Even though the Kia Seltos and Renault Duster are mid-size SUVs, the approaches towards performance and fuel economy of the two brands are quite distinct. The current version of the Seltos comes with a naturally aspirated petrol engine, a turbo petrol engine, and a diesel engine in its bonnet, unlike the Duster, which currently comes with a turbo-petrol and hybrid powertrains engines. Nonetheless, according to the figures mentioned, the petrol version of the Duster is better than the Seltos in terms of mileage rating, as the 1-litre manual petrol engine of the Duster achieves a fuel economy of 19.41 km/l, compared to the figures for the Seltos, where the turbo DCT engine rates at around 17.5 km/l.
Real-world testing tells a different story. In the most useful like-for-like automatic comparison, the Seltos Turbo DCT returns noticeably better combined mileage than the Duster 1.3 Turbo DCT. The Seltos also offers a diesel engine, giving high-mileage buyers an option that the current Duster cannot match. So, the official mileage winner and the real-world running-cost winner are not necessarily the same SUV.
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Kia Seltos vs Renault Duster Specs
Kia Seltos features 3 versions of 1.5-litre engines, namely, a naturally aspirated petrol engine producing power of 115 hp and torque of 144 Nm available with a 6-speed manual or CVT, and a turbo petrol engine of 160 hp producing torque of 253 Nm and working with an iMT or a 7-speed DCT. The third option is the diesel engine of 1.5 litres that has a power output of 116 hp and torque output of 250 Nm, along with a manual and a torque converter option.
The new Renault Duster uses two turbo-petrol engines. The entry-level 1.0-litre TCe produces 100hp and 166Nm and comes with a 6-speed manual. The more powerful 1.3-litre turbo produces 163hp and 280Nm and is available with either a 6-speed manual or 6-speed DCT. All versions are front-wheel drive.
| Specification | Kia Seltos | Renault Duster |
| Base petrol engine | 1.5L NA petrol | 1.0L turbo-petrol |
| Base petrol output | 115hp / 144Nm | 100hp / 166Nm |
| Turbo petrol | 1.5L, 160hp / 253Nm | 1.3L, 163hp / 280Nm |
| Diesel | 1.5L, 116hp / 250Nm | Not available |
| Transmission | 6MT / CVT / 6-speed iMT / 7DCT / 6MT / 6AT | 6MT / 6DCT |
| Drive layout | FWD | FWD |
| Fuel tank | 47L / 50L depending on engine | 50L |
In terms of performance, the Duster 1.3 has an edge over the Seltos Turbo mainly due to its higher torque. Nevertheless, it should be noted that the latter provides a wider choice of petrol and diesel engines.
Also Read: Maruti Grand Vitara vs Kia Seltos: Real World Mileage Comparison
Kia Seltos vs Renault Duster ARAI Mileage Figures
The Seltos naturally aspirated petrol manual and CVT are both rated at 16.5 km/l. The turbo iMT claims 15.6 km/l, while the Turbo DCT improves to 17.5 km/l. The diesel manual remains the most efficient Seltos on paper at 19.4 km/l, followed by the diesel automatic at 17.8 km/l.
With respect to official petrol figures, the Duster performs better. Its 1.0 turbo manual scores 19.41 km/l, while the 1.3 turbo manual comes in at 17.75 km/l notably, the 1.3 DCT improves the score again to 18.45 km/l.
| Car | Engine & Transmission | Fuel Type | ARAI Mileage |
| Kia Seltos | 1.5 petrol MT | Petrol | 16.5 km/l |
| Kia Seltos | 1.5 petrol CVT | Petrol | 16.5 km/l |
| Kia Seltos | 1.5 turbo iMT | Petrol | 15.6 km/l |
| Kia Seltos | 1.5 turbo DCT | Petrol | 17.5 km/l |
| Kia Seltos | 1.5 diesel MT | Diesel | 19.4 km/l |
| Kia Seltos | 1.5 diesel AT | Diesel | 17.8 km/l |
| Renault Duster | 1.0 turbo MT | Petrol | 19.41 km/l |
| Renault Duster | 1.3 turbo MT | Petrol | 17.75 km/l |
| Renault Duster | 1.3 turbo DCT | Petrol | 18.45 km/l |
While the Duster has the edge in terms of official petrol economy, this does not reflect real-world driving conditions.
Kia Seltos vs Renault Duster Real-World Fuel Efficiency
The cleanest direct comparison is between the turbo-petrol automatics. The Seltos Turbo DCT has returned around 9.27 km/l in city driving and 14.76 km/l on highways, giving a simple combined reference of approximately 12.02 km/l.
