Diesel Price Raised Despite Lower Cost as Petroleum Levy Increased by Rs2 Per LitreFederal government increases petroleum levy on high-speed diesel by Rs2 per litre. High-speed diesel price increased by Rs1.39 per litre for August 12. Petrol continues to carry an Rs80 per litre petroleum levy, while a separate Rs5 climate support levy applies to both fuels. The documents show that the petroleum levy on high-speed diesel has been increased by Rs2 to Rs76.28 per litre. Despite the reduction in the international cost, consumers did not receive the benefit because of the higher petroleum levy.