New Study Out About Diesel Emissions from Diesel Technology Forum.

In the mid 2000’s, diesel emissions levels started to change. By 2007, the diesel emission levels started to make a drastic change leading up to the aggressive levels that were required in 2010. The cleaner emission levels do seem to come at the cost of fuel economy, but the reduction in tail pipe emissions is very noticeable.

Recently, the Diesel Technology Forum worked with IHS Automotive to compile a list of the cleanest states. Check out their official release with the data compiled below. What are your thoughts on this information? Are you pro clean tailpipe emissions?

Official release:

 Indiana (50.4%), Utah (45.4%) & Oklahoma (44.8%) Have Highest Percentage Of Clean Diesel Trucks

. . . Texas, California & Indiana Lead Nation in Total Number of Clean Diesel Trucks

More than one-third of all medium and heavy duty commercial trucks registered in the United States – 2.9 million of 8.8 million trucks – are now equipped with newer technology clean diesel engines, according to new data compiled by HIS Automotive for the Diesel Technology Forum (DTF).

The new data includes total registration information on Class 3-8 trucks from 2007 through 2013 in all 50 states and the District of Columbia.  Beginning in 2007, all heavy duty diesel trucks sold had to meet particulate emissions levels of no more than 0.01 grams per brake horse-power hour (g/HP-hr) – a level near zero.

“Because more than 95 percent of all heavy duty trucks are diesel-powered it is significant that more than one-third of these trucks are near zero emission vehicles,” said Allen Schaeffer, the Executive Director of the Diesel Technology Forum.  “Diesel trucks are literally the driving force behind goods movement in the U.S. and worldwide economies so the fact that the clean diesel fleet is increasing is good news for improved fuel efficiency and the environment. These new trucks are so clean that it now takes more than 60 of today’s clean diesel trucks to equal the emissions from a single 1988 truck.

“Last year was the fifth consecutive year of increased penetration of the new clean diesel trucks in the fleet, reflecting the continuing confidence that American truckers have in the performance and fuel efficiency improvements of new technology diesel engines,” Schaeffer said.

For more information about clean diesel trucks go to:

http://www.dieselforum.org/diesel-at-work/delivering-for-america

(top 10 lists below)

U.S. Clean Diesel Truck Growth by Year

 

2007

2008

2009

2010

2011

2012

2013

Percentage New Diesel Trucks

9.4%

13.9%

16.9%

20.1%

24.1%

28.6%

33.5%

Percentage Annual Increase

+4.5%

+3.0%

+3.2%

+4.0%

+4.5%

+4.9%

(Source: IHS Automotive, June 2014 for the Diesel Technology Forum)

2007 & Newer Diesel Truck Technology Are a True Environmental Success Story . . .

Reducing NOx By 99% & PM By 98%

“Emissions from today’s diesel trucks and buses are near zero thanks to more efficient engines, more effective emissions control technology and the nationwide availability of ultra-low sulfur diesel fuel.The new clean diesel technology has reduced emissions from heavy-duty diesel trucks and buses by 99 percent for nitrogen oxides (NOx) and 98 percent for particulate emissions.

“In addition, model year 2010 and later trucks are experiencing an average of three to five percent improvement in fuel economy. Additional fuel-saving strategies are being developed to improve engine efficiency, vehicle aerodynamics and expanded application of hybrid technology.”

How EPA’s 2007/2010 Truck & Diesel Fuel Regulations Led To Near Zero Emissions

            In December 2000, EPA adopted a rulemaking to establish stringent standards designed to reduce emissions from on-road heavy-duty trucks and buses by up to 95 percent and to cut the allowable levels of sulfur in diesel fuel by 97 percent.

Under the Environmental Protection Agency’s 2007/2010 heavy-duty engine and highway diesel fuel sulfur control requirements, beginning with the 2007 model year, 100 percent of the new on-road diesel trucks were required to meet the near zero particulate emissions standards and 50 percent were required to meet the lower NOx exhaust standards.  Beginning with the 2010 model year, 100 percent of the new on-road heavy-duty diesel engines were required to meet the NOx exhaust standards.

