Verified technical specifications, ARAI test bench vs real-world highway fuel economy, usable tank capacity at 200 BAR, boot space architecture, and running cost benchmarks across India.
Click any card to inspect full technical specs, real-world mileage & hydro-test rules.
1.5L K15C DualJet Dual VVT • 87 BHP
1.0L K10C DualJet Dual VVT • 56 BHP
1.2L Revotron 3-Cylinder Bi-Fuel • 72.5 BHP
1.5L K15C Smart Hybrid • 87 BHP
1.2L K12N DualJet Dual VVT • 76.5 BHP
1.2L Revotron 3-Cylinder • 72.5 BHP
1.2L K-Series DualJet Dual VVT • 76.5 BHP
1.2L Z-Series 3-Cylinder / K-Series DualJet • 76.5 BHP
1.2L Revotron 3-Cylinder Bi-Fuel • 72.5 BHP
1.2L Bi-Fuel 4-Cylinder Kappa • 68 BHP
1.2L Bi-Fuel Kappa 4-Cylinder • 68 BHP
Side-by-side fuel economy, usable fuel capacity at 200 BAR, driving range, and boot space.
| Model | Maker | ARAI Economy | Real City | Real Highway | Usable Gas | Full Range | Cylinder Setup | Action |
|---|---|---|---|---|---|---|---|---|
| Maruti Suzuki Ertiga CNG | Maruti Suzuki | 26.11 km/kg | 21 km/kg | 25.5 km/kg | 9.2 kg | 235 km | Single Forecourt Cylinder | Inspect → |
| Maruti Suzuki Wagon R CNG | Maruti Suzuki | 34.05 km/kg | 26.5 km/kg | 31 km/kg | 8.5 kg | 264 km | Single Forecourt Cylinder | Inspect → |
| Tata Punch iCNG | Tata Motors | 26.99 km/kg | 20.5 km/kg | 24.5 km/kg | 9 kg | 220 km | Patented Twin-Cylinder (2 x 30L) | Inspect → |
| Maruti Suzuki Brezza CNG | Maruti Suzuki | 25.51 km/kg | 19.5 km/kg | 23.5 km/kg | 8.6 kg | 202 km | Single Forecourt Cylinder | Inspect → |
| Maruti Suzuki Fronx CNG | Maruti Suzuki | 28.51 km/kg | 22.5 km/kg | 26.5 km/kg | 8.5 kg | 225 km | Single Forecourt Cylinder | Inspect → |
| Tata Tiago iCNG | Tata Motors | 26.49 km/kg | 20 km/kg | 24 km/kg | 8.4 kg | 201 km | Twin-Cylinder (2 x 30L) | Inspect → |
| Maruti Suzuki Baleno CNG | Maruti Suzuki | 30.61 km/kg | 24 km/kg | 28 km/kg | 8.5 kg | 238 km | Single Forecourt Cylinder | Inspect → |
| Maruti Suzuki Dzire CNG | Maruti Suzuki | 31.12 km/kg | 25 km/kg | 29.5 km/kg | 8.5 kg | 250 km | Single Forecourt Cylinder | Inspect → |
| Tata Altroz iCNG | Tata Motors | 26.2 km/kg | 19.5 km/kg | 23.5 km/kg | 9 kg | 212 km | Twin-Cylinder (2 x 30L) | Inspect → |
| Hyundai Grand i10 Nios CNG | Hyundai | 27 km/kg | 20 km/kg | 24 km/kg | 8.4 kg | 202 km | Single Cylinder / Hy-CNG Duo Dual Tank | Inspect → |
| Hyundai Exter Hy-CNG Duo | Hyundai | 27.1 km/kg | 20 km/kg | 24 km/kg | 8.8 kg | 211 km | Dual-Cylinder Hy-CNG Duo | Inspect → |
Calculated based on real-world combined mileage against prevailing retail forecourt prices: Delhi (ā¹76.59/kg), Mumbai (ā¹75.00/kg), Bengaluru (ā¹82.50/kg), and Pune (ā¹85.00/kg).
