Emissions, Exhaust and Gasoline

New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

Green Car Congress

MAY 13, 2022

In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). —Emissions Analytics. Quoting such ratios, however, needs careful interpretation.

Exhaust

Exhaust Emissions Pollution Legal

Study finds engines emit exhaust nanoparticles even when not fueled during engine braking

Green Car Congress

JANUARY 19, 2014

Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.

Exhaust

Exhaust Engine Fuel Greece

WHO IARC classifies diesel exhaust as carcinogenic to humans (Group 1)

Green Car Congress

JUNE 13, 2012

After a week-long meeting of an expert working group, the International Agency for Research on Cancer (IARC), which is part of the World Health Organization (WHO), classified diesel engine exhaust (DEE) as carcinogenic to humans (Group 1), based on sufficient evidence that exposure is associated with an increased risk for lung cancer.

Exhaust

Exhaust Diesel Standards Emissions

Mercedes-AMG entry-level SL 43 features electric exhaust gas turbocharger from Formula 1 for the first time in production vehicle

Green Car Congress

APRIL 7, 2022

The SL 43 features an M139 in-line two-liter, four-cylinder gasoline engine with an electric exhaust gas turbocharger—used for the first time in a production vehicle. The electric exhaust gas turbocharger is a fascinating example of the extensive transfer between Formula 1 technology and the development of production vehicles.

Exhaust

Exhaust Gas-Electric Mercedes Gas

UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

Green Car Congress

JUNE 8, 2023

In a recent open-access paper published in ACS’ Environmental Science & Technology , researchers from the University of York report that alcohols in windshield washer fluid account for a larger fraction of real-world vehicle emissions than previous estimates have suggested. Cliff et al. —Cliff et al.

Emissions

Emissions Exhaust Cars Ozone

SwRI D-EGR gasoline demo vehicle delivers diesel efficiency at lower cost; potential for LEV III/Tier 3 emissions

Green Car Congress

APRIL 9, 2014

Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-Exhaust Gas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit. liter gasoline direct injection engine. Terry Alger, assistant director in SwRI’s Engine, Emissions and Vehicle Research Division.

Gasoline

Gasoline Emissions Diesel Exhaust

New Delphi Technologies 500+ bar GDi system cuts gasoline particulate emissions by up to 50%, reduces fuel consumption

Green Car Congress

MAY 16, 2019

In a paper presented at the 2019 Vienna Motor Symposium this week, Delphi Technologies will unveil a new 500+ bar GDi system that can reduce particulate emissions by up to 50% compared to state-of-the-art 350 bar system without expensive engine design modifications. —Walter Piock, chief engineer, Gasoline Systems, Delphi Technologies.

Emissions

Emissions Gasoline Fuel Exhaust

Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

Green Car Congress

FEBRUARY 22, 2018

The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF). Their study is publishedin the ACS journal Environmental Science & Technology. Yang et al.

Gasoline

Gasoline Emissions Engine Fuel Economy

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

Green Car Congress

JUNE 23, 2014

Cost of the new engine relative to gasoline baseline. So far, Ruth noted, the new engine has achieved target engine-out emissions (EOE), performance and fuel economy; aftertreatment catalyst performance has met or exceeded the targeted conversion rates, enabling an increased allowance on engine out HC. Earlier post.). Source: Cummins.

Fuel Economy

Fuel Economy Economy Gasoline Downsizing

IAV develops new close-coupled diesel exhaust gas aftertreatment system for improved emissions reduction

Green Car Congress

MAY 8, 2017

IAV has developed a particularly closed-coupled diesel exhaust gas aftertreatment (EAT) system. A key contribution to this performance must come from the exhaust gas aftertreatment system—across the entire speed and load range. This way, exhaust gas flows through DOC and SCRF before it enters the turbine. Click to enlarge.

Exhaust

Exhaust Diesel Gas Emissions

UC Riverside team wins EPA design contest with lawnmower exhaust aftertreatment device

Green Car Congress

JULY 8, 2014

A team of University of California, Riverside Bourns College of Engineering students have won an EPA student design contest for developing an exhaust aftertreatment device that cuts CO, NO x and PM emissions from lawnmowers. An improved version of the device eliminated 93% of particulate matter emissions.

