Remove Economy Remove Exhaust Remove MPH
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 Analysis has focused on speeds of 50, 60, 70 and 80 mph. [ 50 to 60 mph.

article thumbnail

ORNL study quantifies fuel economy costs of common driver practices and vehicle alterations

Green Car Congress

Researchers at Oak Ridge National Laboratory (ORNL) have quantified the fuel economy effects of some common driver practices and vehicle accessories or alterations—including underinflated tires, open windows, and rooftop and hitch-mounted cargo. liter four-cylinder engine, also suffered as its fuel economy dipped 22% from 42.5

article thumbnail

New 3rd generation Audi TT diesel offers fuel economy of 56 mpg

Green Car Congress

The new sports car can accelerate from 0 to 100 km/h (62 mph) in 7.2 seconds and reaches a top speed of 235 km/h (146 mph). seconds, and on up to an electronically governed top speed of 250 km/h (155 mph). seconds; top speed is 250 km/h (155 mph); fuel consumption of 6.8 For the launch of the TT, the 2.0 quattro drive.

Audi 310
article thumbnail

Update on the ACCESS fuel efficient engine project; simulations find up to 48.9% improvement in fuel economy over baseline

Green Car Congress

Future advanced engine and powertrain configurations must address emission and fuel economy requirements for worldwide applications, transition to bio-fuels, and synergies with future powertrain trends. improvement in fuel economy over the baseline engine for the Metro-Highway (M-H) cycle. improvement in fuel economy over the baseline.

article thumbnail

Volkswagen boosts Beetle Turbo and Jetta GLI with EA888 Gen 3 engine; more power, improved fuel economy

Green Car Congress

seconds to accelerate from 0 to 60 mph, 0.2 Among the improvements on this engine are: a thin-wall crankcase casting; exhaust headers that are integrated into the cylinder head; smaller diameter main bearings; roller bearings for the twin balancer shafts; and a crankshaft that has four counterweights instead of eight.

article thumbnail

Simulation study suggests ORC waste heat recovery system could deliver potential 7% improvement in fuel consumption in a PHEV on highway

Green Car Congress

The analysis used the Ohio State University EcoCAR, a student prototype PHEV, as the basis for the preliminary fuel economy evaluation. On the other hand, it is well known that in an internal combustion engine up to 35% of the energy developed by the fuel combustion is dissipated in the exhaust gases. Skarke et al. Click to enlarge.

Waste 312
article thumbnail

Jaguar Introduces C-X75 Gas Micro-turbine Extended Range Electric Vehicle Concept

Green Car Congress

The plug-in, electric drive supercar has an all-electric range of 110 km (68 miles) plus a potential top speed of 330 km/h (205 mph), acceleration from 0-100 km/h (62 mph) in 3.4 seconds, and 80-145 km/h (50-90 mph) in 2.3 Advanced lightweight aluminium construction techniques provide weight-saving and economy benefits.