Will Fuel Economy Rules Require Future Cars To Use Premium Gas?

Green Car Reports

Carmakers are pursuing continual fuel-economy gains to meet the Corporate Average Fuel Economy (CAFE) standard of 54.5 mpg set for 2025. Their engineers work to squeeze every last bit of efficient from cars and trucks, but so far there's been little consideration of the fuel itself. Some efficiency-focused upgrades to standard gasoline engines. Gasoline Fuel Economy octane

2014 Ram 1500 EcoDiesel Pickup Fuel Economy: 23 MPG Combined

Green Car Reports

How do you make a full-size pickup truck more fuel-efficient? Fitting in a smaller diesel engine seems to be working for Ram. The 2014 Ram 1500 EcoDiesel achieved an EPA fuel-economy rating of 23 mpg combined for rear-wheel drive models. That represents a city rating of 20 mpg MORE: 2014 Pickup Truck Gas Mileage: Ford Vs Chevy Vs Ram, Who''s Best?

Trending Sources

Next-Gen Cylinder Deactivation: V-8s Using Two Cylinders, 20 Percent MPG Boost?

Green Car Reports

Cylinder deactivation has become an important tool for squeezing better fuel economy out of larger-displacement engines. It allows engines to shut off fuel supply to some of their cylinders under light loads, effectively cutting displacement when extra power is not needed. General Motors V8 Fuel Economy Delphi Cylinder Deactivation

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Ford Engine Power, MPG Figures Tested Using Different Fuels

Green Car Reports

Most buyers likely assume that the conditions for rating a new car's fuel economy and engine performance are identical. For at least one carmaker--Ford--and possibly others as well, that turns out not to be the case: Different gasoline formulations are used to test gas mileage than are used for engine. Green E10 EPA Ratings Fuel Economy Gasoline horsepower octaneIt's all about the asterisk, it turns out.

2015 23

2017 Audi A3 replaces 1.8L with Millerized 2.0L TFSI; better fuel economy, power and torque

Green Car Congress

The 2017 Audi A3 Sedan and Cabriolet models in the US are now available with Audi’s more efficient Millerized 2.0-liter TFSI engine ( earlier post ) and seven-speed S tronic dual-clutch transmission. l/100km), compared to an EPA-rated 27 mpg (8.7 Engines Fuel Efficiency

2016 23

2016 Chevy Colorado, GMC Canyon Take Truck Fuel-Efficiency Crown At 25 MPG

Green Car Reports

The 2016 Chevrolet Colorado and GMC Canyon mid-size pickup twins, fitted with the newly-available Duramax four-cylinder diesel engine, are now the most fuel-efficient pickup trucks sold in the U.S. EPA fuel-economy ratings are in, and rear-wheel-drive versions of the General Motors trucks are rated at 25 mpg combined (22 mpg city, 31 mpg highway). Trucks Fuel Economy Duramax

GMC 19

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 Cost of the new engine relative to gasoline baseline.

Demonstration series hydraulic hybrid transit bus yields fuel economy of 6.9 mpg, 110% better than conventional diesel, 30% better than electric hybrids

Green Car Congress

The BUSolutions demonstrator LCO-140H (Low Cost of Ownership–1 st 40-foot Hybrid) series hydraulic hybrid transit bus yields fuel economy of 6.9 With the engine is decoupled from the drive axle, there is no longer a requirement to match engine RPM with vehicle speed.

2012 36

Ford’s math on hybrid fuel economy; standing by the C-MAX EPA ratings, acknowledging large real-world variance

Green Car Congress

Raj Nair outlining factors affecting real-world fuel economy in hybrids. Nair noted that the Consumer Reports testing also found discrepancies in between real-world testing and EPA rating for hybrids from other manufacturers, and singled out a 19 mpg variance on a Prius as one example.

2012 36

2016 Mazda MX-5 Miata fuel economy improves 25% versus outgoing model

Green Car Congress

The 2016 Mazda MX-5 achieves an EPA-estimated 27 mpg city/34 mpg highway/30 mpg combined (8.7/6.9/7.8 l/100 km) when equipped with the standard SKYACTIV-MT six-speed manual transmission and an EPA-estimated 27 mpg city/36 mpg highway/30 mpg combined (8.7/6.5/7.8 At the same time, the 2016 MX-5 has gained Mazda’s torquey SKYACTIV-G 2.0-liter engine.