Exhaust

Exhaust EPA Design Pollution

UC Riverside study finds emissions benefits for E15 blend in California

Green Car Congress

JUNE 12, 2023

A study by a team from UC Riverside has assessed the potential of increasing ethanol content in California reformulated gasoline (CaRFG) by investigating the exhaust emissions from a fleet of 20 Tier 3 light-duty vehicles. Acetaldehyde and ethanol emissions responded strongly with ethanol across the fleet of 20 vehicles.

California

California Emissions Montana Gasoline

Promising Delphi 1st-gen Gasoline Direct Injection Compression Ignition engine meeting ultra fuel efficient program targets

Green Car Congress

APRIL 17, 2014

GDCI engine was significantly better than advanced production spark injection gasoline engines, and comparable to very efficient hybrid vehicle engines at their best efficiency conditions (214 g/kWh). They found that at all loads, GDCI was remarkably clean, with the potential for no aftertreatment for NO x and particulate emissions.

Gasoline

Gasoline Engine Fuel Wisconsin

Opel presents new midsize gasoline engine at Aachen Colloquium; fuel consumption down 13%, torque and power up 33%

Green Car Congress

OCTOBER 16, 2012

Opel revealed more details about its new mid-size gasoline engine family at the Aachen Colloquium in Germany. CO 2 emissions and fuel consumption have been cut by 13% compared to the predecessor engine, while peak torque and peak power have been increased by up to 33%. Earlier post.) The all-new 1.6-liter,

Gasoline

Gasoline Engine Fuel Power

ExxonMobil, Corning and Toyota develop onboard membrane system to separate gasoline into octane fractions to optimize engine efficiency and performance

Green Car Congress

APRIL 10, 2014

ExxonMobil, Corning and Toyota have collaborated to develop an Onboard Separation System (OBS) to optimize gasoline engine efficiency and performance. The novel polymer-ceramic composite monolith membrane has been demonstrated to be stable to E10 gasoline, and typically provides 20% yield of ?100 —Partridge et al. The OBS system.

Gasoline

Gasoline Engine Toyota Fuel Economy

DOE awards $17M to FY 2014 SBIR Phase II projects; includes Si/graphene anodes, motor windings, exhaust treatments

Green Car Congress

MARCH 31, 2014

Hybrid Electric Turbocharger for Exhaust Energy Recovery and Transient Lag Reduction. NO x Sensor for Diesel Engine Emissions Systems. Additionally, NexTech has demonstrated the ability to tune their sensor technology to also detect and report on ammonia (NH 3 ) emissions. A Novel Exhaust after Treatment Catalyst.

Exhaust

Exhaust Wind 2014 Motoring

New VW Golf now available to order with natural gas drive

Green Car Congress

OCTOBER 22, 2020

The engine of the quasi-monovalent drive system is powered primarily with CNG (Compressed Natural Gas), but can also run on gasoline. The Golf TGI is also equipped with a gasoline tank with a useful capacity of 9 liters (2.4 kg of natural gas per 100 kilometers in combination with CO 2 emissions of 117–111 g/km. The new 1.5L

Gas

Gas Available Gasoline-Electric Gas-Electric

New Pierburg air blower with speed-controlled motor for reduction of gasoline engine emissions

Green Car Congress

MARCH 13, 2018

Secondary air systems are used to reduce gasoline engine emissions by accelerating catalytic converter heat-up. The latter allows secondary air injection across a much wider engine map range and hence, at any given point in time, the precise air mass required for accelerating converter heat-up is injected into the exhaust system.

Gasoline

Gasoline Emissions Engine Motoring

Bath University and SAIC Motor team up to investigate gasoline particulate filter performance

Green Car Congress

NOVEMBER 19, 2018

The University of Bath and SAIC Motor UK Technical Centre are collaborating on a project to identify the most efficient conditions for the optimum performance of gasoline particulate filters (GPFs), to help minimize vehicle impact on the environment.

