^ gud that u added the sulphar part,
Deisel around the world is expensive then petrol but in a mch pure form thats y they have D4Ds and till date D4Ds are failed or flop or not easy to manage in Pakistan.
But still Deisels give a better mileage as less fuel is burnt. but the 7rs Difference in Petrol and Deisel is huge. Toyota would now be selling Deisel corollas at undercost.
with CNg selling at 55 (goverment price) and around 48-49 (where theres competion) and Petrol (e-10) at 66 who needs Deisel or even CNg wen get almost the same mileage.