Maruti Vitara Brezza Mileage Comparison: Petrol vs Diesel vs CNG

The Maruti Vitara Brezza, now renamed Maruti Suzuki Brezza, is one of India’s most successful subcompact SUVs. Initially launched in 2016 with a diesel-only lineup, it quickly became a bestseller thanks to its efficient 1.3-litre diesel engine and practical design. Over the years, the model transitioned to a petrol and CNG offering, with the diesel variant officially discontinued. However, diesel versions are still widely available in the used car market and remain sought after by buyers who value their highway-friendly torque and fuel economy.

The current petrol-powered Brezza offers a balance of refinement, comfort, and city-friendly drivability, while CNG variants cater to those prioritising running cost savings. Transmission options now include both manual and automatic for the petrol version, with CNG offered exclusively with a manual gearbox.

In this comparison, we’ll look at one of the most decisive factors for Brezza buyers — fuel efficiency. We’ll explore the official ARAI mileage figures for all available fuel and transmission options and compare them with real-world performance. By the end, you’ll know which Brezza variant — petrol, diesel (in the used market), or CNG — offers the best blend of practicality and running costs for your needs. 

Maruti Vitara Brezza ARAI Mileage Figures

The official ARAI-certified mileage for the Vitara Brezza across all engine and transmission options is as follows: 

Maruti Vitara Brezza Real-World Mileage vs ARAI Mileage

While the ARAI mileage ratings for the Maruti Vitara Brezza provide a helpful benchmark, real-world figures tend to vary due to everyday driving conditions. Key factors influencing this difference include:

• Driving Style: Aggressive acceleration, frequent braking, and inconsistent speeds reduce mileage compared to smooth, steady driving.
• Traffic Flow: Congested, stop-and-go city driving consumes more fuel than uninterrupted highway cruising.
• Load & Air-Conditioner Usage: Extra passengers, heavy cargo, or running the AC continuously increase fuel usage.
• Road & Weather Conditions: Poor road surfaces, hilly terrain, and extreme temperatures can make the engine work harder, lowering efficiency.
• Maintenance: A well-maintained engine, clean air filters, and correct tyre pressure help achieve mileage closer to ARAI estimates.

In real-world use, the discontinued diesel Brezza often delivered around 21.7 km/l in city traffic and up to 25.3 km/l on highways, making it a favourite for long-distance drivers. The current petrol variants offer 25.45 km/l (manual) and 13.53 km/l (automatic) in the city and 21.97 km/l (manual) and 20.5 km/l (automatic) on the highway. The CNG model offers 22.1 km/kg in the city and 25.52 km/kg on the road. 

Maruti Vitara Brezza Fuel Efficiency Comparison: Petrol vs Diesel vs CNG

Over the years, the Maruti Vitara Brezza has offered diesel, petrol, and CNG powertrains. Each fuel type has its strengths—diesel being highway-friendly and torquey, petrol offering smooth performance and refinement, and CNG excelling in running cost savings and eco-friendliness. Buyers can choose between petrol and CNG in the current lineup, with the diesel variant now discontinued (but still available in the used market). 

Let’s see how each option fares regarding real-world city and highway efficiency.

Maruti Vitara Brezza City Fuel Efficiency Comparison

In urban stop-and-go traffic, the discontinued diesel Brezza delivered an impressive 21.7 km/l, making it a long-distance commuter’s favourite. The current petrol manual returns 25.45 km/l in city driving, while the automatic petrol version averages around 13.53 km/l. The CNG variant is the most cost-effective for city use, achieving 22.1 km/kg, making it ideal for high-mileage daily runs.

The main factors that lead to such variance are: 

