

Hyundai Grand i10 Nios Mileage Comparison: Petrol vs CNG
- 1Hyundai Grand i10 Nios mileage is great across all fuel types.
- 2This Hyundai Grand i10 Nios mileage comparison shows huge savings.
- 3Check the real-world average and fuel efficiency figures right here.
The Hyundai Grand i10 Nios is a premium urban hatchback. It offers exceptional comfort and everyday practicality. You can choose between refined petrol and factory-fitted CNG options. The petrol engine gets a manual or automatic transmission. The CNG version comes exclusively with a manual gearbox. This Hyundai Grand i10 Nios mileage comparison is important. It directly impacts your monthly running costs. Convenience seekers often prefer the petrol automatic variant. Budget-conscious drivers love the fuel efficiency of the CNG model.
Variant-Wise Price Difference
Before we proceed with the Hyundai Grand i10 Nios mileage comparison, we must check prices. It is important to understand the premium you pay for CNG. The CNG option is available on Magna, Sportz, and Asta variants. Let us look at the ex-showroom price differences.
| Variant | Petrol Price | CNG Price | Price Gap |
| Magna MT | ₹6.28 lakh | ₹7.22 lakh | ₹94,000 |
| Sportz MT | ₹6.83 lakh | ₹7.72 lakh | ₹89,000 |
| Asta MT | ₹7.40 lakh | ₹8.23 lakh | ₹83,000 |
There is a typical premium for the CNG factory fitment. You pay an extra amount for the CNG variants.
ARAI Mileage Figures
Here are the official lab-tested figures for the vehicle. These numbers showcase the claimed Hyundai Grand i10 Nios mileage.
| Engine & Transmission | Official Mileage |
| Petrol Manual (MT) | 20.7 km/l |
| Petrol Automatic (AMT) | 20.1 km/l |
| CNG Manual (MT) | 27.3 km/kg |
Disclaimer: ARAI mileage is not equivalent to real-world average. ARAI figures are tested under laboratory-controlled conditions. Real-road driving provides slightly varying fuel efficiency statistics.
Mileage vs Competitors
| Car Model | Petrol Mileage | CNG Mileage |
| Hyundai Grand i10 Nios | 20.7 km/l | 27.3 km/kg |
| Tata Tiago | 20.09 km/l | 26.49 km/kg |
| Maruti Swift | 24.8 km/l | 32.85 km/kg |
The Tata Tiago delivers a slightly lower petrol average. The Maruti Swift achieves higher numbers across all formats. The Hyundai Grand i10 Nios provides a highly balanced performance. It offers a great mix of power and fuel efficiency.
If you need more rear-seat space and highway stability while staying within the same family, the Hyundai i20 mileage comparison shows that you can still achieve nearly 20.0 km/l in a premium hatchback format.
Real-World Fuel Efficiency (City vs Highway)
Below is the real-world average of the Hyundai Grand i10 Nios. This covers both city and highway driving conditions.
| Condition | Petrol (Manual) | CNG (Manual) |
| City | 12-14 km/l | 19-21 km/kg |
| Highway | 16-18 km/l | 25-27 km/kg |
In city driving conditions, the petrol manual delivers around 13 km/l. The CNG manual returns a significantly higher 20 km/kg. On the highway, the fuel efficiency gap remains quite substantial. The petrol manual offers approximately 17 km/l. The CNG variant stretches further with an impressive 26 km/kg. Real-world numbers differ from ARAI figures. Lab tests exclude heavy traffic and air conditioning. City traffic impacts petrol efficiency due to constant idling. Smooth driving styles significantly improve highway average figures.
To ensure your fuel efficiency does not drop, maintaining the right Hyundai Grand Nios i10 tyre pressure is important to obtain the right mileage.
Performance Comparison
Beyond fuel efficiency, let us look at the performance specs. Here is how the petrol and CNG models compare.
| Spec | Petrol | CNG |
| Engine size | 1197 cc | 1197 cc |
| Power | 82 bhp | 68 bhp |
| Torque | 113.8 Nm | 95.2 Nm |
| Transmission | MT / AMT | MT only |
The real-world drivability difference is noticeable during highway overtakes. Petrol engines are less load sensitive when fully occupied. You will feel a power drop in CNG mode. This drop requires more frequent gear changes on steep inclines. The petrol engine is incredibly refined and silent.
Cost Comparison
Running Cost
To understand the true running cost difference, we need real data. We must use the real-world average, not just ARAI figures.
For calculation purposes:
- Petrol price assumed at ₹100 per litre.
- CNG price assumed at ₹80 per kg.
| Fuel Type | Real-World Mileage | Fuel Price | Cost Per Km |
| Petrol (MT) | 15 km/l | ₹100/litre | ₹6.66 per km |
| CNG (MT) | 22 km/kg | ₹80/kg | ₹3.63 per km |
When you factor in realistic conditions, the difference is substantial. The CNG variant costs nearly half per kilometre. Your running cost with petrol is roughly ₹6.66 per kilometre. The CNG running cost drops to just ₹3.63 per kilometre. Even after accounting for slightly higher annual maintenance, CNG wins. It remains significantly more economical for high-mileage users.
Monthly and Five-Year Projection
Let us assume you drive 1,500 kilometres every single month. This helps find your total fuel expenses over time.
| Timeframe | Petrol Cost | CNG Cost |
| Monthly | ₹10,000 | ₹5,445 |
| Yearly | ₹1,20,000 | ₹65,340 |
| 5-Year | ₹6,00,000 | ₹3,26,700 |
The savings with CNG are massive over a five-year period. You save roughly ₹4,500 every single month. You will recover the upfront premium very quickly. It takes less than two years to cover this difference. After that, you enjoy pure savings on daily commutes.
Practical Ownership Tradeoffs
Whether you are buying a new or a used Hyundai Grand i10, here are the things you need to consider before deciding between the powertrain options:
- Boot Space Impact
The CNG tank significantly reduces your available boot capacity. You can only accommodate soft bags with limited luggage flexibility. Hyundai now offers dual-cylinder tech to improve boot space slightly.
- Variant Limitation
You might miss out on a few premium automatic features. However, Hyundai offers CNG in multiple well-equipped trims.
Refuelling Convenience
CNG infrastructure in India is still expanding rapidly. Long queues at CNG stations are common in metro cities. Petrol stations are available absolutely everywhere without any wait times.
- Maintenance and Reliability
CNG cars may require more frequent spark plug replacements. However, Hyundai factory-fitted CNG kits are incredibly reliable and safe.
Who Should Buy Which
Here is a quick summary for your final buying decision.
Choose Petrol if:
- You absolutely need the convenience of an automatic gearbox.
- You frequently travel with heavy luggage and rear passengers.
You prefer strong engine performance for quick highway overtakes.
Choose CNG if:
- Your daily commute exceeds 50 kilometres in heavy traffic.
- You want the absolute lowest daily running costs possible.
- Huge boot space is not your primary buying concern.
Frequently Asked Questions
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