Is CNG the right answer to E20 As E20 fuel is worrying the Auto Enthusiasts. The simple solution to all these worries is a dual fuel car. Factory fitted CNG or a retrofitted one. As increased ethanol content would not only harm the engine and fuel system but also decrease fuel efficiency by 30% in proportion to the quantity of ethanol mix. For E10, E20 the efficiencies are 97% and 94% respectively. However, the efficiency of CNG remains intact. |