• Fuel Characteristics: CNG performs better at lower speeds and in stop-and-go traffic, making it the most fuel-efficient option for city dwellers. Diesel engines offer high torque, reducing the strain during frequent starts, while petrol engines, though smoother and more responsive, use more fuel when asked to accelerate repeatedly.
• Engine Calibration: The CNG variant is tuned to run in an economy-focused mode, which keeps revs lower and prevents unnecessary fuel burn during crawling traffic. Diesel engines are calibrated for torque delivery, helping them handle city roads without straining much. Petrol engines, however, focus more on responsive acceleration, which comes at the expense of efficiency in crowded conditions.
• Traffic Conditions: In stop-and-go situations, petrol cars consume extra fuel for every burst of acceleration. CNG cars, conversely, run more steadily and maintain efficiency, while diesel cars perform better than petrol in handling such conditions but are still less cost-efficient compared to CNG.
• Idle Efficiency: CNG cars consume the least fuel during frequent halts, which is why they remain ideal for bumper-to-bumper traffic. Diesel cars fare moderately in this regard, while petrol cars typically idle at higher fuel consumption levels.
• Heat and Wear: Petrol engines can heat up faster in prolonged stop-go driving, leading to slight dips in fuel efficiency. Diesel cars maintain consistent performance but may face challenges with long idling, which affects DPF systems. CNG cars maintain a more uniform running temperature, which helps preserve their efficiency even in heavy traffic.

Maruti Vitara Brezza Highway Fuel Efficiency Comparison

The diesel Brezza can achieve a fuel efficiency of up to 25.3 km/l on open highways, offering an excellent range for road trips. The petrol manual achieves 21.97 km/l, with the automatic slightly lower at 20.5 km/l. The CNG variant maintains strong efficiency on longer runs, averaging 25.51 km/kg, coming close to its ARAI-rated figures.

The main factors for the differences are:

• Cruising Efficiency: Diesel engines work at lower RPMs and deliver the best mileage when maintaining highway speeds, making them ideal for long-distance travel. Petrol engines are also efficient at steady speeds, but not as economical as their diesel counterparts. CNG cars still provide lower costs per kilometre, though they can feel strained during rapid acceleration.
• Load and AC Usage: When carrying passengers and luggage at full capacity with the AC running, efficiency drops across all fuel types. Diesel cars handle the extra load best because of their torque-heavy performance. Petrol cars manage moderately well, while CNG variants are the most affected, showing noticeable mileage drops when fully loaded on highways.
• Driving Habits: Both petrol and diesel variants respond well to smooth acceleration and consistent speed, maximising mileage. Diesel cars, however, benefit the most from this style of driving due to their torque reserves. Though cost-effective, CNG cars are more sensitive to aggressive acceleration and braking, reducing their highway efficiency.
• Terrain and Altitude: On hilly or mountainous terrain, diesel cars outperform their counterparts due to their strong torque delivery. Petrol cars also manage gradients efficiently, whereas CNG cars often struggle on steep slopes, resulting in higher fuel consumption compared to flat highways.
• Fuel Availability: Petrol and diesel are widely available across highways, making them convenient for long journeys. CNG requires careful planning, as stations are not always accessible along highways, affecting efficiency and travel ease.

Maruti Vitara Brezza Fuel Cost Comparison: Petrol vs Diesel vs CNG

Fuel expenses are one of the most significant deciding factors when choosing the correct variant of the Maruti Vitara Brezza. With petrol, diesel, and CNG options, each balances efficiency, performance, and running costs. 

By looking at a typical monthly driving distance of around 1,500 km, we can better understand which option proves most economical in the long run, while still fitting different driving needs and preferences.

Fuel costs are approximated using an average petrol price of ₹100/litre, an average diesel price of ₹92/litre, and a CNG price of ₹70/kg. Actual fuel costs will vary depending on region and fuel price fluctuations. The CNG variant has lower running costs and more long-term savings, especially for high-mileage drivers.

Maruti Vitara Brezza Mileage vs Competitors

Comparing the Maruti Vitara’s mileage with some of its closest rivals provides insight into its fuel efficiency. Here’s a look at official mileage figures for petrol, diesel and CNG variants (wherever applicable):

The Maruti Vitara Brezza stands out in its segment with a strong balance of petrol, diesel, and CNG efficiency. Unlike many of its rivals that miss out on factory-fitted CNG, the Brezza offers an impressive 25.51 km/kg, making it one of the most economical options for cost-conscious buyers. At the same time, its diesel variant continues to deliver segment-leading mileage at 24.3 km/l.

Summary

In short, each fuel option of the Maruti Vitara Brezza has its advantages. CNG is best for low running costs, budget buyers, and those with high daily usage. Petrol is best for convenience and performance, for those who drive on mixed terrain or live in areas with limited CNG availability. Diesel, although discontinued, is available in the used market and is best for torque and long-distance efficiency.

So, the choice depends on your priorities – daily savings, performance balance or long-distance capability.

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