Universal

Universal Gasoline Motoring Motors

Delphi advancing Gasoline Direct-Injection Compression-Ignition engine concept; new two-stage supercharger/turbocharger boost system

Green Car Congress

APRIL 12, 2013

At SAE World Congress next week in Detroit, Delphi Automotive will present two technical papers describing its ongoing progress with the Gasoline Direct-Injection Compression-Ignition (GDCI) engine concept. To avoid efficiency-compromising CO emissions, combustion must occur in the region 0 Source: Sellnau et al. Source: Sellnau et al.

Gasoline

Gasoline Engine Concept Fuel Economy

Eni and FCA develop A20: 15% methanol, 5% ethanol high-octane gasoline blend

Green Car Congress

APRIL 24, 2019

Within the scope of an agreement signed in November 2017 ( earlier post ), Eni and FCA have developed “A20”, a new fuel with a low level of emissions due to its 15% methanol and 5% bio-ethanol alcohol content. An initial test run of five Fiat 500s from the Eni Enjoy fleet in Milan ended successfully a few weeks ago.

Gasoline

Gasoline 2001 Italy Alternative Fuels

Ford researchers report detailed study of the effect of different ethanol blend levels on emissions from FFVs

Green Car Congress

DECEMBER 23, 2013

FTP cycle-weighted tailpipe emissions of N 2 O, NO x , and the sum of NMOG and NO x. The minimum in NO x and NMOG emissions for midlevel ethanol blends points to future opportunities for emission reductions from FFVs. Credit: ACS, Hubbard et al. Click to enlarge. E40); and the new range for high-level ethanol blends (E55, E80).

Emissions

Emissions Ford Exhaust Fuel

ICCT study compares leading global driving cycles and provides usable conversion factors for CO2 emissions

Green Car Congress

DECEMBER 8, 2014

The result is a set of usable conversion factors for distance-based CO 2 emissions among the different driving cycles. For the study, the ICCT team simulated CO 2 and efficiency results over the test cycles for a variety of vehicle and technology packages using a vehicle emission model developed by Ricardo Engineering. Source: ICCT.

Conversion

Conversion Emissions CO2 Global

Swiss team finds particle emissions from aircraft turbine engines at ground-idle induce oxidative stress in bronchial cells

Green Car Congress

MAY 17, 2019

In a study on the effect of exhaust particles from aircraft turbine engines on human lung cells, Swiss researchers have found that cells reacted most strongly to particles emitted during ground idling. The study also showed that the cytotoxic effect is only to some extent comparable to that of particles from gasoline and diesel engines.

Engine

Engine Emissions Switzerland Gasoline

ORNL team achieves diesel-like efficiency with SI engine

Green Car Congress

APRIL 9, 2021

The ORNL team conducted engine experiments with both 91 RON E10 gasoline and liquified petroleum gas (LPG). 1) with cooled exhaust gas recirculation (EGR) and high compression ratio (13.3:1 1 for LPG only) improved engine efficiency by up to 30% compared with a production turbocharged gasoline direct injection spark ignition engine.

Diesel

Diesel Engine Gasoline Fuel

The importance of considering non-exhaust traffic emissions; the role of EVs

Green Car Congress

MAY 2, 2016

Regulatory regimes seeking to reduce emissions from transport have largely focused on tailpipe emissions—i.e., the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. Non-exhaust PM factors include tire wear, brake wear, road surface wear and resuspension of road dust. earlier post ). Background.

Exhaust

Exhaust Emissions Belgium Gasoline-Electric

VW’s 1.0 TSI in the new up! GTI wins International Engine of the Year 2018 award in its category; Euro 6d-TEMP

Green Car Congress

JUNE 6, 2018

The 85 kW / 115 PS gasoline-fired engine is the first of its kind to be combined with a four-way catalytic converter and installed in the up! It also comes with a gasoline particulate filter. With a pressure of 350 bar (high for a gasoline engine), the fuel mixture is injected directly into the combustion chambers.