2015 18

ICCT: incremental technology can cut vehicle CO2 by half and increase fuel economy >60% through 2030 with ~5% increase in price

Green Car Congress

Starting from a baseline 26 mpg (9.04 l/100 km) in 2016, the The ICCT team assessed increased consumer label fuel economy (as opposed to the regulatory test fuel economy) to 35 mpg (6.71 l/100 km) in 2025 and to 42–46 mpg (5.6-5.11 Advanced engines.

2017 20

Small turbo engines get good MPG ratings; real-world use may be a different story

Green Car Reports

Over the past few years, automakers have applied more technology to a wider array of cars in order to boost their efficiency to meet stricter fuel-economy standards. turbocharged mpg Fuel Economy TurbochargingAutomakers may gradually be putting more emphasis on plug-in electric cars and conventional hybrids, but they are far from done with plain old internal combustion.


Smaller car worst for true fuel economy performance

Green Cars News

The idea that downsizing will save you money in fuel costs, has been thrown into doubt as new research reveals that small engines often fail to meet their official MPG figures by the largest margin.

2014 24

FEV analysis of automotive-scale Pinnacle opposed-piston engine finds potential for significant increases in fuel economy

Green Car Congress

An analysis by FEV of a modeled automotive scale version of Pinnacle’s 4-stroke, spark-ignited (SI), opposed-piston, sleeve-valve architecture engine ( earlier post ) concluded that the engine has the potential to deliver significant additional fuel economy benefits of up to 42.6% configuration of the engine. FEV is also supporting Pinnacle on those initial versions of the engine. Fuel economy. To predict fuel economy for the baseline 1.5L

2013 18

Chevrolet to offer small number of 2016 Silverados pickups with e-Assist mild-hybrid technology; 13% better city cycle fuel economy

Green Car Congress

As a result, Chevrolet can deliver a low-volume, affordably priced hybrid pickup that delivers uncompromised capability and up to 13% better fuel economy in city driving. Silverado already leads the full-size truck segment in V8 fuel economy. For customers and small-business owners who use their trucks for more urban driving, the addition of eAssist can further reduce their fuel costs without sacrificing the utility they expect in a full-size truck.

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

2013 26

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). Diesel Fuel Efficiency

2014 12

2017 Audi A4 ultra with Millerized 2.0 TFSI offers 31 mpg combined; highest EPA-estimated fuel economy in competitive segment

Green Car Congress

Audi’s 2017 A4 ultra leverages the Millerized 2.0-liter TFSI engine ( earlier post ) to achieve 27 mpg (8.7 l/100 km) city, 37 mpg (6.35 l/100 km) highway, and 31 mpg (7.58 l/100 km) combined EPA-estimated fuel economy. Engines Fuel Efficiency

ICCT reviews real-world tractor-trailer fuel economy in US, China and Europe

Green Car Congress

The International Council on Clean Transportation (ICCT) has published a new paper reviewing and summarizing data on commercial vehicle sales and real-world fuel consumption for heavy-duty tractor-trailers in the three key markets of the US, China and Europe, which together account for more than 70% of HDV sales worldwide. The review found that in the US, average tractor-trailer fuel consumption rates for the entire fleet are approximately 39 L/100 km (6 mpg). 7 mpg).

2015 16

Renault introducing three Energy engines in the Mégane Collection 2012; fuel economy up to 67 mpg US

Green Car Congress

The Energy dCi 110 diesel offers fuel consumption of 3.5 L/100km, equivalent to 67 mpg US. liters/100 km (67 mpg US) with CO 2 emissions of 90 g/km. The result is enhanced combustion and, consequently, lower fuel consumption and CO 2 emissions. 16V engine.

2012 12

Audi introduces new high-efficiency 2.0L TFSI based on Miller cycle; 190 hp, 47 mpg

Green Car Congress

TFSI gasoline turbocharged direct injection engine for the first time at the Vienna Motor Symposium this week. The engine, which features a new combustion method, will be used for the first time in the next generation of the A4. Stefan Knirsch, Head of Engine Development at Audi.

