California, Texas & Florida Lead U.S. in Fuel-Efficient Diesel & Hybrid Passenger Vehicles

By Solar Today Magazine

Washington, D.C. – California, Texas and Florida lead the U.S. with the most registrations of fuel-efficient clean diesel and hybrid passenger vehicles according to a new analysis and data released today by the Diesel Technology Forum (

The analysis is based on data that includes the registration statistics of all passenger vehicles – cars, SUVS, pickup trucks and vans – that were compiled by R.L. Polk and Company in all 50 states and the District of Columbia through December 31, 2013.

“Consumers have an ever-growing number of choices for more fuel-efficient vehicles and this analysis shows that clean diesels are gaining in popularity all across the nation,” said Allen Schaeffer, Executive Director of the Diesel Technology Forum.  “Diesel car registrations are up 30 percent since 2010 while the overall market only increased 3.6 percent.

Clean Diesel Vehicles Are 30% More Fuel Efficient Than Gasoline

“Clean diesel technology is likely to continue to grow in the U.S. based on consumer acceptance of diesel as a clean and proven high-fuel economy choice.  Diesels are about 30 percent more fuel efficient than gasoline vehicles and do not require compromises in vehicle performance, driving patterns or vehicle utility.

“Clean diesels also deliver a competitive or superior total-cost-of-ownership compared to other fuel efficient technologies.   The increasing number of diesel offerings from manufacturers reflects their confidence in the technology and its importance as they select fuel- efficient strategies to meet the 2025 higher fuel economy requirements,” Schaeffer said.

Illinois, Arizona & California Are Showing Fastest Growth in Diesel Car Registrations

According to the Polk data, Illinois (+25%), Arizona (+15.5%) and California (+11.3%) lead the pack of states with the fastest-growing registrations for clean diesel cars and SUVs (2013 vs. 2012).

“One of more interesting findings is the universal appeal of clean diesel cars trucks and SUVs as we see new registrations of diesel cars trucks and SUVs growing in all regions of the U.S. – red states, blue states, urban and rural regions alike,” Schaeffer said.  “This can be explained by clean diesel cars proven fuel efficiency and because diesel fuel is widely available at more than half of all service stations today.

Western States Like Wyoming, Montana & Idaho Have Highest Percentage of Diesels

On a percentage of all registered vehicles – cars, pickup trucks, vans, SUVs – basis, there are more diesel drivers in Western states like Wyoming (10.8%), Montana 8.1%) and Idaho (6.9%).

“Consumers there have long valued the high fuel efficiency and driving ranges of diesel vehicles – some which approach 800 miles on a single tank of fuel,” Schaeffer said.  “But these results show an equally high interest in clean diesel in populated and more urban states.  Among the top ten states for diesel car and SUV registrations in 2013 were California, Texas, Florida, Pennsylvania, Washington, New York, Illinois, North Carolina, Virginia and New Jersey.

Diesel Pickup Trucks Are Always Popular In The West . . .

And Now Gaining Ground in the Northeast

“The popularity of diesel powered pick-up trucks in Western states is a well-known, but five of the top 10 fastest growing states in 2013 for diesel pick-up trucks are Northeastern states – Vermont, Delaware, New Hampshire, Massachusetts and Rhode Island,” Schaeffer said.

“Pick-up trucks continue to dominate the overall registration numbers for diesel, but we can see that changing in the coming years as new diesel engine options appear in an increasing number of cars, crossovers, SUVs and light-duty and compact pick-up trucks.”

Diesel & Hybrid Registrations Are Both Increasing

In 2013, diesel registrations increased by 410,040 nationally and hybrids increased by 531,385.  The analysis also showed that while overall diesel sales were up 30 percent in the 2010-2013 period, hybrid sales increased by 64.5 percent.

“We fully expected that hybrids would outpace diesel sales based on the number of choices available to consumers during this timeframe,” Schaeffer said.  “In 2013, there were 23 diesel cars and SUV choices for consumers, but more than double that – 50 choices – of hybrids.  We are poised, however, to see the number of clean diesel choices grow in the next 18 months to encompass more vehicle classes and price ranges which will make diesels increasingly accessible to more consumers.  Already we know of 16 announced new clean diesel options that are coming to the U.S. later this year through 2017.”

7 Million Diesel & 2.8 Million Hybrid Passenger Vehicles Now Registered In U.S.

Among passenger vehicle registrations, diesels currently account for over 7 million vehicles while hybrids account for 2.8 million vehicles in the U.S., according to the Polk data. Diesel registrations accounted for 2.8 percent of all passenger vehicles – cars, SUVs, pickup trucks and vans. However, diesels accounted for 10.6 percent of all pickup truck registrations.

“Diesel cars and SUVs are emerging in the U.S. market,” Schaeffer said. “While diesels account for about 50 percent of all auto sales in Europe, diesels are a more modest three percent in the U.S.  But clean diesel vehicles are poised to take off, as evidenced by the number of clean diesels being introduced in the U.S. market and there will an estimated 60 diesels vehicles available by 2017.  As a result we could see the diesel market in the U.S. reach 10 percent by 2020 as Americans learn more about the proven real world fuel efficiency benefits and long term value of the new clean diesel technology.”

