speed increase.

article thumbnail

GM: new Sierra 5.3L V-8 EcoTec3 highway fuel economy tops Ford EcoBoost V-6

Green Car Congress

In addition to highway fuel economy estimates that are 2 mpg higher than a 2013 Ford V8 pickup equipped with a 5.0L 2WD Pickup truck fuel economy comparisons. In addition to highway fuel economy estimates that are 2 mpg higher than a 2013 Ford V8 pickup equipped with a 5.0L Fuel economy.

Sierra 262
article thumbnail

CPT, TU Wien study finds 48V mild diesel hybrid cuts engine-out NOx 9%, 4.5% fuel economy improvement

Green Car Congress

A joint study by Controlled Power Technologies (CPT) and Austria’s Technische Universität Wien (TU Wien) into 48V diesel mild hybrid technology verified a 9% reduction of NO x in raw engine-out emissions, while retaining the fuel economy and CO 2 benefits of diesel engine technology. —Paul Bloore.

article thumbnail

Light duty RCCI can deliver engine-out Tier 2 Bin 5 NOx; potential for 52% gross indicated efficiency

Green Car Congress

Rolf Reitz of the University of Wisconsin found that reactivity controlled compression ignition (RCCI) ( earlier post ) in a light-duty engine can meet Tier 2 Bin 5 NO x levels without aftertreatment, while offering a 4% improvement in fuel consumption and 7.3% Earlier post.). —Kokjohn and Reitz. Sage L Kokjohn and Rolf D.

Light 207
article thumbnail

Progress on ATLAS: Cummins’ Tier 2 Bin 2 light duty diesel project

Green Car Congress

Cummins is one year into a four year program (ATLAS, Advanced Technology Light Automotive Systems) to develop, in partnership with the US Department of Energy (DOE), a new light-duty diesel truck engine that will meet Tier 2 Bin 2 (SULEV) emission requirements while achieving at least a 40% fuel economy improvement (26.1

Light 199
article thumbnail

455 hp 2014 Corvette Stingray to deliver EPA-estimated 29 mpg highway

Green Car Congress

The estimate reflects an average of fuel economy in both the default “Tour” mode, which delivers 28 mpg highway, and driver-selectable “Eco” mode, which delivers 30 mpg highway. Fuel economy estimates for Corvette Stingrays equipped with the six-speed automatic will be finalized soon.

MPG 239
article thumbnail

Emissions testing shows Lighting Hybrids hydraulic hybrid drive delivers significant reduction in NOx, up to 18% improved fuel consumption

Green Car Congress

Broadly, the test results show significant reductions in NO x , particularly against a non-hybrid diesel baseline, and fuel economy improvements of up to 18% for the vehicle and under the drive cycles tested. Exhaust gases were captured in order to measure the vehicle’s emission of carbon dioxide (CO 2 ) and NO x.

Hybrid 150