The India-market Baleno’s September 2026 claimed fuel-efficiency figures are 23.80 km/l for petrol manual, 24.77 km/l for petrol AGS and 33.61 km/kg for S-CNG manual. These are manufacturer figures under certified test conditions—not a promise of what you will get on the road. For the new Z12E model, the sources available here do not establish a named, independently published real-world mileage result. Earlier Baleno estimates and owner logs can offer context, but they should not be treated as a test or forecast for the new car.
What mileage does the current Baleno claim?
Maruti Suzuki’s September 2026 announcement for the “Stunning New Baleno” identifies a new Z12E engine, offered with a five-speed manual or Auto Gear Shift (AGS), with idle start-stop and Dual VVT. It gives these certified efficiency figures:
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| Fuel and transmission | Claimed figure | What the figure represents |
|---|---|---|
| Petrol manual | 23.80 km/l | Manufacturer-certified figure, not an observed road result. |
| Petrol AGS | 24.77 km/l | Manufacturer-certified figure, not an observed road result. |
| S-CNG manual | 33.61 km/kg | Manufacturer-certified figure; the unit is kilograms of CNG, not litres of petrol. |
Maruti says the petrol manual and AGS figures improve by 6.4% and 7.9%, respectively, over the predecessor, and that the S-CNG manual figure improves by 9.8%. These are the manufacturer’s comparisons, not independent measurements. Maruti Suzuki’s September 2026 announcement gives its specifications and claims.
Autocar India, on a page last updated 25 September 2026, lists the same figures for petrol and CNG manual variants and also lists 34.47 km/kg for a CNG AMT variant. That AMT figure is attributable to Autocar’s listing; Maruti’s cited announcement specifies the S-CNG manual figure. Autocar notes that real-world results vary. Petrol km/l and CNG km/kg describe different fuels and should not be compared as if the units were equivalent.
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What real-world Baleno mileage can you expect?
For the September 2026 Z12E Baleno, a representative real-world city, highway or mixed-route figure is not established by the sources cited here. The available road-use numbers concern earlier cars, estimates or individual owner experiences, not a controlled test of the new model.
Earlier-model estimates
V3Cars’ table for the 2022–2026 Baleno lists real-world figures of 20 km/l for petrol manual and 21 km/l for petrol automatic. Its real-world field for the 1.2 CNG manual is blank. These are secondary-source estimates for earlier model years; they are not Z12E test results.
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Owner-reported city and mixed use
In owner discussions on Team-BHP, one Baleno owner reported 16–17.5 km/l on a regular mixed commute, with consumption dropping in prolonged bumper-to-bumper traffic. Another described an AC-on, congested, city-only run averaging 18–20 km/h: a tank-fill calculation gave 430 km over 33 litres, or about 13 km/l, while the dashboard showed 16.2 km/l. These are self-reported observations for earlier-generation cars, not controlled tests or predictions for every owner. The Team-BHP mileage discussion includes the owner accounts.
Route length and traffic, average speed, driving style, air-conditioning use, load, vehicle condition and the way consumption is measured can all affect a result. A number without its generation, conditions and measurement method is easy to misread. In particular, a dashboard reading and a full-tank calculation are not necessarily the same measurement.
Why can city mileage differ from highway or mixed mileage?
Stop-start driving and prolonged congestion can mean more time spent accelerating from rest and idling, while a steady pace on an open road avoids some of those interruptions. The owner accounts above illustrate how slow city traffic can coincide with lower reported consumption, but they do not establish a fixed city-versus-highway difference for every Baleno.
- Congestion and average speed: bumper-to-bumper traffic and a low average speed can make a city-only trip very different from an open-road run.
- Driving pattern: rapid starts and unnecessary braking or stopping work against efficient progress.
- Air conditioning and load: both are part of the conditions under which an individual result is obtained; a trip with AC on and a heavy load is not directly comparable to a lighter run.
- Vehicle and measurement: condition and method matter. A single dashboard figure or one tank log should not be treated as a universal benchmark.
How to measure your own Baleno’s fuel economy
A consistent full-tank-to-full-tank log across multiple refills gives a more useful picture of your car than comparing one dashboard reading with someone else’s trip. Keep the method and units consistent, and record enough context to explain differences.
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- Fill the tank, then record the odometer reading and the amount of fuel added.
- Drive normally and note relevant conditions, such as route mix, congestion, typical average speed, AC use and passenger or cargo load.
- At the next fill, use the same full-tank method and record the distance travelled and fuel added.
- For petrol, divide kilometres travelled by litres added to calculate km/l. For CNG, use kilograms dispensed and report km/kg instead.
- Repeat over several fills before drawing conclusions; keep dashboard readings separate from tank-fill calculations.
The Team-BHP example in which a tank-fill calculation was about 13 km/l while the dashboard showed 16.2 km/l shows why the measurement method belongs alongside the number.
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Maruti’s fuel-efficiency guidance supports the habits below as ways to avoid wasting fuel. It does not promise a specific percentage improvement for any one car.
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- Check tyre pressure regularly. Use the specification on the vehicle label or in the owner’s manual. Maruti says underinflated tyres increase rolling resistance and waste fuel. A gauge helps you check pressure; the gauge itself does not improve mileage. Maruti Suzuki’s mileage guidance explains the recommendation.
- Accelerate smoothly and maintain a steady speed when conditions permit. Maruti advises avoiding rapid starts and unnecessary deceleration and stopping. Do not sacrifice safe, appropriate driving for a fuel-economy target.
- Avoid excessive idling. Follow the car’s instructions and never switch off the engine where doing so would be unsafe or inappropriate. The September 2026 release identifies idle start-stop as a feature of the new engine; its presence does not establish a real-world mileage figure.
- Remove cargo you do not need. Maruti says carrying more weight consumes more fuel.
- Maintain the air cleaner and follow the scheduled service plan. Maruti’s guidance calls for a clean air cleaner. Its genuine-parts catalog lists Baleno air filters, oil filters and spark plugs. Replacing a sound component outside the service schedule is not established as a guaranteed mileage upgrade.
The cited sources do not substantiate fuel additives, premium petrol, unusually high tyre pressure, neutral coasting, unsafe low-speed driving or aftermarket engine modifications as proven Baleno mileage fixes.
How to compare Baleno mileage figures fairly
Before comparing a listing, owner report or dashboard display with your own result, check that the figures refer to the same kind of car and measurement. A certified claim, a secondary estimate and a single owner’s log answer different questions.
| Figure type | Example in the available sources | How to interpret it |
|---|---|---|
| Manufacturer-certified claim | September 2026 Z12E petrol and S-CNG figures from Maruti Suzuki | Controlled-condition claimed efficiency; not a real-world guarantee. |
| Secondary-source estimate | V3Cars’ 2022–2026 petrol figures | An estimate for earlier model years, not a result for the September 2026 Z12E. |
| Owner log | Team-BHP mixed-commute and city-only accounts from earlier cars | Individual observations tied to their routes and conditions, not a controlled comparison. |
| Dashboard display | One owner’s reported 16.2 km/l display reading | A display reading that differed from that owner’s tank-fill calculation; state it as such. |
| Tank-fill calculation | One owner’s 430 km over 33 litres, about 13 km/l | An individual calculation for an AC-on, congested city run averaging 18–20 km/h, not a model-wide result. |
Transmission and fuel type also matter: the claimed petrol manual and AGS figures are separate, while CNG results use km/kg. Do not carry previous-generation real-world estimates forward to the new Z12E car without evidence.
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