The Duster 1.3 Turbo DCT registered a combined mileage of around 10.47km/l in tests while showing highway mileage of 13.47km/l and the city mileage of 7.47km/l; hence, it is advisable to use the combined mileage rather than forcing the city figure into the comparison.
| Seltos Turbo DCT | Duster 1.3 DCT | |
| Power | 160hp | 163hp |
| Torque | 253Nm | 280Nm |
| ARAI mileage | 17.5 km/l | 18.45 km/l |
| Real-world combined | ~12.02 km/l | ~10.47 km/l |
| Highway | 14.76 km/l | 13.47 km/l |
| Fuel tank | 50L | 50L |
When comparing the two cars, one of the most exciting discoveries was made. The Duster is ahead in terms of official fuel consumption, but the Seltos proved to be more efficient in practice.
Also Read: Comparison: Renault Duster vs Mahindra Thar Roxx
Why Does the Seltos Beat the Duster in Real-World Automatic Mileage?
The Duster’s 1.3-litre turbo is a strong engine, producing 280Nm and delivering quick acceleration, but that performance comes with a fuel-consumption penalty in urban conditions. Real-world testing shows a substantial drop from its official 18.45 km/l figure to roughly 10 km/l overall.
The Seltos Turbo DCT is not that fuel-efficient on city roads either, but it does gather pace better on highways. With its 14.76 km/l highway mileage, where the Seltos manages 14.76 km/l to the Duster’s 13.47 km/l., the Seltos leaves the Duster behind when the two cars’ total efficiency ratings are compared. The Seltos features a 7-speed DCT gearbox as compared to the Duster’s 6-speed variant, thus gaining an advantage over the Duster when driving at highway speeds.
Both SUVs can deliver strong performance, but neither should be bought expecting their ARAI numbers in heavy city traffic. The Seltos simply manages the real-world trade-off better in current testing.
What About the Renault Duster 1.0 Turbo?
With the best petrol rating in this comparison at 19.41 km/l, the Duster 1.0 manual has differing real-world results. One test conducted under controlled conditions indicated that it returned only 8.9 km/l in city driving and 14.5 km/l on highways, resulting in an overall figure of around 11.7 km/l.
Another test was more favourable, returning around 10.42 km/l in the city and 16.85 km/l on highways, with an overall figure around 12.16 km/l. Because these numbers differ significantly, it is more sensible to think of the Duster 1.0 as roughly an 11–12 km/l mixed-use petrol SUV rather than treating one figure as absolute.
This still makes the Duster the most efficient of the two, but the real-world difference between the 1.0 and the more powerful 1.3 is smaller than what the ARAI numbers indicate.
Also Read: Kia Seltos vs Toyota Hyryder Real-World Mileage Comparison
Kia Seltos 1.5 CVT Real-World Mileage
The naturally aspirated Seltos CVT is worth considering for buyers who do not need the performance of the Turbo DCT. It has returned around 10.31 km/l in the city and 14.22 km/l on highways, giving a combined reference of approximately 12.27 km/l.
This statistic is in fact marginally superior to the 12.02 km/l achieved by the Seltos Turbo DCT and is well deserved compared with the Duster 1.3 DCT’s 10.47 km/l reference.
For buyers who mostly want a smooth automatic for everyday city and highway use, the Seltos CVT therefore offers a strong compromise between convenience, performance and fuel economy.
Kia Seltos vs Renault Duster Fuel Cost Comparison
As part of this comparison, we have taken the driving distance every month, which is taken to be 1,500 km thereby coming up to a total distance of 18,000 km in a year. Currently, petrol price is being taken as ₹102.12 per litre based on data for New Delhi as of September 2026.
| Seltos Turbo DCT | Duster 1.3 DCT | |
| Reference Mileage | 12.02 km/l | 10.47 km/l |
| Monthly Fuel Use | ~124.8L | ~143.3L |
| Monthly Fuel Cost | ~₹12,744 | ~₹14,634 |
| Annual Fuel Cost | ~₹1.53 lakh | ~₹1.76 lakh |
| 5-Year Fuel Cost | ~₹7.65 lakh | ~₹8.78 lakh |
The implementation of these parameters in the comparison shows that the Seltos Turbo DCT saves around ₹1,890 per month in comparison to the Duster 1.3 DCT. Over a year, this figure rises to ₹22,680, which would equal about ₹1.13 lakh over five years.
