Petrol Vs Diesel

The price of petrol and diesel are now at the extremum nearly at a difference of more than 20 rupees. But with mileage, they are in reverse order. Low price fuel with high efficiency. A myth (can be called as) of petrol car users as high class people and so petrol goes into luxury catogery. But the reality now is entirely different. Petrol car users are of middle class. This happens because of the vechile cost difference of petrol engine / diesel engine. Where the affordability of a diesel engine is far beyond for a middle class. This topic is now left to the readers for discussion...