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How good and economical a CNG car is compared to a petrol car, know the running cost also.

Summary

CNG vs Petrol Cars Running Cost And Performance: While buying a new car, people often have a dilemma whether to buy a petrol car or a CNG car. This is very common among those who buy budget cars, i.e. cars priced below Rs 10 lakh. CNG cars have lower running costs and better mileage, whereas…

Ronit Sharma

By Ronit Sharma
Feb 07, 2026, 11:48 AM IST

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How good and economical a CNG car is compared to a petrol car, know the running cost also.

CNG vs Petrol Cars Running Cost And Performance: While buying a new car, people often have a dilemma whether to buy a petrol car or a CNG car. This is very common among those who buy budget cars, i.e. cars priced below Rs 10 lakh. CNG cars have lower running costs and better mileage, whereas petrol cars are comparatively expensive and have lower fuel efficiency than CNG. In such a situation, we thought why not today compare and tell you some very important things including performance, mileage and running cost of CNG and petrol cars, so that your confusion is cleared.

What is the difference between the prices of CNG and petrol?

Generally CNG is cheaper than petrol, but in some cities this difference is quite less. In metros like Delhi and Mumbai, the price of CNG per kilogram is cheaper than Rs 80, while in other cities including Patna, Lucknow, Jaipur it ranges from Rs 85 to around Rs 100 per kilogram. In metros, customers are benefiting more due to cheaper CNG, but in other cities, there will not be much difference from petrol which is worrying. Still, CNG is cheaper than petrol and it is definitely beneficial for the customers. The running cost of CNG cars is lower than petrol.

CNG gives more mileage

The mileage of CNG cars is much better than petrol cars. While in petrol cars you will get fuel efficiency of 15 to 22 kilometers per kilogram, in CNG cars it goes up to 22 to 35 kilometers per kilogram. Due to this, various CNG cars and SUVs of companies like Maruti Suzuki, Tata Motors and Hyundai are sold well. In recent times, the sales of CNG powered SUVs have gained tremendous momentum and the bumper sales of Tata Nexon is a direct example of this.

…but performance will have to be compromised

Now when it comes to performance, petrol cars may be more expensive and give less mileage than CNG cars, but they are better in terms of performance. CNG cars generate less power and torque than petrol powered cars and this directly impacts the performance. In such a situation, those people who have to travel 50 to 100 kilometers every day in the hustle and bustle of a big city and their budget is also not high, then CNG cars are a better option, but for those who want performance and also highway running, then petrol or diesel cars will prove to be a better option.

Some very good alternatives to CNG cars

CNG cars are being sold in abundance in the Indian market in the last few years and there are good options from many companies. Among CNG powered hatchbacks, Maruti Suzuki’s Alto, S-Presso, Celerio, WagonR, Swift and Baleno as well as Tata Motors’ Tiago and Altroz ​​as well as Hyundai’s Grand i10 Nios are the best options. At the same time, Maruti Dezire and Hyundai Aura are good options in the sedan segment. Talking about CNG powered SUVs, Tata Motors’ Punch and Nexon as well as Maruti’s Brezza, Front, Grand Vitara, Victoris and Hyundai’s Exeter are great options. Maruti Suzuki Ertiga CNG is a great option in the 7 seater segment.