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US diesel car registrations increased by 24% from 2010-2012, hybrids up 33%

New diesel car registrations increased by 24.3% in the US from 2010 through 2012, according to data compiled for the Diesel Technology Forum by R.L. Polk and Company.

The national registration information includes data for all types of passenger vehicles—cars, SUVs, pickup trucks and vans—in all 50 states and the District of Columbia from 1 January 2010 through 31 December 2012.

Diesel car and SUV registrations increased from 640,779 in 2010 to 796,794 at the end of 2012—a 24.34 percent increase. During this same period, hybrid car and SUV registrations increased from 1,714,966 to 2,290,903—a 33.58% increase. There currently are 27 diesels available in the US market compared to 46 hybrids. The total car and SUV registrations in the US increased by 2.75% during the same period.

When all passenger vehicle registrations are included—cars, SUVs, pickup trucks and vans—the diesels currently account for 6,658,399 vehicles while hybrids account for 2,295,500 vehicles throughout the US.

While total diesel vehicle registrations are slightly less than three percent in the US, auto analysts and market researchers virtually all agree diesel sales are going to increase significantly as the number of new diesels made in available domestically will more than double in the next two years. Some analysts predict diesel sales will reach 10 percent of the US market by 2020.

—Allen Schaeffer, Executive Director of the Diesel Technology Forum

Some top 3’s from the data:

  • Fastest Growth Diesel Cars and SUVs (2010-12): California +55%; Massachusetts +45%; New York +43%

  • Fastest Growth All Diesel Passenger Vehicles (2010-12) - Cars, SUVS, Pickup Trucks and Vans: District of Columbia +20%; Maine +13%; Pennsylvania +11%

  • 2012 Most Diesel Passenger Vehicles (Cars, SUVs, Pickup Trucks and Vans): Texas 775,395; California 572,303; Florida 292,692

  • 2012 Total Hybrid Cars, SUVS, Pickup Trucks and Vans: California 548,199; Florida 122,912; Texas 121,944

  • 2012 Most Diesel Cars and SUVS: California 84,106; Texas 64,272; Florida 49,838



A recent study has established a direct link between heart problems and pollution, specially fine particles (2.5) concentration.

Large cities should restrict the use of diesels, including polluting city diesel buses?


Why does everyone assume that only diesels produce PM2.5?

Certified emissions of the diesel- and CNG-versions of Cummins 8.9 liter urban bus engines show that the diesel is certified at 0.000 g/bhp-hr in the FTP (, while the CNG version is certified at 0.002 g/bhp-hr (

The 2009 ACES Phase 1 report showed that 4 large diesel truck engines (2007 U.S. compliant) had particle emissions that were essentially indistinguishable from HEPA-filtered background air over several different test duty cycles (


Ban or restrict the pre-2009 diesel units?

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