Are you heading to Kia Sonet? It can be a great choice indeed with its supreme features and overall service. With the bold design, digital cluster, ADAS safety features, and others, you can simply enjoy a hassle-free riding experience. Several petrol and diesel variants like iMT, DCT, Automatics, etc, cater to your several riding requirements on the road.
But before you join the Kia Sonet community, you must know the details about Sonet service cost, maintenance cost, fuel requirements over the years, insurance, and many other such things. Here you can find the details about all that you must know. Let’s explore what the numbers you should keep in mind for Sonet are.
Kia Sonet: Fuel Type and Mileage Overview
Check the table below to know the Kia Sonet’s fuel type along with mileage details.
| Fuel | Transmission | ARAI 2025 (kmpl) | City Mileage (kmpl) | Highway Mileage (kmpl) |
| Petrol | Manual | 18.4 | 16-17 | 20-22 |
| Petrol | iMT | 18.4 | 16-17 | 20-22 |
| Petrol | DCT | 18.4 | 16-17 | 20-22 |
| Diesel | iMT | 24.1 | 20-23 | 24-25 |
| Diesel | Automatic | 19 | 17-19 | 21-23 |
| Diesel | Manual | 24.1 | 20-23 | 25-25 |
Sonet Fuel Cost per Km (Based on 5-Year Usage)
If you are going to buy the Kia Sonet in 2025, you must know a few factors, like the Sonet’s fuel cost over time. Here, you can get a complete idea about that.
Assumptions for fuel cost calculation
Let’s consider that the annual travelling distance is 12,000 km, and the current petrol price is ₹100 per litre, and the diesel price is ₹90 per litre. Based on the distance, here is the table with information for fuel cost.
| Fuel type | Transmission | Mileage (km/l) | Annual fuel use in litres | Annual cost (INR) |
| Petrol | Manual | 18.4 | 652 | 65200 |
| Petrol | iMT | 18.4 | 652 | 65200 |
| Petrol | DCT | 18.4 | 652 | 65200 |
| Diesel | iMT | 24.1 | 498 | 44820 |
| Diesel | Automatic | 19 | 632 | 56880 |
| Diesel | Manual | 24.1 | 498 | 44820 |
Note:
Annual fuel usage is: Total distance covered / mileage.
Annual cost for fuel is: usage * fuel price.
Annual and 5-Year fuel cost estimate
Let’s consider that the fuel price for petrol is ₹100(considering pan-India petrol rates in metro cities), and the diesel rate is ₹90(considering pan-India diesel rates in metro cities).
Also, consider that the petrol variants’ real mileage is 16.5 kmpl, and the diesel variants’ real mileage is 17.4 kmpl.
| Variants of Kia Sonet | Mileage (km/L) | Cost /km (INR) | Annual fuel cost (INR) | 5-year fuel cost (INR) |
| Petrol Manual | 16.5 | 100/16.5= ₹6.06 | 6.06 * 12000 = 72,720 | ~3,63,600 |
| Petrol iMT | 16.5 | 100/16.5= ₹6.06 | 6.06 * 12000 = 72,720 | ~3,63,600 |
| Petrol DCT | 16.5 | 100/16.5= ₹6.06 | 6.06 * 12000 = 72,720 | ~3,63,600 |
| Diesel iMT | 17.4 | 90/17.4= ₹5.17 | 5.17 * 12000 = 62,040 | ~3,10,200 |
| Diesel Automatic | 17.4 | 90/17.4= ₹5.17 | 5.17 * 12000 = 62,040 | ~3,10,200 |
| Diesel Manual | 17.4 | 90/17.4= ₹5.17 | 5.17 * 12000 = 62,040 | ~3,10,200 |
Sonet Service and Maintenance Costs Over 5 Years

Sonet service cost is one of the most important factors because you always need to keep your Sonet in peak health. Yearly, one servicing with parts repairing or exchanging is mandatory for the long-term of your car. Check the overview of the Sonet service cost and relevance details.
Regular service intervals and inclusions
| Year | Engine oil and oil filter | Air filter | Brake fluid | Coolant | Wheel alignment |
| 1st year (0-10000 km) | Replace | Inspect; replace only if needed | Check; top up if required | Check level | Inspect; rotate tyres |
| 2nd year (10000-20000 km) | Replace | Replace | Check and top up | – | Wheel alignment, tyre rotate |
| 3rd year (20000-30000 km) | Replace | Inspect | Replace | – | Wheel alignment, tyre rotate |
| 4th year (30000-40000 km) | Replace | Replace | Check; top up if required | Check levels | Wheel alignment, tyre rotate |
| 5th year (40000-50000 km) | Replace | Inspect; replace it if needed | Check and top up | – | Wheel alignment, tyre rotate |
Note:
- You should follow a regular interval to change the engine. Usually, it can be done after every 10,000 km.
- Follow the only recommended rule by the manufacturer for the air filter replacements.
- Brake fluid can be changed every two years.
- You should check the engine coolant every year. If everything is right, then change every three years.
- Also, wheel alignment can be done annually.
