Guides about petrol

Illustration of three fuel pump nozzles for petrol, diesel and CNG, for the used car fuel comparison

Buying a Used Car

Petrol vs Diesel vs CNG: Which Used Car Makes Sense for Kolkata?

Compare petrol, diesel and CNG used cars on purchase price, fuel cost, maintenance, usage and rules, with a simple break-even method to test your own driving.

Rathika Editorial Team · 12 Nov 2026 · 6 min read