Green Gas Limited, the city gas distributor for Lucknow, lists CNG at ₹107.00 a kg from 6 am on 3 October 2026 on its price page. The car tool now uses this price for Lucknow. Petrol in Lucknow is ₹101.86 a litre (19 October 2026).
What it does to the payback
With the illustrative car on our home page (18 km a litre on petrol, 26 km a kg on CNG, a ₹90,000 higher price at 9% interest, 1,800 km a month):
- CNG now costs ₹4.12 a km against petrol’s ₹5.66, a saving of ₹1.54 a km.
- At ₹95.75 a kg, the price the tool used before this update, the CNG car paid back in 33 months. At ₹107.00 it takes 46 months.
- Below about 1,191 km a month, petrol is now the cheaper car over 10 years.
| At ₹95.75 a kg | At ₹107.00 a kg | |
|---|---|---|
| CNG cost a km | ₹3.68 | ₹4.12 |
| Saved a month | ₹3,557 | ₹2,778 |
| Pays back, counting interest | 33 months | 46 months |
| CNG ahead after 10 years | ₹2.06 lakh | ₹1.13 lakh |
18 km a litre on petrol at ₹101.86, 26 km a kg on CNG, ₹90,000 extra price at 9% a year, 1,800 km a month.
Check your own pump
Prices can differ within a city and change without much notice. If the price at your pump is different, type it into the tool under “Refine the assumptions”. Try it Petrol costs ₹5.66 a km, CNG ₹4.12. Starts at Lucknow prices. 18 km a litre and 26 km a kg, 9% a year interest on the extra price, prices held flat.Your distance and your pump prices
Every value we use, with its source and date, is listed in the assumptions changelog.
For education only. Not investment, tax or insurance advice. Examples use the figures stated in the guide; check your own before you act.