In addition, a sulfur cap of 15 parts per million (ppm) was instituted beginning June 1, 2006 for 80 percent of the diesel fuel sold by major refiners for use in highway vehicles.  The 15 ppm sulfur cap was increased to 100 percent after December 31, 2010. 

For more information go to: http://www.epa.gov/cleandiesel/index.htm

Texas, California & Indiana Have Most Overall Number of Clean Diesel Trucks . . .

New Technology Diesel Trucks States by Total (2007 & Newer)

Class 3-8

 

State

Total

1)

Texas

345,456

2)

California

209,098

3)

Indiana

204,653

4)

Illinois

130,423

5)

Pennsylvania

123,313

6)

New York

110,611

7)

Florida

107,288

8)

Ohio

107,081

9)

Oklahoma

  87,532

10)

North Carolina

  82,622

 

National Total

2,966,311

(Source: IHS Automotive, June 2014 for the Diesel Technology Forum)

Texas, Indiana & California Have Most Post-2010 Clean Diesel Trucks . . .

New Technology Diesel Trucks States by Total (20011 & Newer)

Class 3-8

 

State

Total

1)

Texas

170,556

2)

Indiana

116,280

3)

California

  82,033

4)

Pennsylvania

  61,931

5)

Illinois

  58,157

6)

Oklahoma

  52,078

7)

Ohio

  49,822

8)

New York

  45,762

9)

Florida

  42,608

10)

Missouri

  37,996

 

National Total

1,396,771

Indiana, Utah & Oklahoma Have Highest Percentage of Clean Diesel Trucks . . .

New Technology Diesel Trucks States by Percentage (2007 & Newer)

Class 3-8

 

State

Percentage

1)

Indiana

50.4%

2)

Utah

45.4%

3)

Oklahoma

44.8%

4)

Texas

41.9%

5)

Wyoming

41.4%

6)

Louisiana

37.8%

7)

Nebraska

37.5%

8)

Montana

37.4%

9)

Maryland

37.2%

10)

Rhode Island

36.5%

 

National Percentage

33.5%

Indiana, Oklahoma & Utah Have Highest Percentage of Post-2010

Clean Diesel Trucks . . .

New Technology Diesel Trucks States by Percentage (2011 & Newer)

Class 3-8

 

State

Percentage

1)

Indiana

28.7%

2)

Oklahoma

26.6%

3)

Utah

23.4%

4)

Texas

20.7%

5)

Nebraska

20.5%

6)

Wyoming

20.3%

7)

Tennessee

19.5%

8)

Montana

19.0%

9)

Louisiana

18.5%

10)

Missouri

18.2%

 

National Percentage

15.8%

Oklahoma, Kansas & North Dakota Have Fastest Growth of Clean Diesel Trucks…

Fastest Growth All Diesel Passenger Vehicles 2012-2013

Class 3-8

 

State

Percentage

1)

Oklahoma

+36.6%

2)

Kansas

+30.9%

3)

North Dakota

+29.1%

4)

California

+23.8%

5)

Rhode Island

+23.3%

6)

South Dakota

+22.0%

7)

Virginia

+21.9%

8)

Minnesota

+21.1%

9)

Colorado

+20.9%

10)

Texas

Ohio

+20.8%

+20.8%

 

ABOUT THE DIESEL TECHNOLOGY FORUM

The Diesel Technology Forum is a non-profit national organization dedicated to raising awareness about the importance of diesel engines, fuel and technology, and working with policymakers and other stakeholders on common solutions.  Forum members are leaders in clean diesel technology.  For more information visit www.dieselforum.org.

About the author

Chad Westfall

With diesel running through his veins from childhood, Chad has more than a decade of experience in the automotive industry. From editorial work to wrenching, there isn’t much he hasn't conquered head-on. When he’s not writing and shooting trucks and tech, you’ll find him in the shop working on turning the ideas floating around in his head into reality.
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