| Vehicle Model | Combined Mileage | Delhi (ā¹76.59) | Mumbai (ā¹75.00) | Bengaluru (ā¹82.50) | Pune (ā¹85.00) | Vs Petrol Cost |
|---|---|---|---|---|---|---|
| Ertiga CNG | 22.8 km/kg | ā¹3.36/km | ā¹3.29/km | ā¹3.62/km | ā¹3.73/km | ā¹7.50āā¹9.00/km |
| Wagon R CNG | 28.5 km/kg | ā¹2.69/km | ā¹2.63/km | ā¹2.89/km | ā¹2.98/km | ā¹7.50āā¹9.00/km |
| Punch iCNG | 22.2 km/kg | ā¹3.45/km | ā¹3.38/km | ā¹3.72/km | ā¹3.83/km | ā¹7.50āā¹9.00/km |
| Brezza CNG | 21.2 km/kg | ā¹3.61/km | ā¹3.54/km | ā¹3.89/km | ā¹4.01/km | ā¹7.50āā¹9.00/km |
| Fronx CNG | 24.2 km/kg | ā¹3.16/km | ā¹3.10/km | ā¹3.41/km | ā¹3.51/km | ā¹7.50āā¹9.00/km |
| Tiago iCNG | 21.8 km/kg | ā¹3.51/km | ā¹3.44/km | ā¹3.78/km | ā¹3.90/km | ā¹7.50āā¹9.00/km |
| Baleno CNG | 25.8 km/kg | ā¹2.97/km | ā¹2.91/km | ā¹3.20/km | ā¹3.29/km | ā¹7.50āā¹9.00/km |
| Dzire CNG | 27 km/kg | ā¹2.84/km | ā¹2.78/km | ā¹3.06/km | ā¹3.15/km | ā¹7.50āā¹9.00/km |
| Altroz iCNG | 21.2 km/kg | ā¹3.61/km | ā¹3.54/km | ā¹3.89/km | ā¹4.01/km | ā¹7.50āā¹9.00/km |
| Grand i10 Nios CNG | 21.8 km/kg | ā¹3.51/km | ā¹3.44/km | ā¹3.78/km | ā¹3.90/km | ā¹7.50āā¹9.00/km |
| Exter Hy-CNG | 21.8 km/kg | ā¹3.51/km | ā¹3.44/km | ā¹3.78/km | ā¹3.90/km | ā¹7.50āā¹9.00/km |
Every CNG-powered motor vehicle registered in India is governed by the Gas Cylinder Rules, 2016 (Rule 35), codified and enforced by the Petroleum and Explosives Safety Organization (PESO) under the Department for Promotion of Industry and Internal Trade (DPIIT), Ministry of Commerce and Industry.
Private cars require cylinder hydro-stretch testing every 3 years. Commercial transport must be tested annually.
Cylinders are water-jacket hydro-tested at 330 BAR (1.5x standard working pressure of 220 BAR) to detect permanent volumetric expansion.
Forecourts will refuse gas dispensing without a valid metal compliance plate embossed with testing station code and validity date.
The Maruti Suzuki Wagon R CNG leads the Indian passenger market with an ARAI-certified fuel economy of 34.05 km/kg. On open 4-lane highways at a steady cruising speed of 80 km/h, verified real-world economy ranges between 30.5 and 32.0 km/kg.
Traditional single-cylinder CNG cars (Maruti Suzuki) install one large 55Lā60L tank in the trunk, occupying 60ā70% of cargo space. Dual-cylinder models (Tata iCNG, Hyundai Hy-CNG Duo) split gas capacity into two 30L cylinders under the luggage board, preserving 200L+ of flat, usable boot space.
A standard 60-liter water capacity cylinder holds approximately 8.5 to 9.2 kg of CNG at the standard regulatory forecourt dispensing pressure of 200 BAR. At lower compressor pressure (180 BAR), it accepts only 7.5 to 8.2 kg. At 220 BAR on winter mornings, capacity reaches up to 10.1 kg.
Under Rule 35 of the Gas Cylinder Rules, 2016 administered by PESO (Petroleum and Explosives Safety Organization), all CNG cylinders in passenger vehicles must undergo hydrostatic re-testing every 3 years from registration date.
Scan with your phone camera to open and install the PWA instantly on your home screen.
Install CNGbunk to your iOS Home Screen in 2 simple taps:
Fast 1-tap navigation, live queue checks, and offline highway maps: