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

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The results for the SUV pulling a 3,500 pound enclosed cargo trailer were significant, resulting in FE penalties ranging from 30%, for the city cycle, to 50% at 80 mph (129 km/h), at which point significant CO generation indicated protective enrichment due to high load. l/100 km) at 60 mph (97 km/h) to 33 mpg (7.1 l/100 km).

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Study finds 6.3% spread in fuel economy obtained with maximum and minimum rolling resistance tires

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market (maximum speeds for each of these types of speed-rated tires are 118 mph, 130 mph and 149 mph, respectively). mpg (RRf at 8.1 mpg (RRf of 12.1 mpg (RRf at 9.9 mpg (RRf at 8.1 mpg (RRf of 12.1 mpg (RRf at 9.9 with a median of 10.28 and a minimum of 20.9 with an average of 21.6

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

Green Car Congress

One tip is that drivers should obey the speed limit since the fuel economy of most vehicles decreases above 50 mph [80 km/h]. ORNL staff members John Thomas, Shean Huff and Brian West have worked to quantify this trend through analysis of dynamometer testing results for 74 vehicles at steady-state speeds from 50 to 80 mph [80 to 129 km/h].

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New top model PHEV in the BMW 5 Series

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Maximum system torque is 600 N·m and top speed is reached at 250 km/h (155 mph), while a speed of 140 km/h (87 mph) is possible in purely electric operation. Power is distributed as required to all four wheels via an 8-speed Steptronic transmission and intelligent BMW xDrive four-wheel drive.

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Audi introduces Q7 e-tron quattro diesel PHEV SUV at Geneva; 138 mpg US

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US mpg) and has a CO 2 emission level of less than 50 grams per kilometer (80.5 Charging as well as the preliminary air conditioning can also be time-controlled and adapted to the customer’s requirements, such as departure time, so as to save resources and costs. mph) if the traffic is slow-moving. tron quattro needs only 1.7

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Study finds NYC Clean Air Taxi rules successful in cutting pollution

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mpg, and corresponding estimates of nitric oxide (NO) and total particulate (PM T ). —Dustin Fry, MPH, a researcher at Drexel University Dornsife School of Public Health. The findings are published in the Journal of Exposure Science & Environmental Epidemiology. exhaust emissions declined by 82% and 49%, respectively.

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Looking to get in a hybrid for cheap? Used Toyota Prius 1.5 HSD 2004-2009 Review

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Used Priuses, especially the Generation 2 that were made from 2004 to 2009 are becoming a bargain to buy, especially for the MPG and features you get in return. The official fuel consumption is 5 l/100 km (47 mpg US) and that is bang on for us as well. l/100 km (51 mpg US) in the summer, and 5.3 l/100 km (44 mpg US) in winter.

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