Texas, California & Florida Have the Most Diesel Vehicles . . .

Total Diesel Passenger Vehicles 2013

(Cars/SUVS/Pickup Trucks/Vans)

State      Diesels Hybrids
1) Texas 837,426 153,557
2) California 609,212 698,560
3) Florida 314,228 150,885
4) Washington 245,306 103,429
5) Pennsylvania 226,574   86,499
6) Colorado 198,906   56,869
7) North Carolina 197,305   77,943
8) Ohio 191,924   69,739
9) Georgia 189,018   76,168
10) Oregon 188,976   59,465
National Totals 7,068,439 2,826,885

(Source:  R.L. Polk and Company, May 2014 for the Diesel Technology Forum)


North Dakota, DC & Illinois Are Fastest Growing Diesel States . . .

Fastest Growth All Diesel Passenger Vehicles 2012-2013

(Cars/SUVS/Pickup Trucks/Vans)

State       % Increase 
1) North Dakota +24.12%
2) District of Columbia +15.94%
3) Illinois +13.62%
4) Delaware +10.21%
5) Idaho +  8.55%
6) New Jersey +  8.54%
7) Ohio +  8.33%
8) South Dakota +  8.01%
9) Texas +  8.00%
10) Arizona +  7.68%


Texas, California & Florida Have The Most Diesel Pickup Trucks . . .

Total Diesel Pickup Trucks 2013

State       Total
1)  Texas 747,760
2) California 478,847
3) Florida 243,887
4) Washington 202,384
5) Colorado 174,332
6) Pennsylvania 170,274
7) Oregon 161,007
8) North Carolina 159,679
9) Georgia 157,332
10) Ohio 157,005
  National Total 5,891,198

California, Texas & Florida Have The Most Diesel Cars & SUVs . . .

Total Diesel Cars & SUVS 2013

State       Total
1) California 93,654
2) Texas 70,311
3) Florida 53,061
4) Pennsylvania 36,373
5) Washington 33,940
6) New York 32,478
7) Illinois 31,776
8) North Carolina 29,229
9) Virginia 27,237
10) New Jersey 25,224
  National Total 833,324

California, Texas & Florida Have the Most Hybrid Passenger Vehicles . . .

Total Hybrid Passenger Vehicles 2013

(Cars/SUVS/Pickup Trucks/Vans)

State       Total
1) California 698,560
2) Texas 153,557
3) Florida 150,885
4) New York 131,962
5) Illinois 110,614
6) Washington  103,429
7) Virginia 100,551
8) Pennsylvania   86,499
9) Massachusetts   77,666
10) Georgia   76,168
  National Total 2,826,885

Georgia, Oklahoma & Michigan Are Fastest Growing Hybrid States . . .

Fastest Growth All Hybrid Passenger Vehicles 2012-2013

(Cars/SUVS/Pickup Trucks/Vans)

State       % Increase 
1) Georgia 54.32%
2) Oklahoma 47.38%
3) Michigan 35.70%
4) Illinois 33.82%
5) Alabama 30.14%
6) South Carolina 27.67%
7) California 27.40%
8) Missouri 27.26%
9) Hawaii 26.77%
10) Arizona 26.32%


The following Top 10 charts and data are available online:


Annual Registration Data 2010-13

  • U.S. Diesel & Hybrid Passenger Vehicle Registration Data (2010-13)
  • All Vehicle Registration Date (2010-13)


Top 10 States With Highest Combined Fuel Efficient Diesel & Hybrid Passenger Vehicles

  • California, Texas & Florida Have The Most Combined Diesel & Hybrid Passenger Vehicles . . .
  • Wyoming, Montana & Idaho Have The Highest Percentage of Combined Diesel & Hybrid Passenger Vehicles . . .


Top 10 States for Diesel & Hybrid Passenger Vehicle Growth

  • North Dakota, DC & Illinois Are Fastest Growing Diesel States . . .
  • Georgia, Oklahoma & Michigan Are Fastest Growing Hybrid States . . .


Top 10 States For Total Number of Diesel & Hybrid Passenger Vehicles

  • Texas, California & Florida Have the Most Diesel Vehicles . . .
  • California, Texas & Florida Have the Most Hybrid Vehicles . . .


Top 10 States for Diesel Cars & Pickup Trucks

  • Wyoming, Montana & Idaho Have Highest Percentage Of Diesel Passenger Vehicles . . .
  • Illinois, Arizona, California & North Dakota Are Fastest Growing Diesel Car/SUV States . . .
  • California, Texas & Florida Have The Most Diesel Cars/SUVs . . .
  • North Dakota, Vermont & Illinois Are the Fastest Growing Diesel Pickup Truck States . . .
  • Texas, California & Florida Have The Most Diesel Pickup Trucks . . .
  • Wyoming, Utah & Montana Have the Highest Percentage Of Diesel Pickup Trucks . .  .

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

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