New Report Questions Truck Engine Fuel Use Data
MONTREAL, QC -- Relying on the electronic data from a truck's engine computer may not be the most accurate gauge of fuel economy, according to a not-for profit engineering and research group for the North America trucking industry. The report from Performance Innovation Transport Group (PIT Group) details electronic control module (ECM) data precision and accuracy between engine manufacturers and among engine models from a single manufacturer. The study compares engine ECM data with actual test track fuel consumption and was conducted in the fall of 2014 on 14 different vehicles with engines from four manufacturers. The test track evaluations, which followed the Joint TMC/SAE Fuel Consumption Test Procedure Type II, compared fuel consumption data provided by the engine ECMs, a procedure that is generally regarded as an industry standard for testing.