Tips: 6 Ways to Increase Your Fuel Economy

Clean Fleet Report

But how can you increase your fuel economy? Surprisingly, the number of items you carry in your vehicle can have a meaningful impact on your fuel economy. It’s simple math when you think about it: The heavier your vehicle is, the more power it needs to move.

PNNL team develops onboard fuel separation technology to enable octane-on-demand for improved fuel economy

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Researchers at the US Department of Energy’s Pacific Northwest National Laboratory (PNNL) have developed an onboard separation system that could support increased fuel economy and lower greenhouse gas emissions as part of an octane-on-demand fuel-delivery system.

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NHTSA to propose new fuel economy standards soon; 8% increase per year for MY 2024-2026

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The US Department of Transportation’s National Highway Traffic Safety Administration (NHTSA) announced that it will soon propose robust new fuel economy standards. The new standards would increase fuel efficiency 8% annually for model years 2024-2026 and increase the estimated fleetwide average by 12 miles per gallon for model year 2026, relative to model year 2021. Fuel Efficiency Market Background Regulations

EPA fuel economy report finds weight and power leveling off, footprint stable

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EPA recently released the latest edition of its annual report Light-Duty Automotive Technology, Carbon Dioxide Emissions and Fuel Economy Trends. The report is the authoritative reference for real-world fuel economy, technology trends and tailpipe carbon dioxide emissions, for new personal vehicles sold in the US every year since 1975. The report found that fuel economy for the US fleet continues to improve. Engines Fuel Efficiency

2018 221

EPA’s annual automotive trends report shows slight increase in fuel economy from MY2017 to MY2018

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In the US, Model Year (MY) 2018 vehicle fuel economy was 25.1 Since MY 2004, CO 2 emissions have decreased 23%, or 108 g/mi, and fuel economy has increased 30%, or 5.8 Tesla improved fuel economy (as measured in miles per gallon of gasoline equivalent, or mpge).

2020 209

Gen 3 Ecodiesel in 2020 Ram 1500 EcoDiesel delivers 480 lb-ft, leading fuel economy

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The 2020 Ram 1500 will become the most powerful half-ton diesel pickup in the US, with 480 lb-ft (651 N·m) of torque, and the most capable light-duty diesel, with towing capability up to 12,560 pounds. The all-new third-generation 3.0-liter V-6 EcoDiesel is also expected to lead the segment on fuel economy. Pricing and fuel economy ratings will be announced closer to the truck’s on-sale date.

2019 192

Volkswagen prices 2017 e-Golf starting at $30,495; longer range, better fuel economy, more power

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Improved battery chemistry also helps improve the overall fuel economy of the 2017 e-Golf. For city driving, the EPA estimated fuel economy is 126 MPGe; highway driving is rated at 111 MPGe; and combined city/ highway at 119 MPGe, improved over the 2016 EPA estimates of 126, 105 and 116, respectively. Fuel consumption for the 2017 model is 28 kWh/100 miles, compared to 29 kWh/100 miles for the 2016 model. Volkswagen of America Inc.

2017 183

Studies highlight effects of different gasoline components on fuel economy, combustion and emissions

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Researchers at Jilin University (China) have investigated the effect of gasoline components on fuel economy, combustion and emissions in a GDI (gasoline-direct-injection) engine. The team subsequently followed up this first study with a second, exploring the effects in a PFI (port-fuel-injection) engine. 2018a) is published in the journal Fuel , the second (Han et al. 2018b) in the ACS journal Energy & Fuels. 100 N·m, power ?

2018 174

ORNL study finds multi-mode RCCI can offer 15%+ fuel economy improvements across multiple light-duty driving cycles

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Drive cycle fuel economy for PFI, CDC, and multi-mode RCCI operation. Among their findings were that multi-mode RCCI has the potential to offer greater than 15% fuel economy improvement over a 2009 gasoline PFI baseline over many light-duty driving cycles, despite the lack of complete drive cycle coverage for RCCI mode. During RCCI-only operation, fuel usage was found to be between 57 and 69% gasoline. Dual-fuel RCCI injection strategy.