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2015 Ford F-150 offers highest EPA-estimated fuel economy among full-size gasoline-powered pickups

Green Car Congress

The new 2015 Ford F-150 ( earlier post ) 4x2 with Ford’s 2.7-liter EcoBoost engine has EPA-estimated ratings of 19 mpg city, 26 mpg highway and 22 mpg combined (12.4, l/100 km, respectively)—the highest EPA-estimated fuel economy ratings of any gasoline-powered full-size pickup sold in America. That is 5% to 29% better than current F-150 models, depending on engine and driveline configuration on the combined cycle.

F-150 13

Nissan boosts fuel economy of 2013 Pathfinder SUV by 30%, drops weight by 500 lbs

Green Car Congress

Fuel economy is rated at 26 mpg highway / 20 mpg city and 22 mpg combined for the 2WD model (9.0, l/100 km, respectively) and 25 mpg highway / 19 mpg city and 21 mpg combined for the 4WD model (9.4, 2013 Pathfinder. Click to enlarge.

2012 14

New Volkswagen Polo BlueGT with cylinder deactivation offers gasoline engine fuel economy of up to 52 mpg US

Green Car Congress

The system was realized with the new 1.4-liter gasoline-fueled TSI of the Polo BlueGT. The TSI develops a power output of 103 kW / 138 hp, with a combined fuel consumption of 4.7 l/100 km/h (50 mpg US), equivalent to 108 g/km CO 2. If the Polo BlueGT is ordered with the optional 7-speed dual clutch gearbox (DSG), fuel consumption drops further to 4.5 l/100 km (52 mpg US), equivalent to 105 g/km CO 2. Engines Fuel Efficiency Vehicle Systems

2012 11

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

Green Car Congress

While engine size has been decreasing slightly in recent years, overall engine horsepower has continued to increase, with the notable exception of MY 2009. Nearly all engines now have multiple valves (approximately 85%) and variable valve timing (projected to approach 95% in MY 2011).

2012 17

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

Green Car Congress

EcoTec3 V-8 engine ( earlier post ) equipped with direct injection, cylinder deactivation (AFM) and variable valve timing to achieve EPA estimates of 16 mpg city (14.7 l/100 km) with two-wheel drive or 16/22 mpg (14.7/10.7 2WD Pickup truck fuel economy comparisons.

2016 Honda HR-V Subcompact SUV Rated At 31 MPG Combined

Green Car Reports

We now have EPA fuel-economy for the 2016 Honda HR-V crossover, which is based on the Fit subcompact. With the sole option of a 1.8-liter four-cylinder engine, Honda''s smallest-ever crossover is rated at 31 mpg combined (28 mpg city, 35 mpg highway) when ordered with front-wheel drive and the CVT automatic transmission.

2015 23

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

Green Car Congress

Robert Bosch LLC, AVL Powertrain Engineering and partners including the University of Michigan are working on a four-year, $24-million US Department of Energy (DOE)-supported project— Advanced Combustion Concepts—Enabling Systems and Solutions (ACCESS)—to achieve a 30% fuel economy improvement in a gasoline-fueled light-duty vehicle without compromising performance while also meeting SULEV emission standards. I4 Ecotec engine. Engine configuration.

2013 11

Infiniti Q80 Inspiration concept hybrid delivers 550 hp with 42.8 mpg fuel economy

Green Car Congress

The four-door fastback is powered by a hybrid electric powertrain that is expected to deliver 550 hp (410 kW) with fuel consumption of 5.5 mpg US) and CO 2 emissions of about 129 g/km. Combined engine and motor system torque is 750 N·m (553 lb-ft).

Volkswagen introduces new 1L, 3-cylinder gasoline Golf; 54.7 mpg

Green Car Congress

In Europe, Volkswagen has introduced the new Golf TSI BlueMotion featuring a new 1.0-liter, 3-cylinder with low fuel consumption of 4.3 mpg US) (99 g/km CO 2 )—more efficient than any previous Golf with a gasoline engine. engine) introduced in 1975.

