How to Increase Mileage of Celerio?

If there’s one car that wears the ‘fuel saver’ badge with pride, it’s the Maruti Suzuki Celerio. Known for being India’s most fuel-efficient hatchback, the Celerio backs up its reputation with consistently high mileage numbers, especially with its DualJet engine and CNG tech. 

However, real-world results don’t always match the lab-tested figures. Factors like traffic, terrain, and even how you drive can cause your Celerio mileage to drop well below expectations. So, how do you squeeze every last kilometre from your fuel tank or CNG cylinder? Let’s break it down variant by variant and show you exactly how to get better mileage from your petrol or CNG Celerio.

ARAI-Certified Celerio Mileage

Here is a quick look at the official ARAI-rated mileage figures across all current-gen Celerio variants:

These figures were recorded in optimal test conditions, with no traffic and AC, or harsh acceleration. In the real world, you will not achieve as much, but with the correct habits and checks, you might be able to come closer to these numbers.

Celerio City Mileage

Most Celerio owners in India drive every day in their city, which includes short distances, bumper-to-bumper traffic, and heavy gear shifting. Here is what the real-life Celerio mileage is like in the city:

• Petrol Manual: 17–20 kmpl
• Petrol AMT: 18–21 kmpl 
• Celerio CNG: 26–29 km/kg

These estimates assume moderate AC use, normal traffic and conservative driving. But mileage will drop quickly if the car is driven hard or poorly maintained.

Factors That Impact Celerio City Mileage

1. Traffic Conditions & Frequent Stops

In cities like Mumbai or Bengaluru, the start-stop nature of traffic makes it hard to maintain a constant momentum. This hits your Celerio mileage, especially in petrol models where the engine idles more often.

2. Aggressive Throttle and Late Gear Shifts

The DualJet engine is tuned for economy, not performance. Jerky acceleration, riding the clutch (manual), or letting revs climb too high before shifting causes fuel wastage.

3. Overuse of AC in Low-Speed Zones

Even though the Celerio’s AC is efficient, running it constantly at low speeds or idle puts extra load on the engine or burns more CNG in the bi-fuel version.

4. Under-Inflated Tyres

Tyres that aren’t at optimal PSI levels increase rolling resistance. This is especially noticeable in smaller hatchbacks like the Celerio, which rely on low drag for fuel economy.

5. Skipped Maintenance

Old spark plugs, dirty air filters, or missed oil changes can drag your mileage down. In CNG models, missing valve clearance checks can also lead to power loss and higher fuel use.

Improving Celerio City Mileage

Want to make every litre or KG of fuel in your Celerio go further? The following are some tips specific to city driving: 

1. Use Idle Start/Stop Feature Wisely

The new-gen Celerio is equipped with the Smart Idle Start/Stop system (in select variants). If your version has one, ensure that it is on to avoid burning fuel at the signals.

2. Shift Early and Stay in Lower RPMs

In city driving, shift up to higher gears before 2,000 RPM. The DualJet motor rewards balanced driving with great mileage as long as you can keep it in its efficiency band.

3. Don’t Ride the Clutch

In the case of manual variants, do not keep your foot on the clutch pedal without need. It makes the car less fuel-efficient and wears the clutch faster.

4. Smart Use of the AC

Use the AC in short bursts in low-speed conditions, or switch it off when parked. AC moderation is particularly useful to CNG users when crawling in traffic.

5. Stick to the Service Schedule

Always follow the official schedules of Maruti, particularly, cleaning of air filters, replacement of spark plugs and cleaning of fuel injectors. In the case of CNG variants, it is important to carry out regular valve adjustments.

Celerio Highway Mileage

Once you’re out on the highway, the Celerio really shows off its fuel-saving potential. Thanks to its lightweight build and peppy DualJet engine, the real-world mileage on long drives is quite impressive:

• Petrol Manual: 21–23 kmpl
• Petrol AMT: 22–24 kmpl 
• Celerio CNG: 30–32 km/kg

These figures are based on constant cruising at 80–90 kmph, adequate tyre pressure and low loads. Remember, overtaking or overloading can bring these figures down further.

Factors That Impact Celerio Highway Mileage

1. Driving Over 100 kmph

The 1.0L engine in the Celerio is not engineered to run at high speeds all the time. Take it above 100 kmph and the engine will start consuming more fuel to keep up.

2. Roof Rails or Extra Weight

During road trips, many owners put on roof carriers or overload the boot. That additional drag and weight impose additional load on the small motor, which hurts your Celerio mileage.

3. Low-Quality Fuel

Highway fuel stations, especially in remote areas, may not always offer top-grade petrol or CNG. Lower fuel quality affects combustion and efficiency.

4. Tyre Pressure & Alignment

Incorrect tyre pressure or misaligned wheels create unnecessary rolling resistance. This adds strain on the engine, especially at high speeds.

Improving Celerio Highway Mileage

Here’s how to make sure your highway trips deliver the mileage Maruti promised or as close to it as possible:

1. Maintain a Steady Speed

Cruise between 80–90 kmph for peak mileage. Sudden throttle inputs or frequent braking will pull down the average quickly, especially in the AMT.

2. Use Higher Gears

In the manual variant, shift to 5th gear early once you’re cruising. In the AMT, ease off the throttle gently to let it upshift quickly and avoid over-revving.

3. Ditch Roof Boxes or Unnecessary Luggage

Extra weight means more fuel burn. If you’re not using the roof carrier, remove it. Travel light for better efficiency, especially in the CNG variant.

4. Pre-Trip Tyre Check

Before hitting the highway, make sure all tyres are properly inflated and aligned. This one simple step can save you up to 1–2 kmpl over long distances.

Summary

If you’re looking to maximise your Celerio mileage, it’s all about the balance between smart driving and regular maintenance. The DualJet petrol motor and factory-fitted CNG kit are built for efficiency, but they need your help to deliver. Stick to light throttle usage in the city, shift early, avoid unnecessary AC use, and go steady on highways. 

Even small changes like switching the engine off at long signals or topping up from good fuel stations can save you a lot over time. And if you’re looking for a budget-friendly hatch that’s easy on fuel, explore a wide range of used Maruti Suzuki Celerio on CARS24, across petrol, AMT, and CNG variants, all verified and ready to buy.