BMW defends diesel while pushing electrification

BMW has established solid electrification credentials. With BMW i, the BMW Group was the first German manufacturer to make a clear commitment to electromobility, notes BMW AG Management Board Chairman Harald Krüger. In 2017, the BMW Group expects sales of its electrified vehicles to exceed 100,000 for the first time... Read more →


German auto manufacturers will optimize the emissions systems in 5.3 million currently approved Euro 5 and 6 diesels in the country, according to the outcome of the “National Diesel Forum” held in Berlin today between the automotive industry and the German Federal and state governments. The aim is a 30%... Read more →


Continental reports successful testing of diesel blends with 15% OME synthetic fuel

Continental has successfully conducted tests on the synthetic diesel fuel oxymethylene ether (OME) in test vehicles, including its Super Clean Electrified Diesel vehicle presented this year. Overall, the Continental tests confirmed that diesel fuel containing 15% OME blend for current diesel engines is a technically safe and viable possibility for... Read more →


Continental Motors Group is expanding its family of diesel aero engines with the CD-265 and CDR-285 engines. The CD-265 is intended for fixed-winged applications while the CDR-285 is designed for rotary wing applications. As the other members of the CD-200 family, the CD-265 and CDR-285 are horizontally-opposed (boxer), four-cylinder, direct-injection,... Read more →


FCA receives EPA, California ARB approval for production and sale of MY 2017 3.0L diesels

FCA US has received a certificate of conformity from the Environmental Protection Agency (EPA) and a conditional executive order from the California Air Resources Board (ARB), permitting the production and sale of FCA US 2017 model-year light-duty Ram 1500 and Jeep Grand Cherokee vehicles equipped with 3.0-liter diesel engines. The... Read more →


California ARB approves $200M VW zero-emission vehicle investment in California; first phase of $800M investment

The California Air Resources Board (CARB) today approved the first of four plans by VW to invest $800 million over 10 years in zero-emission vehicle (ZEV) infrastructure, public outreach, and access to these ultra-clean vehicles for residents of disadvantaged communities. (Earlier post.) The investment is part of a multi-pronged settlement... Read more →


BMW adamantly denies reports about diesel emission systems collusion and manipulation

On Sunday, the BMW Group issued a strong rejection of German media reports charging that the company had colluded with Volkswagen, Audi, Porsche and Daimler on the design and pricing of diesel exhaust systems and that its diesel emission systems did not function properly. On Friday, manager magazine reported that... Read more →


California to receive additional $153M in final settlement with Volkswagen

The California Air Resources Board (CARB) filed a consent decree for its final settlement with the Volkswagen Group of America (VW). The company will be required to pay an additional $153.8 million to California over the company’s use of illegal defeat devices in 2009-2016, 2.0 and 3.0 liter diesel passenger... Read more →


Mercedes-Benz has unveiled its new pickup truck—the first from a premium manufacturer—the X-Class. There are three design and equipment variants to choose from as well as four- or six-cylinder engines, rear-wheel drive and engageable or permanent all-wheel drive, a six-speed manual transmission and a seven-speed automatic transmission. The market launch... Read more →


Daimler launches diesel plan; expands recall to >3M units, accelerating next-gen diesel launch

The Daimler Board of Management has approved a comprehensive plan for diesel engines consisting of a substantial expansion of the current service action for vehicles in customers’ hands as well as a rapid market launch of the completely new OM 654 diesel engine family (earlier post). Since March, Mercedes-Benz has... Read more →


Volvo Trucks North America’s new VNL series delivers up to 7.5% improved fuel efficiency when spec’d with Volvo’s available D13 Turbo Compound engine (D13TC). (Earlier post.) Designed for customers with long-haul, steady-speed operations, the 13-liter Volvo D13TC utilizes turbo compounding technology that recovers energy typically wasted through the exhaust, converting... Read more →


In a study published in the ACS journal Energy & Fuels, a team from the University of Vermont reports that particulate matter from the combustion of biodiesel blends may be 50–80% less toxic per unit PM mass emitted than PM from petroleum diesel, depending on feedstock. There is growing consensus... Read more →


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. The open-access study is published in the journal Scientific Reports. Carbonaceous PM... Read more →