MPG 28

UMTRI: average sales-weighted fuel economy of purchased new vehicles in US dropped 0.2 mpg in May from April

Green Car Congress

The average sales-weighted fuel economy (adjusted EPA window sticker value) of new vehicles purchased in the US dropped 0.2 mpg in May from the level in April to 23.7 mpg US (9.9 mpg US (18%) from the value in October 2007 (the first month of UMTRI monitoring). UMTRI average sales-weighted fuel economy. The sales-weighted CAFE (unadjusted mpg) for May 2012 was 29.1 mpg US (8.1

Optimized direct-injection hydrogen engine estimated to exceed 2016 CAFE fuel economy targets at Tier 2 Bin 2 emission levels

Green Car Congress

The H2-DI engine was estimated to exceed 2016 CAFE targets with engine out Tier 2 Bin 2 (SULEV) emission levels. The team sees further potential for fuel economy improvement with engine downsizing. The engine delivers peak BTE of 45.5% mpg US city, 51.5

2011 12

New 2012 Honda Civic lineup boosts fuel economy in all models; Hybrid and HF offer 40+ mpg

Green Car Congress

The entire redesigned ninth-generation Honda Civic lineup will become more fuel efficient with two models—the all-new 2012 Honda Civic HF and the Civic Hybrid—each delivering fuel economy estimates of more than 40 mpg (5.9 The Civic HF model will be the most fuel-efficient gasoline-only powered Civic in the lineup when it launches this spring. L/100km), an improvement of 4 mpg compared to the current Civic Hybrid.

New Ford Focus with Super Fuel Economy package EPA-certified at 40 mpg highway

Green Car Congress

The new Ford Focus ( earlier post ) with the SFE (Super Fuel Economy) package is EPA-certified at 40 mpg on the highway and 28 mpg city. Focus becomes the fourth vehicle in the Ford Motor Company vehicle lineup with an EPA-certified rating of 40 mpg (on either city or highway cycles) or more. This engine delivers more power than the current 2.0-liter Duratec unit featured in the North American Focus, while contributing to fuel economy gains of more than 10%.

Toyota anticipates 2016 Prius at 52 mpg combined, 56 mpg with Eco grade

Green Car Congress

Toyota anticipates that the 2016 Prius ( earlier post ) will deliver fuel economy ratings of 54 MPG city / 50 MPG highway / 52 MPG combined. The smaller transaxle and power control unit allow for the auxiliary battery to be installed in the engine compartment.

MPG 24

Urban Drive Cycle Testing shows a 26% mpg improvement on Ford Transits with XL Hybrids drive system

Green Car Congress

earlier post ) The fuel economy improvement on the EPA UDDS drive cycle also includes a more than 50% reduction in NO x emissions. The XL3 system reduces fuel use through propulsion assist by the electric motor and recharges the battery through regenerative braking.

MPG 43

Achates Power building 2.7L opposed-piston light-duty engine; exceeding CAFE 2025, Tier 3 targets at lower cost

Green Car Congress

six-piston) light-duty version of its opposed piston engine (OPE) in both diesel- and gasoline-fueled versions. Achates will demonstrate the engine in 2018 in a driveable light-duty truck. That works out to an estimated window-sticker label rating of 28 mpg combined.).

Light 46

NREL study finds 2nd-generation diesel hybrid delivery vans show significant gains in fuel economy over conventional vans

Green Car Congress

Laboratory and in-use fuel economy results Source: NREL. The team also performed dynamometer testing at the Renewable Fuels and Lubricants (ReFUEL) Research Laboratory in Denver. The NREL team evaluated fuel economy during equal 5-month periods from different years.

2012 17

New Porsche 911 Turbo improves fuel economy by 16%

Green Car Congress

The new generation Porsche 911 Turbo and Turbo S, equipped with new advanced engines, PDK transmission, new combined thermal management system for the turbo engine and the transmission, the new Porsche Traction Management (PTM) all-wheel drive system, and other fuel efficiency technologies such as start/stop and active aerodynamics, have reduced NEDC fuel consumption by up to 16% to 9.7 mpg US); these figures apply to both models.

2013 Ford Taurus EPA-certified at 32 mpg highway with new 2.0L EcoBoost engine

Green Car Congress

The EPA has certified the 2013 Ford Taurus with the new 2.0-liter EcoBoost four-cylinder engine at 32 mpg (7.35 The 2.0-liter EcoBoost helps Taurus deliver a 26 mpg (9.05 All three engine options for the 2013 model have now been certified at 25 mpg (9.41 Each Taurus powertrain features additional technologies to help conserve fuel, such as: Low-tension front-end accessory drive belt. Aggressive deceleration fuel shutoff.

2012 26