CALGARY, Alta. — Shell Canada says independent testing of its Shell Diesel Extra fuel proves it delivers fuel savings of greater than 2%.
Shell Diesel Extra was tested by FPInnovations’ Project Innovation Transport in June and September 2013. Two tractors (plus two control tractors) were used in testing, with one showing a fuel savings of 2.18% and the other coming in at 2.61%, for a combined average fuel savings of 2.4%.
Shell says its Diesel Extra fuel provides fuel savings of up to 3% by preventing the accumulation of carbon deposits in the injector nozzles. It also claims operators will lower their maintenance costs, since the engine is kept clean from deposits and the corrosion they can cause.
PIT tests the effectiveness of fuel-saving devices or technologies, using the SAE J1321 Joint TMC/SAE Fuel Consumption Test Procedure – Type II. It says its results represent a confidence level of 95%, as required by the standard.
The test trucks were 2009 Freightliner Cascadias with DD15 engines.
Because of the volatility of diesel prices, PIT noted it was difficult to determine a payback period. So instead it established a break-even point for Shell Diesel Extra of three cents per litre, meaning fuel savings will likely be achieved if the price gap between regular diesel and Shell Diesel Extra is less than three cents.
“It should also be mentioned that according to the manufacturer, Shell Diesel Extra helps to reduce the deposits on the injectors and improve combustion; therefore there may be additional savings possible from reduced maintenance expenses,” PIT reported.