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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

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Cummins/Peterbilt SuperTruck shows 54% improvement in fuel economy, 61% improvement in freight efficiency

Green Car Congress

The new SuperTruck achieved a 54% increase in fuel economy. and Peterbilt Motors Company, a division of PACCAR, released test results showing their demonstration SuperTruck tractor-trailer achieved a 54% increase in fuel economy, averaging nearly 10 mpg US (23.5 Sources of increased engine thermal efficiency.

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Cummins progressing with lightweight downsized T2B2 diesel for pickup; 40% improvement in fuel economy over gasoline V8

Green Car Congress

At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fuel economy (CAFE) target of 26 mpg (9.05 l/100 km), and as such would not meet the GHG requirement of 28 mpg (8.4 Earlier post.).

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2022 Rogue to feature Nissan’s all-new 1.5-liter VC-Turbo variable compression engine

Green Car Congress

Nissan introduced a new Rogue SUV for the 2021 model year; for 2022, Nissan is making its best-selling model more powerful, more fuel-efficient and more fun to drive with an all-new, 1.5-liter liter variable compression (VC) Turbo engine across the Rogue lineup. 2022 Nissan Rogue. Earlier post.) New generation Xtronic transmission.

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DOE: in 2018, 27% of new light-duty vehicles in US had fuel economies > 30 mpg

Green Car Congress

In 2018, 27% of new light-duty vehicles sold in the US had fuel economies of more than 30 miles per gallon (783 l/100 km), according to the US Department of Energy (DOE). By contrast, none of the light-duty vehicles produced in 1975 had fuel economy greater than 30 miles per gallon (mpg). In 1995, 4.4% Source: U.S.

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2022 Audi A3 now on sale in US with standard 48V MHEV; 24% better combined fuel economy in A3 40 TFSI quattro

Green Car Congress

liter TFSI engine, generating a maximum 201 horsepower and 221 lb-ft of torque. Augmented by a standard 48-volt mild-hybrid (MHEV) system, a first for the model, it has the ability to coast automatically with the engine temporailly shut off in many driving situations. That benefits the A3 with increased fuel efficiency.

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

Green Car Congress

The new TT and TTS models will be available with three different four-cylinder engines with turbocharging and direct injection. Standard fuel consumption is 4.2 liters per 100 km (56 mpg US), which translates into CO 2 emissions of 110 g/km (177 g/mile). seconds; top speed is 250 km/h (155 mph); fuel consumption of 6.8

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