Estimated Sonet service costs by year
Check the table below to know the estimated Sonet service cost over the years.
| Year | Interval of service | Routine service cost | Additional part replacements | Estimated total cost in INR |
| 1st | 0 to 10,000 km | Free | Engine oil, oil filter, basic inspection | For petrol variants: ₹1564 For diesel variants: ₹2215 |
| 2nd | 10,000 to 20,000 km | ₹3500 | Engine oil, filter, air and cabin filter, labour | For petrol variants: ₹3704 For diesel variants: ₹4355 |
| 3rd | 20,000 to 30,000 km | ₹3500 | Engine oil, filter, brake fluid, coolant, labour | For petrol variants: ₹3634 For diesel variants: ₹4355 |
| 4th | 30,000 to 40,000 km | ₹4000 | Engine oil, filter, air and cabin filter, fuel filter, labour | For petrol variants: ₹4079 For diesel variants: ₹4355 |
| 5th | 40,000 to 50,000 km | ₹4000 | Engine oil, filter, cabin filter, coolant(if needed), labour | For petrol variants: ₹4079 For diesel variants: ₹4355 |
Over a 5-year interval, a total maintenance routine check-up can cost up to ₹20,000 for diesel variants and for petrol variants, it can be around ₹18,000.
Insurance and Other Recurring Expenses
Now, check Kia Sonet’s estimated expenses for insurance and other relevant factors.
| Type of Expenses | Estimated Annual Cost (₹) | Notes for You |
| Comprehensive insurance | ₹10,000 – ₹15,000 | It’s mandatory for any car owner. |
| Personal accident cover | ₹300 – ₹600 (or it can also come with comprehensive insurance) | — |
| Pollution check | ₹100 – ₹300 | Needed annually |
| Wheel alignment and balance | ₹1,200 – ₹1,500 | Needed annually |
| Car wash and cleaning | ₹1,500 – ₹3,000 | Can be done monthly or when needed |
| Minor fixes | ₹1,000 – ₹2,000 | Can include filters, small parts, or any such minor issues |
The total insurance cost for the Kia Sonet can be around ₹15,000(+/- 4000 for extra part changes or maintenance). Over 5 years, it can go up to ₹75,000 to ₹80,000.
Total Ownership Cost of Kia Sonet (5-Year Estimate)
The table below covers the total ownership cost of the Kia Sonet with an estimated calculation for 5 years.
| Component | Petrol Manual (₹) | Petrol iMT (₹) | Petrol DCT (₹) | Diesel iMT (₹) | Diesel Automatic (₹) | Diesel Manual (₹) |
| Fuel | ~3,63,600 | ~3,63,600 | ~3,63,600 | ~3,10,200 | ~3,10,200 | ~3,10,200 |
| Service and maintenance | ~20,000 | ~20,000 | ~20,000 | ~20,000 | ~20,000 | ~20,000 |
| Insurance | ~75,000 | ~75,000 | ~75,000 | ~75,000 | ~75,000 | ~75,000 |
| Miscellaneous | ~15,000 | ~15,000 | ~15,000 | ~15,000 | ~15,000 | ~15,000 |
| Total in 5 years | ~4,53,600 | ~4,53,600 | ~4,53,600 | ~4,00,200 | ~4,00,200 | ~4,00,200 |
| Average per year | ~90,720 | ~90,720 | ~90,720 | ~80,040 | ~80,040 | ~80,040 |
How to Reduce Your Sonet’s Running Cost
It may seem a bit higher for overall maintenance and the Sonet service cost. Here are a few tips which can reduce the total cost and keep your car’s health at an optimum stage for better performance.
- Do not use the car accelerator roughly. Use it with care.
- Always switch off your car engine when you need to wait for the traffic signal for more than 30 seconds.
- Check whether the recommended tyre pressure of 30-32 PSI is maintained or not.
- Regularly check the coolants, brake fluid, engine oil, etc, for hassle-free driving.
- Follow the 10,000 km service routine only at the Kia Sonet’s authorised centres.
- Choose good-quality fuel from trusted petrol or diesel stations to avoid major engine issues.
- Keep your Sonet as light as possible. Do not carry excess luggage.
Summary
In the previous year, more than 90,000 Kia Sonets were sold because of the quality performance and the benefits riders get. If you are also going towards the Sonet, you are making a great choice for your on-road experience. Check the complete details like Sonet service cost and other maintenance tips. It will help you to budget your finances accordingly. Let’s make your journey smooth and better with Kia Sonet.
FAQs About Kia Sonet Running Cost
What is the real mileage of the Kia Sonet?
The real mileage for petrol variants is 16-17 kmpl. For diesel variants, it is 17-23 kmpl.
How much does Sonet servicing cost per year?
The Sonet service cost can vary from ₹3500 to ₹4000. It will depend on what kind of servicing you need or which parts should be replaced.
Is Sonet expensive to maintain long-term?
Sonet is a budget-friendly option for your long-term requirement. This vehicle offers smooth performance when you continue with regular servicing or maintenance.
Mention the fuel cost per km for the Sonet.
For petrol variants, fuel cost per km is ₹6.06. For diesel variants, it is ₹5.17.
Is Sonet better than Syros in terms of running costs?
Both Kia Sonet and Kia Syros are different based on their features and benefits. But Kia Sonet can be your good choice for daily usage to the office, home, travelling, or long drives.