The International Council on Clean Transportation (ICCT), one of the organizations at the root of uncovering the Volkswagen diesel emission scandal (earlier post), has published a new analysis of developments and trends in advanced diesel engine technology. The ICCT team—John German and Aaron Isenstadt—concluded that diesels have and will retain... Read more →


US charges Audi manager with conspiracy to cheat US emissions tests; sacrificing NOx control for a sound system

The US has charged a former Audi manager via criminal complaint for his role in a conspiracy to defraud US regulators and customers by implementing defeat device software in thousands of Audi diesel vehicles to cheat US emissions tests. Giovanni Pamio, 60, an Italian citizen, is charged with conspiracy to... Read more →


ICCT analysis finds 2025 European automotive CO2 standards can be met even if diesel share drops to 15%

Diesel has played a major role in the European Union’s efforts to reduce CO2 emissions from the automotive fleet; the market share of fuel-efficient new diesel cars in the European Union has remained above 50% since 2010. However, in the wake of emission control scandals, increasing concern over NOx-baed air-quality... Read more →


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

Class-action law firm Hagens Berman Sobol Shapiro has filed a new class-action lawsuit against Fiat Chrysler (FCA) and Cummins charging that the automaker knowingly sold more than 135,000 RAM 2500 and 3500 trucks over the past four model years equipped with a Cummins diesel engine with a defect in the... Read more →


European countries struggle to meet emission limits due to emissions from agriculture and transport

Eleven EU Member States breached air pollution ceilings in 2015 mostly due to high emissions from agricultural and transport sources, according to new data and a briefing released by the European Environment Agency (EEA). The briefing includes information on countries’ 2015 emissions and national ceilings for different pollutants. Member States... Read more →


Based on its analysis of government responses to the Volkswagen diesel scandal as well as to the ongoing publication of research highlighting the adverse effects of NOx and particulate matter on public health, Lux Research has concluded that the question is when—not if—a diesel ban will happen. Lux Research compiled... Read more →


International Truck has started customer shipments of its first International LT Series and International RH Series vehicles with the company’s 12.4-liter engine. The company’s internal testing shows these products are delivering up to nine percent in fuel economy improvement over the comparable models built only a year ago. Driven by... Read more →


London launches $111M program to upgrade around 5000 older buses to Euro VI emissions standard

The Mayor of London, Sadiq Khan, launched a £86.1-million (US$111 million) program to retrofit around 5,000 older buses with a new exhaust system that will upgrade the vehicles to Euro VI emissions standards. By September 2020 the entire bus fleet will be at least Euro VI standard, with the emissions... Read more →


A study led by researchers at Tampere University of Technology in Finland found that the use of neat Neste MY Renewable Diesel in working machines—a Wille 355B compact utility machine and Wille 855C multi-purpose wheel-loader—efficiently reduces particulate matter emissions compared to EN590 diesel with 7% biodiesel. With renewable diesel, both... Read more →


Researchers from the universities of Kaiserslautern, Bochum, and Rostock have developed a method for producing a petroleum diesel-like fuel from conventional biodiesel (rapeseed oil methyl ester, RME). Catalyzed by a Pd/Ru system, RME undergoes isomerizing metathesis in a stream of ethylene gas, leading to a defined olefin, monoester, and diester... Read more →


2018 Ford F-150 gains new efficient V6s, 10-speed, diesel

The 2018 Ford F-150 introduces an even smaller, more efficient 3.3-liter V6 that adds dual port and direct-injection technology to deliver more power and torque than the previous 3.5-liter V6, plus improved projected EPA-estimated gas mileage. Aiding in light-weighting, the standard 3.3-liter V6 in the 2018 F-150 is projected to... Read more →


ARB study compares in-use NOx emissions from diesel, hydraulic hybrid diesel and LNG refuse trucks

A team from the California Air Resources Board (ARB), in partnership with the City of Sacramento, has characterized the in-use emissions from model year (MY) 2010 or newer diesel, liquefied natural gas (LNG) and hydraulic hybrid diesel engines during real-world refuse truck operation. A paper on their study is published... Read more →


US new light-duty diesel sales dropped slightly in 2016 to 280,000 units from 300,000 in 2015

The US added more than 280,000 new diesel passenger vehicles across the country in 2016, with Texas, California and Florida having the highest numbers of diesel vehicles, according to a Diesel Technology Forum analysis of the latest Vehicles in Operation (VIO) data compiled by IHS Automotive (December 2016). The number... Read more →