2018

2018 Engine International Exhaust

Audi introduces new CNG A3 Sportback

Green Car Congress

SEPTEMBER 16, 2020

Operation with natural gas or biomethane makes the compact model economical and more climate-friendly with low emissions. Its turbocharger with variable turbine geometry makes optimal use of the exhaust gas energy for early and harmonious torque development. Lower costs, lower emissions. The A3 Sportback 30 g-tron 1.5

Audi

Audi Gas Gas-Electric Gasoline-Electric

Study finds modern diesel cars emit fewer carbonaceous particulates than gasoline cars

Green Car Congress

JULY 14, 2017

A new study by an international team led by researchers from the Paul Scherrer Institute (PSI) in Switzerland has found that modern diesel passenger cars equipped with diesel particulate filters (DPFs) emit fewer carbonaceous particulates than gasoline-powered vehicles. a) Aerosol emission factors (g kg −1 fuel) measured in the study.

Gasoline

Gasoline Diesel Cars Emissions

Birmingham study finds butanol-gasoline blend reduces GDI engine-out carbonaceous emissions; similar NOx

Green Car Congress

SEPTEMBER 3, 2017

A team at the University of Birmingham reports that a blend of 33% v/v of butanol in EN228 commercial gasoline containing 5% of ethanol (B33) reduces GDI (gasoline direct injection) engine-out carbonaceous emissions, while maintaining similar levels of NO x emissions when compared to standard gasoline combustion at low and medium engine loads.

Gasoline

Gasoline Emissions Engine B0

Study finds particulates from auxiliary vehicle heaters can be up to 1000 times higher than from idling gasoline engines

Green Car Congress

SEPTEMBER 13, 2021

Researchers from Tampere University and the University of Eastern Finland have found that the particulate emissions of auxiliary heaters can be up to a thousand times higher than the particulate emissions of idling gasoline vehicles. Their open-access study is published in the journal Atmosphere.

Gasoline

Gasoline Engine Finland Exhaust

Honda progressing with high-efficiency low-emission Homogeneous Lean Charge Spark Ignition (HLSI) combustion work

Green Car Congress

APRIL 28, 2014

Honda is developing a Homogeneous Lean Charge Spark Ignition (HLSI) combustion engine as one of the key elements in its technology roadmap for a higher thermal efficiency gasoline engine. A great deal of research has been conducted on lean burn as an effective means of increasing the efficiency of gasoline engines. Click to enlarge.

Honda

Honda Emissions Charging Engine

A closer look at the basics of Volkswagen Group’s important new 2.0L diesel MDB engine

Green Car Congress

MARCH 22, 2014

liter diesel, prominently showing the closely attached exhaust aftertreatment system. Volkswagen also has a modular gasoline engine toolkit, the MOB (Modularen Ottomotor Baukasten), which includes the new EA211 series. The cylinder head intake and exhaust valves are arranged one behind the other. The EA288 2.0-liter

Diesel

Diesel Engine Exhaust Water

Study finds automobile tires are a potential source of carcinogenic dibenzopyrenes to the environment

Green Car Congress

MARCH 10, 2012

It has been estimated that the replacement of HA-oils will reduce the PAH emission originating from tire-tread-wear by 98%. Data available of dibenzopyrenes in other urban emission sources are diesel and gasoline particulate emissions. Non-exhaust traffic sources of particles. Using emission-factor models, 50?85%

Environment

Environment Automobile Exhaust Oil

Ricardo study finds electric and hybrid cars have a higher carbon footprint during production than conventional vehicles, but still offer a lower footprint over the full life cycle

Green Car Congress

JUNE 8, 2011

The report, being released as part of the LowCVP Annual Conference 2011 on 9 June, highlights the increasing importance of accounting for whole life carbon emissions to compare the greenhouse gas emissions of low carbon vehicles. Vehicle Whole Life Carbon Emissions Analysis. emissions in. Standard gasoline vehicle.

Carbon

Carbon Hybrid Production Gasoline-Electric

Study finds total PM10 emissions from EVs equal to those of modern ICEVs; role of weight and non-exhaust PM

Green Car Congress

APRIL 18, 2016

A new study by a team from the University of Edinburgh and independent engineering company INNAS BV has found that, when factoring in the additional weight and non-exhaust PM factors, total PM 10 emissions from electric vehicles (EVs) are equal to those of modern internal combustion engine vehicles (ICEVs). Click to enlarge.