2015 191

Cummins ATLAS light-duty diesel surpasses fuel economy targets, with criteria emissions lower than Tier 2/Bin 2

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The Advanced Technology Light Automotive Systems (ATLAS) program ( earlier post ) was initiated to develop a commercially viable diesel engine for the half-ton pickup truck market that is capable of meeting future Tier 2 Bin 2 emissions regulations and Corporate Average Fuel Economy (CAFE) and stringent greenhouse gas (GHG) requirements out to the year 2025. —Michael Ruth, Director/Technical Project Leader, Advanced Light-Duty. Test cycle fuel economy (mpg).

2015 179

GM to introduce strong hybrid version of Malibu; combined fuel economy above 45 mpg; leverages Volt

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Using technology from the 2016 Chevrolet Volt propulsion system ( earlier post ), Malibu Hybrid will offer an estimated combined fuel economy rating exceeding 45 mpg (5.22 4-cylinder engine mated to a two-motor drive unit slightly modified from the 2016 Chevrolet Volt drive unit powers the Malibu Hybrid. The drive unit provides additional power to assist the engine during acceleration, for 182 horsepower (136 kW) of total system power.

2015 242

New 2019 Toyota Avalon hybrid boosts fuel economy 10% to 44 mpg combined

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Toyota has introduced its new fifth-generation Avalon, based on a Toyota New Global Architecture (TNGA) platform, and powered by two new TNGA powertrains: a 301 hp, 267 lb-ft (362 N·m) 3.5-liter V6 (2GR-FKS), and a 215-net-horsepower 2.5-liter Dynamic Force ( earlier post ) four-cylinder Toyota Hybrid System II (THS II) with 650V electric motor (A25A-FXS) and Continuously-Variable Transmission (CVT). The TNGA-derived V6 develops more power with less fuel consumption than before.

2018 174

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

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Huff Fuels, Engines and Emissions Research Center, Oak Ridge National Laboratory. 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. drop in fuel economy due to traveling 80 mph rather than 70 mph. John F.

2013 267

NREL thermal management system greatly increases power density of SiC inverters in heavy-duty applications

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A thermal management system developed by the National Renewable Energy Laboratory (NREL) in collaboration with John Deere promises to increase the power density of silicon carbide (SiC) inverters within heavy-duty EV applications significantly.

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2016 Ford Explorer SUV replaces 2.0L EcoBoost with new 2.3L EcoBoost unit; more power and torque, same fuel economy expected

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EcoBoost four-cylinder it replaces, with no compromise in fuel economy anticipated. New 2.3-liter EcoBoost delivers more power and torque than the outgoing 2.0L EcoBoost but with expected same fuel consumption. While EPA results are not yet certified, Ford anticipates no sacrifice in overall fuel efficiency. An active wastegate controls boost more precisely during light load operation to help save fuel.

2014 216

AAM develops new axle technology; lighter, more efficient for up to 1.5% better fuel economy

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QUANTUM driveline technology is scalable across a wide range of vehicle segments and provides substantial advantages regardless of vehicle size: reduced mass, increased power density, improved noise vibration and harshness (NVH) and fuel efficiency gains in a more compact system package. improved vehicle fuel economy, AAM said. QUANTUM offers a 20% increase in power density along with a minimum 30% mass reduction at the same torque capacity.

2017 174

Ford unveils new Focus; 10% better fuel economy; focus on tech; gasoline and diesel

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The new Focus features a broad suite of Ford advanced driver assistance technologies and advanced EcoBoost gasoline and EcoBlue diesel engines offering a 10% fuel-efficiency improvement across the range. Core EcoBoost technologies including advanced turbocharging, high-pressure direct fuel injection and Twin-independent Variable Cam Timing, also feature for both engines. A high-pressure fuel injection system that is more responsive, quieter, and offers more precise fuel delivery.

