Maruti Baleno Mileage Comparison: Petrol vs CNG (2026)

The Maruti Baleno is a premium hatchback known for its spacious cabin and comfortable ride quality. You can choose between refined petrol and highly efficient factory-fitted CNG fuel options. The petrol engine gets a five-speed manual or a convenient AMT automatic transmission. The CNG version comes exclusively with a five-speed manual gearbox. This Maruti Baleno mileage comparison matters deeply for your long-term daily running costs. Buyers wanting driving convenience often prefer the petrol automatic variant. Budget-conscious drivers focus strictly on the excellent fuel efficiency of the CNG model.

Variant-Wise Price Difference

Before we proceed with the Maruti Suzuki Baleno mileage comparison, you must understand the price premium. The CNG option is available on the mid-spec Delta and Zeta variants. Let us look at the ex-showroom price difference for the popular Delta trim.

There is a typical premium for the CNG factory fitment. You pay an extra Rs. 90,000 for the Delta CNG variant.

Official ARAI Mileage Figures

Here are the lab-tested figures for the Maruti Baleno mileage.

Disclaimer: ARAI = lab-tested, not road-realistic.

Car mileage vs competitors for the available engine options

The Hyundai i20 delivers a lower petrol average compared to the Baleno. The Baleno offers an incredibly impressive 30.61 km/kg claimed CNG efficiency.

The Maruti Baleno achieves a significantly higher petrol average than most of its premium hatchback competitors. Interestingly, its mechanical twin offers identical figures with a different service experience; the Toyota Glanza mileage comparison confirms the same efficient 22.35 km/l for petrol and 30.61 km/kg for CNG.

Real-World Mileage (City vs Highway)

Below is the real-world average of the Maruti Baleno in both city and highway conditions.

Real-world numbers differ from ARAI figures because lab tests exclude traffic and air conditioning.

• City traffic drastically impacts petrol efficiency due to constant idling and gear shifts.
• Smooth driving styles significantly improve highway Maruti Baleno fuel efficiency.

• To keep those fuel stops infrequent, maintaining the right Maruti Suzuki Baleno tyre pressure is important to obtain the right mileage.

   

Performance Comparison

Beyond Baleno fuel efficiency, here is how the engine specs compare.

The real-world drivability difference is noticeable during highway overtakes with a full passenger load. Petrol engines are slightly less load sensitive when all five seats are occupied. You will feel a noticeable power drop in CNG mode. This power drop requires more frequent gear changes on steep inclines and flyovers.

Cost Comparison

Per km running cost

To understand the true running cost difference, we must use the Maruti Baleno real-world average mileage.

For calculation purposes:

• Petrol price assumed at Rs. 100/litre

• CNG price assumed at Rs. 80/kg

   

When you factor in realistic driving conditions, the difference becomes quite substantial. The CNG variant of the Baleno costs nearly half per kilometre compared to petrol. Your running cost with the Maruti Baleno petrol is roughly Rs. 6.25 per kilometre. The Baleno CNG running cost drops to just around Rs. 3.47 per kilometre. Even after accounting for slightly higher annual maintenance, the CNG version remains significantly more economical.

Monthly & 5-Year Fuel Cost Projection

Let us assume a realistic scenario of driving 1,500 km monthly. This will help us find your total fuel expenses.

The savings with CNG are massive over a five-year period. You save roughly Rs. 4,170 every single month on fuel expenses. You will recover the upfront Rs. 90,000 premium relatively quickly. It takes just about 22 months to cover this specific price difference. After that, you enjoy pure savings on your daily family commutes.

City vs Highway Efficiency Difference

City Use

Stop-and-go traffic drastically lowers petrol efficiency. CNG engines use less fuel while idling in heavy urban traffic jams. Frequent braking negatively impacts the average fuel efficiency of both fuel types.

Highway Use

Consistent cruising speeds drastically improve your highway mileage. Petrol engines perform better when overtaking slow trucks easily. CNG requires you to downshift gears for quick and safe highway manoeuvres.

Practical Ownership Tradeoffs

Whether you are buying a new or a used Maruti Baleno, here are the things you need to consider before deciding between the powertrain options:

• The 55-litre CNG cylinder significantly reduces the generous 318-litre boot capacity. You can only accommodate soft bags with limited luggage flexibility. 
• The CNG option is available in Delta and Zeta trims. You miss premium features like the 360-degree camera on the top Alpha variant. 
• CNG infrastructure in India is still expanding across rural highways. Long queues at CNG stations are common in metro cities, which wastes time. 

• CNG cars may require more frequent spark plug replacements during routine servicing.

   

Who Should Buy Which

Here is a quick summary for your buying decision.

Choose Petrol if:

• You need the absolute convenience of a smooth automatic gearbox.
• You frequently travel with heavy luggage and require maximum boot space.

• You prefer strong engine performance for effortless highway overtakes.

   

Choose CNG if:

• Your daily commute exceeds 50 kilometres in heavy stop-and-go traffic.
• You want the absolute lowest daily running costs possible for your family.
• Boot space is not your primary buying concern for daily city driving.