Exhaust

Exhaust Emissions Gasoline-Electric 2016

BMW fitting all gasoline and PHEV models in Germany with particulate filters for Euro 6d-TEMP compliance

Green Car Congress

JUNE 4, 2018

As of July 2018, all BMW gasoline and plug-in hybrid models available in Germany will be fitted as standard with a gasoline particulate filter (GPF) and thus will comply with the exhaust standard Euro 6d-TEMP. The “road emissions value”, including a measuring tolerance, must not exceed 2.1

Gasoline

Gasoline Germany BMW Exhaust

Corning hits 1-million-unit milestone with gasoline particulate filter production

Green Car Congress

JUNE 26, 2018

Corning Incorporated’s Environmental Technologies business reached a significant production milestone at its Kaiserslautern, Germany manufacturing facility with the production of its 1 millionth Corning DuraTrap GC gasoline particulate filter (GPF) for automotive emissions control.

Gasoline

Gasoline Production China Exhaust

Hyundai Motor Group unveils CVVD engine technology; +4% performance, +5% fuel economy, -12% emissions

Green Car Congress

JULY 3, 2019

CVVD optimizes both engine performance and fuel efficiency while reducing emissions. The technology cuts emissions by 12%. T-GDi Engine, a four-cylinder gasoline turbo unit with 180 horsepower and 27.0 Unveiled alongside the new CVVD technology was the new Smartstream G1.6 kgm (265 N·m) of torque.

Fuel Economy

Fuel Economy Hyundai Engine Emissions

ORNL team finds catalytic EGR reforming can decrease fuel consumption 8% in gasoline engine

Green Car Congress

MARCH 5, 2018

Under this same operating condition with stoichiometric engine exhaust (and no reforming), they could only sustain stable combustion with EGR under 25%. We’ve created a systematic approach that addresses that issue and can be used with conventional fuels and conventional emissions controls. —Jim Szybist, ORNL. Earlier post.]

Engine

Engine Gasoline Fuel Exhaust

Swiss team concludes that particulate filters should be mandatory for GDI engines

Green Car Congress

MAY 24, 2017

Based on a three-year study of toxic and environmentally relevant pollutants from gasoline direct injection (GDI) engines, Swiss researchers have concluded that some GDI engines emit just as many soot particles as unfiltered diesel cars did in the past. Further, the GDI particles carry numerous carcinogenic substances. Click to enlarge.

Engine

Engine Exhaust Gasoline Diesel

Study finds ethanol blending appears to reduce significantly genotoxic emissions from gasoline direct injection vehicles

Green Car Congress

OCTOBER 24, 2016

A research team from Empa (Swiss Federal Laboratories for Materials Science and Technology) and the University of Applied Sciences Bern, Laboratory for Exhaust Emission Control, reports that ethanol blending appeared to reduce genotoxic emissions from a flex-fuel Euro-5 gasoline direct injection (GDI) vehicle (a Volvo V60 with a 1.6

Gasoline

Gasoline Emissions Exhaust Vehicles

Volkswagen Millerized 1.5 TSI ACT BlueMotion gasoline engine offers diesel-like fuel economy; derivatives may be applied in hybrid systems

Green Car Congress

MARCH 19, 2018

Volkswagen has developed and deployed a gasoline engine that offers diesel-like fuel economy but is significantly cheaper to buy. This enables further reduced fuel consumption and emission levels plus powerful torque even at low engine speeds. Compared with other gasoline engines, the intake valves of the 1.5

Fuel Economy

Fuel Economy Gasoline Engine Economy

Volkswagen adds third tank to Polo and Golf natural gas models; new TGI engine for Golf

Green Car Congress

FEBRUARY 1, 2019

As a back-up, both models come with a gasoline tank – albeit a much smaller version. kg natural gas over 100 kilometers, and CO 2 emissions of just 98–95 g/km. 1, to increase efficiency and decrease CO 2 emissions. Driving in CNG mode produces around 25% fewer CO 2 emissions than with gasoline. On the Polo with 1.0