2018 174

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

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Cummins reports that it, along with partners Johnson Matthey and Nissan, is on plan in a 4-year, $30-million ($15 million from the US Department of Energy) research project to deliver a light-duty diesel engine with fuel economy 40% improved over that of baseline gasoline V8 engine for a half-ton pickup truck while also meeting the requirements of US Tier2 Bin2 tailpipe emissions. Fuels Lubr. Diesel Emissions Engines Fuel Efficiency

2014 286

Toyota announces expected fuel economy and pricing for RAV4 Hybrid: 33 mpg combined, entry at $28,370

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The system varies power between the gasoline engine and electric motor, or combines both as needed, all seamlessly. The RAV4 Hybrid offers a choice of several driving modes: ECO mode optimizes throttle response and air conditioning output to help prioritize fuel economy. A Hybrid System Indicator and fuel consumption indicator, located in a 4.2-inch TFT screen, helps coach the driver to operate the vehicle as economically as possible. Fuel Efficiency Hybrids

2015 205

Researchers find consumers compensate for fuel-efficient car by buying bigger second vehicle; losing 60% of fuel economy savings

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An analysis by a team from the University of California, Davis, MIT and Yale suggests that households that buy a fuel-efficient vehicle tend to compensate for that purchase by buying a bigger, more powerful second vehicle. This unintended effect could erode goals of fuel economy standard policies by up to 60%. For example, households may prefer to have one SUV and one sedan, or one powerful vehicle and one fuel-efficient vehicle. Behavior Fuel Efficienc

2017 150

Road Test: 2021 Cadillac Escalade Duramax 4WD

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Flagship SUV Gives Smooth Luxury, Powerful Diesel Performance. If you are looking for comfort, versatility, great looks, a very accommodating and large interior, some innovative features and surprisingly good fuel economy, the 2021 Cadillac Escalade is for you.

EPA annual trends report finds new vehicle fuel economy at record 24.1 mpg; new powertrain technologies rapidly gaining share

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EPA released the latest edition of its annual report on trends in CO 2 emissions, fuel economy and powertrain technology for new personal vehicles in the US. Fuel economy has now increased in eight of the last nine years; average carbon dioxide emissions are also at a record low of 369 g/mile in model year 2013. The report also noted that: Since alternative fuel vehicle production [CNG, PHEVs and EVs] has generally been less than 0.1% Fuel economy.

2014 199

New UMTRI report on US vehicle fuel economy from 1923-2013 suggests need to focus on improving lower tails in each vehicle class

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In a new report, researchers at the University of Michigan Transportation Research Institute (UMTRI) have calculated the actual, on-road fuel economy for the entire fleet of all vehicles in the US, and for different classes of vehicles, with primary interest in light-duty vehicles (cars, pickup trucks, vans, and SUVs), between 1923 and 2013. The main findings from the analysis are that fuel economy decreased from 14.0 Light trucks. Fuel Efficiency

2015 212

NREL analysis of Proterra electric bus demo finds average fuel economy nearly 4x that of CNG baseline buses

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Proterra battery-electric buses in service in a 12- vehicle demonstration by Foothill Transit in California offered significant fuel savings compared to similar conventional vehicles, according to a recently published analysis of the results of the demonstration by the National Renewable Energy Laboratory (NREL). The baseline CNG buses had an average fuel economy of 4.04

2016 217

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

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In addition to highway fuel economy estimates that are 2 mpg higher than a 2013 Ford V8 pickup equipped with a 5.0L Ti-VCT V-8 and 3 mpg higher than a Ram V8, Sierra’s new V-8 highway fuel economy estimates also measure higher than those of the 2013 Ford F-150 EcoBoost V-6 (23 mpg for the Sierra, 22 mpg for the Ford EcoBoost F-150), GM noted. 2WD Pickup truck fuel economy comparisons. Fuel economy. Power (hp). Engines Fuel Efficienc

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Subaru introduces 5th-gen AWD Outback with up to 10% improvement in fuel economy

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The 2015 all-wheel drive Outback offers the roomiest interior, most capable chassis and highest fuel-efficiency in the model’s 20-year history. New for 2015, all Outback models come standard with the Lineartronic CVT (continuously variable transmission), which features paddle-shift control switches and is instrumental in the Outback’s significantly improved fuel economy. Power is increased slightly, to 175 hp (130 kW) vs. 173 hp (129 kW) before. 2015 Outback.

2014 199

Fraunhofer characterizes Alphabet Energy thermoelectric PowerCard; up to 5% fuel economy improvement in automotive

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Alphabet Energy is commercializing low-cost, efficient thermoelectric materials for power generation leveraging technology initially developed at the Lawrence Berkeley National Laboratory. The company has now announced characterization from the Fraunhofer Institute for Physical Measurement Techniques IPM of heat flow and thermal resistance (in air) of the Alphabet Energy PowerCard , the company’s core thermoelectric device for power generation.

2016 183

Pinnacle 4-stroke opposed-piston SI engine shows fuel economy improvements of between 30-60% at light loads, 12-30% at medium loads over conventional

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Pinnacle Engines, the developer of a high compression ratio, four-stroke, spark-ignited (SI), opposed-piston, sleeve-valve architecture engine ( earlier post ) reports that the most basic configuration of its engine has shown improvements in indicated specific fuel consumption (ISFC) of between 30-60% at light load and 12-30% at medium-load compared to a comparably sized conventional poppet-valve technology engine. Comparison of ISFC (@42.9

2012 248

2011 edition of EPA Fuel Economy Trends report shows several advanced powertrain technologies making significant gains

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Light duty vehicle characteristics for seven model years. The average fuel efficiency for new cars and light duty trucks has increased while the average carbon dioxide (CO 2 ) emissions continue to decrease for the seventh consecutive year, according to the 2011 edition of the US Environmental Protection Agency’s (EPA) annual report, “Light-Duty Automotive Technology, Carbon Dioxide Emissions, and Fuel Economy Trends: 1975 Through 2011.”. Fuel Efficienc

2012 204

Tenneco/Gentherm showcasing prototype of thermoelectric generator for waste heat recovery; targeting 5% fuel economy improvement

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Tenneco and Gentherm (formerly BSST/Amerigon) are part of a US Department of Energy (DOE) consortium actively developing a thermoelectric generator (TEG) for capturing waste exhaust heat in vehicles and converting it to electrical energy to be used to power electrical systems within the vehicle. The first rapid prototype of their Thermoelectric Generator (TEG) for light vehicle applications is on display at Tenneco’s booth at the 2013 Frankfurt IAA Motor Show.

2013 191

Ford to offer cylinder deactivation for 1.0L EcoBoost in 2018; 6% fuel economy boost; global first for a 3-cylinder

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liter EcoBoost gasoline engine with innovative cylinder deactivation technology for further reducing CO 2 emissions and improving fuel efficiency by up to 6%. EcoBoost with cylinder deactivation will debut in early 2018, becoming the first production three-cylinder engine with that fuel-saving feature. Engines Fuel Efficiency Vehicle SystemsFord will offer the multi-award-winning 1.0‑liter

2016 203

Major refresh on 2015 Honda CR-V with new Earth Dreams powertrain provides fuel economy gain of up to 12%

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The 2015 CR-V features increased EPA fuel economy ratings of 27/34/29 mpg (8.7/6.9/8.1 This gives the connecting rods a more favorable angle during each power stroke, which reduces side loading on the pistons and in turn, improves efficiency. The piston crowns are dished to help maintain stable combustion and to optimize distribution of the stratified fuel charge from the direct injector in each cylinder. A multi-hole injector delivers fuel directly into each cylinder.

2014 255

Obama Administration announces first fuel economy and GHG standards for medium- and heavy-duty vehicles

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US President Barack Obama announced fuel efficiency and greenhouse gas emission standards for medium- and heavy-duty vehicles. For purposes of the new HD National Program, the heavy-duty fleet incorporates all on-road vehicles rated at a gross vehicle weight at or above 8,500 pounds, and the engines that power them, except those covered by the current GHG emissions and Corporate Average Fuel Economy standards for model year 2012-2016 passenger vehicles.

2011 276

Chrysler unveils 2013 Ram with array of new systems focused on fuel economy

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Chrysler unveiled the 2013 Ram pickup, featuring an array of fuel-saving systems including a more fuel efficient and more powerful 3.6-liter V-6 engine; eight-speed automatic transmission; stop-start system; thermal management system; pulse-width modulation to reduce parasitic electrical load; and active aerodynamics, including grille shutters and air suspension. Specific fuel economy figures are note available yet.) Electric power steering.

