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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. Brief summary of vehicle data.

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Study concludes that automakers tweak vehicle fuel economy to qualify for more favorable treatment; focus on car notches

Green Car Congress

In response to federal policies to boost gas mileage, manufacturers have changed vehicle weights, improved tire-rolling resistance and added aerodynamic features to push fuel-economy rates past government-mandated thresholds. Car notches are the small trigger points in the numerical values of fuel economy (say, the difference between 22.5

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Hagens Berman files class-action fuel economy and emissions lawsuit against Fiat Chrysler and Cummins over SCR defect in RAM 2500 and 3500 diesels

Green Car Congress

The defect leads to lower fuel economy, non EPA-compliant emissions levels, and costly and frequent vehicle repairs, the complaint charges. This reduces the truck's fuel economy, according to the complaint.

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Junkyard Find: 1987 Chevrolet Sprint ER

The Truth About Cars

What was the most fuel-efficient (mass-produced, internal combustion-powered, highway-legal, non-gray-market, four-wheeled, et freakin' cetera) new car available in the United States during the 1980s? It appears that this engine was not legal for sale in high-altitude areas.

Chevrolet 105
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U-M study finds current CAFE standards create profit incentive for larger vehicles

Green Car Congress

The current vehicle footprint-based Corporate Average Fuel Economy (CAFE) standards create a financial incentive for automakers to increase vehicle size, except under certain limited conditions of consumer preference for vehicle size, according to a study by University of Michigan researchers Kate Whitefoot and Steven Skerlos. 10 11 –5.17×10

Standards 240
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News: 2023 Toyota and Lexus New Products

Clean Fleet Report

Clean Fleet Report has tested many Toyota hybrid models and know this fuel economy number can easily be topped, getting in the 40+ mpg range. With the change comes an increase in horsepower from 139 to 169, faster 0-60 mph by two seconds and fuel economy increased to 31 mpg city/40 highway/34 combined. GR Cup Series.

Lexus 82
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US House Members Introduce Bipartisan Disapproval Resolution to Block EPA Regulation of GHG; Mirrors Murkowski Resolution

Green Car Congress

The resulting set of new standards will cover model years 2012-2016, and will require an average fuel economy standard of 35.5 mpg in 2016 (39 mpg for cars, 30 mpg for trucks), or approximately 250 grams CO 2 /mile.

EPA 191