Audi’s new 3.0L diesel; ready for 48V mild hybrid system

Audi engineers have intensively further developed the new 3.0 TDI diesel engine for the European market. In the new Audi A5 and Q5 models, the V6 diesel outputs 210 kW (286 hp) as well as 620 N·m (457lb-ft) of torque (this engine version is not yet for sale. Since it... Read more →


Audi’s mild-hybrid systems: 12V for 4-cylinders, 48V for 6- and 8-cylinders

Audi will begin introducing new mild-hybrid drive vehicles (MHEVs) this year. The next generation of luxury sedans, the Audi A8, will have 48V MHEV systems regardless of engine type. Audi offers the MHEV drives in two variants. For the four-cylinder engines they are based on the familiar 12-volt electrical system.... Read more →


Study finds air quality models significantly underestimate traffic as source of NOx in Europe

Traffic contributes more to NOx emissions in Europe than previously thought, according to a new study by a team at the University of Innsbruck. Using urban eddy covariance measurements, the researchers found that traffic-related NOx emissions in current operational air quality models can be significantly underestimated by up to a... Read more →


Cummins announces compatibility with select 100% paraffinic diesel fuels for B4.5, B6.7, L9 engines

Cummins Inc. announced that the B4.5, B6.7 and L9 engine platforms are compatible with 100% renewable diesel fuels meeting the EN 15940 specification (paraffinic diesel fuel from synthesis or hydrotreatment). Both On-Highway and Off-Highway versions of the B6.7 and L9 platforms and all vintages are approved to use paraffinic diesel... Read more →


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

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 NOxin raw engine-out emissions, while retaining the fuel economy and CO2 benefits of diesel engine technology. The cost effectiveness of this approach is further... Read more →


Study finds POMDME-diesel blends cut soot up to 34% with no NOx increase

A study by a team from the Swiss Federal Institute of Technology Aerothermochemistry and Combustion Systems Laboratory and the University of Kaiserslautern (Germany) has found that blends comprising poly (oxymethylene) dimethyl ethers (POMDME) and diesel show a significant reduction in soot emissions of up to to 34% with no significant... Read more →


Loughborough team develops novel system to enhance SCR operation to reduce NOx further

Researchers at Loughborough University in the UK have developed a novel system that enhances SCR operation to further reduce NOx emissions and improve diesel engine efficiency. The Ammonia Creation and Conversion Technology (ACCT) created by academics from the University’s School of Mechanical, Electrical and Manufacturing Engineering effectively increases the capacity... Read more →


International team uncovers mechanisms of VW, Fiat software defeat device code

An international team of researchers has uncovered the mechanisms of two families of software defeat devices for diesel engines: one used by the Volkswagen Group to pass emissions tests in the US and Europe, and a second found in Fiat Chrysler Automobiles. To carry out the analysis, the team developed... Read more →


US sues Fiat Chrysler over diesel emissions

The Environmental and Natural Resources Division of the US Department of Justice (DOJ-ENRD) has filed a lawsuit against Fiat Chrysler for using software defeat devices in nearly 104,000 Ram 1500 and Jeep Grand Cherokee vehicles (Model Years 2014-2016) with 3.0-liter diesel engines. The US Environmental Protection Agency (EPA) had issued... Read more →


Researchers show mechanism by which diesel exhaust particles trigger respiratory “flare-ups”

Researchers at Imperial College London, working with colleagues from King’s College London and University of British Columbia, have demonstrated a mechanism by which diesel exhaust particles directly affect the lungs to initiate symptoms such as a tightening of the airways and cough. These triggered respiratory reflexes can potentially worsen underlying... Read more →


European Commission opens infringement procedure against Italy over insufficient action on Fiat Chrysler emission control strategies

The European Commission has launched an infringement procedure against Italy for failure to fulfil its obligations under EU vehicle type-approval legislation with regards to Fiat Chrysler (FCA) automobiles. The Commission sent a letter of formal notice asking Italy to respond to concerns about insufficient action taken regarding the emission control... Read more →


Federal court approves $225M settlement in VW 3.0L diesel case; California receives $66M plus two new VW ZEV models

