GS 3: Science & TechnologyGS 3: Environment & EcologyGS 3: EconomyPrelimsGS 3: Infrastructure: Energy, Ports, Roads, Airports, Railways etc.
E20 petrol can reduce fuel economy by 2-6%: Gadkari, Pg6
Minister Gadkari reveals E20 petrol cuts fuel economy by 2-6% but offers 30% lower carbon emissions and better vehicle performance.