Natural Gas Vehicle Reports and Studies
Gas Quality Home Page
NGV Engine Performance Reports
NGV Legacy Fleet Study (Adobe PDF, 124 KB)
Cummins Engine Study (Adobe PDF, 220 KB)
Detroit Diesel Engine Study (Adobe PDF, 176 KB)
Detroit Diesel 50 G Engine Testing Project - Report (Adobe PDF, 3.6 MB)
Detroit Diesel 50 Gas Engine - Field Test Report (Adobe PDF, 2.0 MB)
Cummins, John Deere, and Detroit Diesel Engine Testing Report (Adobe PDF, 5.3 MB)
Information Related to Proposed Revisions of the CARB CNG Fuel Specification Regulations
SDG&E and SoCalGas Transmittal Letter 041306 (Adobe PDF, 30 KB)
Southern California Heavy-Duty CNG Vehicle Report - 2005 Update 041006 (Adobe PDF, 153 KB)
GTI Light-Duty Vehicle Fuel Composition Study (Adobe PDF, 389 KB)
2005 CARB CNG Fuel Specification Workshop Presentation from SDG&E and SoCalGas 80305 (Adobe PDF, 62 KB)
CARB Proposed Revisions to the CARB CNG Fuel Specification 062805 (Adobe PDF, 9 KB)
SDG&E and SoCalGas Transmittal Letter 033009 (Adobe PDF, 30 KB)
Southern California Heavy-Duty CNG Vehicle Report - 2008 Update 033009 (Adobe PDF, 512 KB)
Effects of Gas Composition on Emissions from Heavy-Duty Natural Gas Engines -- October, 2009 (Adobe PDF, 1 MB)
Updated 10/2009
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