The Volkswagen Group will pay $225 million, including $66 million to California, for harm resulting from the sale of its 3.0-liter diesel passenger cars that included emissions control “defeat devices,” under partial Consent Decrees (earlier post) approved by a Federal court. In addition, VW will contribute to California’s ZEV market... Read more →


FEV study finds optimizing engine for renewable diesel use reduces fuel consumption and emissions

A recent study conducted by engineering company FEV, commissioned by Neste Corporation, a leading global producer of renewable diesel, shows that modifying and optimizing engine control parameters to work optimally with pure HVO-type (Hydrotreated Vegetable Oil) renewable diesel—such as Neste MY Renewable Diesel—offers as-yet untapped potential to reduce fuel consumption,... Read more →


A new international study has found that laboratory tests of nitrogen oxide emissions from diesel vehicles significantly underestimate the real-world emissions by as much as 50%. A paper on the work is published in the journal Nature. The research, led by the International Council on Clean Transportation and Environmental Health... Read more →


TM4 and Cummins are jointly developing a plug-in hybrid powertrain for Class 7/8 transit buses that can reduce fuel consumption by at least 50% compared to conventional hybrid buses. The project aims to provide transit authorities with a flexible, more efficient drivetrain and a longer range zero-tailpipe-emission capability for inner-city... Read more →


IAV has developed a particularly closed-coupled diesel exhaust gas aftertreatment (EAT) system. The design allows the diesel oxidation catalyst (DOC) and particular filter/selective catalytic reduction (DPF/SCR) units to reach optimum working temperature more quickly which, even when driving in the low-load range, significantly cuts emissions. Under the EU6 standard, diesel... Read more →


US EPA settles with three trucking companies over California diesel rule; $201K in penalties

The Environmental Protection Agency announced settlements with three companies totaling $201,000 in penalties for violating California’s Truck and Bus Regulation. The companies either failed to install particulate filters on their own heavy-duty diesel trucks or failed to verify that trucks they hired for use in California complied with the state... Read more →


Blue Bird first to offer school buses with Allison Transmission’s FuelSense 2.0 to optimize fuel economy

Blue Bird Corporation is offering a new product for their new buses ordered on or after 1 May 2017 with Allison transmissions: FuelSense 2.0, featuring DynActive Shifting. This is a software upgrade to the previous FuelSense offering, which allows fleets to optimize fuel economy and performance to their specific needs.... Read more →


At the 38th International Vienna Motor Symposium this week, Continental is showcasing a 48-volt hybrid diesel vehicle which meets very stringent RDE (real driving emissions) limits on CO2 and NOx. The Continental Super-Clean Electrified Diesel combines electrification-based engine optimization and an electrically heated catalyst integrated in the exhaust aftertreatment system... Read more →


The fuel efficiency of new cars sold in the European Union (EU) continued to improve last year but at a slower rate, according to provisional data from the European Environment Agency. The 1.4 g of CO2/km reduction (-1.2%) compared to 2015 constitutes the smallest annual improvement recorded over the last... Read more →


Mercedes-Benz chose Auto Shanghai 2017 as the venue for the world première of the new S-Class. Among the highlights is new efficient engine range and a series of new technologies for electrification of the powertrain. Several new engines are planned for the new S-Class: in-line six cylinder diesel and gasoline... Read more →


Greyrock, Tsinhua U, DRI to assess potential of synthetic diesel to improve air quality in China

Greyrock Energy, a developer of a gas-to-liquids (GTL) process that produces synthetic diesel, will participate with Tsinghua University of Beijing, China and the Desert Research Institute (DRI) of Reno, Nevada to quantify the positive impact on air quality from the use of synthetic diesel fuels as compared with petroleum derived... Read more →


California ARB releases four new LCFS pathways for renewable diesel; 20.28 - 53.86 gCO2e/MJ

The California Air Resources Board (ARB) Low Carbon Fuel Standard (LCFS) staff has released for public comment four new Tier 2 renewable diesel (RD) pathways using soy oil, used cooking oil, tallow, and corn oil at the Diamond Green facility in St. Charles, Louisiana. Diamond Green Diesel (DGD) uses the... Read more →


A new study, led by a team from The Stockholm Environment Institute (SEI) at the University of York, has found that in 2010, about 2.7 million preterm births globally—or 18% of all pre-term births—were associated with outdoor exposure to fine particulate matter (PM2.5).The open-access study is published in the journal... Read more →