2012 215

Restyled VW Scirocco makes debut at Geneva; up to 19% better fuel economy

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The restyled Volkswagen Scirocco will debut in Geneva, featuring a new range of engines that offer up to 276 hp yet also promise fuel efficiency improvements of up to 19%. Despite the increase in capacity and power, it is more economical than the unit it replaces. The previous 2.0-liter TSI 210 PS (207 hp) has been replaced with a 220 PS (217 hp) unit that is also 19% more fuel efficient.

2014 179

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

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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. WLTP defines a globally harmonised standard for determining the levels of pollutants and CO 2 emissions, as well as fuel or energy consumption.

2017 150

ACCESS project targeting 30% improvement in fuel economy and SULEV emissions in light-duty gasoline engine; multi-mode SI/HCCI combustion

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Robert Bosch LLC and a consortium including AVL, Emitec, University of Michigan and Stanford University are working on a four-year, $24-million US Department of Energy (DOE)-supported project to achieve up to 30% fuel economy improvement in a gasoline-fueled light-duty vehicle without compromising performance while also meeting SULEV emission standards. The baseline powertrain is a 3.6L, port fuel injected V6 with a 6-speed transmission; the target powertrain is a 2.0L

2011 191

New VW Golf Sportwagen going on sale in 2015 in US with gasoline and diesel powertrains; improved power and fuel economy

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The new SportWagen—a more fuel-efficient replacement for the Jetta Sportwagen—will continue the trend introduced by the seventh-generation Golf: lighter, bigger, roomier, more fuel efficient and more powerful than the outgoing model. Volkswagen estimates highway fuel economy to have improved by as much as 17% compared to the 2.5-liter Jetta SportWagen. Engines Fuel Efficiency

2014 184

EPA annual report on CO2, fuel economy and technology trends finds 2012 heading for all-time best; rapid adoption of new technologies

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Adjusted CO 2 emissions and adjusted fuel economy, MY 1975-2011. The US Environmental Protection Agency (EPA) released its annual report summarizing key trends in carbon dioxide emissions, fuel economy, and CO 2 - and fuel economy-related technology for gasoline- and diesel-fueled personal vehicles sold in the United States, from model years (MY) 1975 through 2012. Changes in light-duty vehicle technology penetration share.

2013 238

EPA trends report sees record levels of average new vehicle fuel economy and CO2 emissions for MY 2012; role of new gasoline vehicle technologies

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Average new vehicle CO 2 emissions rate and fuel economy in the US achieved record levels in MY 2012, and have improved in 7 of the last 8 years, according to the newly released Light-Duty Automotive Technology, Carbon Dioxide Emissions, and Fuel Economy Trends: 1975 - 2013 (the annual “Trends” report) from the US Environmental Protection Agency (EPA). MY 2012 adjusted fuel economy is 23.6

2013 210

Toyota introduces 7th generation Camry for 2012 with improved fuel economy and performance across all models; ~39% jump in EPA city cycle fuel economy for the hybrid

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The 2012 Camry again offers three powertrain choices, all of which have been enhanced for 2012 to provide better fuel economy and more responsive performance: a revised 2.5L, 4-cylinder gasoline engine; an enhanced 3.5-liter V6; and a highly revised version of the Hybrid Synergy Drive powertrain for the Camry Hybrid, including a new 2.5-liter 4-cylinder engine (the new 2AR-FXE, a variant of the Camry 2AR-FE 2.5L). Eco mode maximizes fuel savings across all driving conditions.

2011 179

Fuso develops heavy-duty hybrid truck; 10% increase in fuel economy compared to conventional diesels

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First tests of the “Super Great HEV” have shown about a 10% improvement in fuel economy over conventional diesel-only vehicles. Power to drive the vehicle comes from the vehicle's electric motor, the diesel engine or both. Fuel efficiency and emissions reduction are achieved by using them singly or in combination with each other according to driving conditions.

2011 191

Assessment of US CAFE fuel economy standards finds big savings on fuel and emissions since inception

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The researchers cite that the standards saved $5 trillion in fuel costs and prevented 14 billion metric tons of carbon from being released into the atmosphere, the equivalent of the United States eliminating all emissions from all sectors for nearly three years.

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