DF Diesel fuel.
WPOeDF Waste plastic oileDiesel fuel blend.
WPO 10 10% Waste plastic oil þ 90% Diesel fuel.
WPO 30 30% Waste plastic oil þ 70% Diesel fuel.
WPO 50 50% Waste plastic oil þ 50% Diesel fuel.
WPO 70 70% Waste plastic oil þ 30% Diesel fuel.
WPO 100% Waste plastic oil.
LPG Liquid petroleum gas.
TFC Total fuel consumption.
NO x Oxides of nitrogen.
HC Hydrocarbon.
CO Carbon monoxide.
CO 2 Carbon dioxide.
CA bTDC Crank angle before top dead centre.