Gas

Gas Engine Gasoline Exhaust

New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

Study finds engines emit exhaust nanoparticles even when not fueled during engine braking

WHO IARC classifies diesel exhaust as carcinogenic to humans (Group 1)

Mercedes-AMG entry-level SL 43 features electric exhaust gas turbocharger from Formula 1 for the first time in production vehicle

UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

SwRI D-EGR gasoline demo vehicle delivers diesel efficiency at lower cost; potential for LEV III/Tier 3 emissions

New Delphi Technologies 500+ bar GDi system cuts gasoline particulate emissions by up to 50%, reduces fuel consumption

Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

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

IAV develops new close-coupled diesel exhaust gas aftertreatment system for improved emissions reduction

UC Riverside team wins EPA design contest with lawnmower exhaust aftertreatment device

UC Riverside study finds emissions benefits for E15 blend in California

Promising Delphi 1st-gen Gasoline Direct Injection Compression Ignition engine meeting ultra fuel efficient program targets

Opel presents new midsize gasoline engine at Aachen Colloquium; fuel consumption down 13%, torque and power up 33%

ExxonMobil, Corning and Toyota develop onboard membrane system to separate gasoline into octane fractions to optimize engine efficiency and performance

DOE awards $17M to FY 2014 SBIR Phase II projects; includes Si/graphene anodes, motor windings, exhaust treatments

New VW Golf now available to order with natural gas drive

New Pierburg air blower with speed-controlled motor for reduction of gasoline engine emissions

Bath University and SAIC Motor team up to investigate gasoline particulate filter performance

Delphi advancing Gasoline Direct-Injection Compression-Ignition engine concept; new two-stage supercharger/turbocharger boost system

Eni and FCA develop A20: 15% methanol, 5% ethanol high-octane gasoline blend

Ford researchers report detailed study of the effect of different ethanol blend levels on emissions from FFVs

ICCT study compares leading global driving cycles and provides usable conversion factors for CO2 emissions

Swiss team finds particle emissions from aircraft turbine engines at ground-idle induce oxidative stress in bronchial cells

ORNL team achieves diesel-like efficiency with SI engine

The importance of considering non-exhaust traffic emissions; the role of EVs

VW’s 1.0 TSI in the new up! GTI wins International Engine of the Year 2018 award in its category; Euro 6d-TEMP

Audi introduces new CNG A3 Sportback

Study finds modern diesel cars emit fewer carbonaceous particulates than gasoline cars

Birmingham study finds butanol-gasoline blend reduces GDI engine-out carbonaceous emissions; similar NOx

Study finds particulates from auxiliary vehicle heaters can be up to 1000 times higher than from idling gasoline engines

Honda progressing with high-efficiency low-emission Homogeneous Lean Charge Spark Ignition (HLSI) combustion work

A closer look at the basics of Volkswagen Group’s important new 2.0L diesel MDB engine

Study finds automobile tires are a potential source of carcinogenic dibenzopyrenes to the environment

Ricardo study finds electric and hybrid cars have a higher carbon footprint during production than conventional vehicles, but still offer a lower footprint over the full life cycle

Study finds total PM10 emissions from EVs equal to those of modern ICEVs; role of weight and non-exhaust PM

BMW fitting all gasoline and PHEV models in Germany with particulate filters for Euro 6d-TEMP compliance

Corning hits 1-million-unit milestone with gasoline particulate filter production

Hyundai Motor Group unveils CVVD engine technology; +4% performance, +5% fuel economy, -12% emissions

ORNL team finds catalytic EGR reforming can decrease fuel consumption 8% in gasoline engine

Swiss team concludes that particulate filters should be mandatory for GDI engines

Study finds ethanol blending appears to reduce significantly genotoxic emissions from gasoline direct injection vehicles

Volkswagen Millerized 1.5 TSI ACT BlueMotion gasoline engine offers diesel-like fuel economy; derivatives may be applied in hybrid systems

Volkswagen adds third tank to Polo and Golf natural gas models; new TGI engine for Golf

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