For buyers covering higher annual mileage, that difference becomes difficult to ignore. The Duster may have the stronger certified figure, but the Seltos is cheaper to fuel based on the available current automatic tests.
Also Read: Renault Duster Alternatives: Competitors of Renault Duster
Renault Duster Manual Running Costs
Going by the Duster’s reference values for fuel consumption, we have found that the 1.0 turbo manual that provides fuel efficiency of around 10.98 km/l would cost around ₹13,949 per month in fuel for 1,500 km. This translates to approximately ₹1.67 lakh per annum and ₹8.37 lakh over five years.
The 1.3 turbo manual, at a tested combined figure around 10.64 km/l, costs approximately ₹14,399 per month, ₹1.73 lakh annually and around ₹8.64 lakh over five years.
According to the analysis, the 1.0 manual is the ideal Duster for petrol-conscious customers. It is the 1.3 variant that has to be picked primarily for its performance rather than for fuel economy.
Kia Seltos Diesel Running Cost
The Seltos diesel changes the comparison completely because the Duster has no diesel equivalent. The diesel manual has returned around 15.3 km/l in city driving and 19.1 km/l on highways, giving a combined real-world figure close to 17.2 km/l.
Calculating the diesel cost of the Seltos variants at a price of around ₹95.20 per litre over 1,500 km of driving gives an amount close to ₹8,300 per month. This adds up to approximately ₹99,600 annually or ₹4.98 lakh over a period of five years.
Compared with the Duster 1.3 DCT, the diesel Seltos can save roughly ₹6,300 per month in fuel at the same time. Even compared with the Duster 1.0 manual, the difference remains more than ₹5,500 per month.
For high-mileage drivers, the diesel option is indeed the best economic alternative in this analysis.
What About the Upcoming Duster Strong Hybrid?
Renault is expected to introduce a 1.8-litre strong-hybrid Duster around Diwali 2026. That version is likely to become the most fuel-efficient Duster and could significantly improve city running costs.
The officially certified mileage and cost of the India-spec hybrid are yet to be publicised. Those statistics may not be taking the hybrid into account at this moment, and this is a key consideration in this price comparison.
For now, buyers choosing a Duster are comparing petrol engines only, while Seltos buyers can choose between petrol and diesel.
Also Read: Hyundai Creta vs Kia Seltos Real World Mileage Comparison
Kia Seltos vs Renault Duster Price
The price of the Kia Seltos goes from ₹10.99 lakh ex-showroom. Depending on the variant, the prices can exceed ₹21.57 lakh. In comparison, the entry-level Duster is a bit more affordable – it is priced at ₹10.49 lakh, while the full price reaches ₹18.49 lakh for the top-end 1.3 DCT option.
| Model | Variant / Powertrain | Approx. Ex-showroom Price |
| Kia Seltos | HTE Petrol MT | ₹10.99 lakh |
| Kia Seltos | HTE(O) Petrol CVT | ₹13.39 lakh |
| Kia Seltos | HTE Diesel MT | ₹12.59 lakh |
| Kia Seltos | HTE(O) Diesel AT | ₹14.99 lakh |
| Kia Seltos | HTK(O) Turbo DCT | ₹16.29 lakh |
| Renault Duster | Authentic 1.0 MT | ₹10.49 lakh |
| Renault Duster | Evolution 1.0 MT | ₹11.69 lakh |
| Renault Duster | Evolution 1.3 DCT | ₹14.49 lakh |
| Renault Duster | Techno+ 1.3 DCT | ₹16.69 lakh |
| Renault Duster | Iconic 1.3 DCT | ₹18.49 lakh |
The Renault Duster is well-priced, especially with its 1.3 turbo offerings. The Kia Seltos has a significantly higher price at the high end, but gives buyers more choices when it comes to specifications, transmissions, and diesel engines.
For buyers focused only on purchase price and strong petrol performance, the Duster makes a compelling case. For those considering total running cost over several years, the Seltos diesel becomes much harder to overlook.
Summary
When it comes to petrol efficiency, the Renault Duster beats the Seltos by a great margin. The 1.0 turbo manual Duster gives 19.41 km/l, while the 1.3 DCT model gives 18.45 km/l. The near competitor, the Seltos Turbo DCT, boasts a mere 17.5 km/l in fuel efficiency.
Real-world testing reverses that result. The Kia Seltos Turbo DCT returns around 12.02 km/l combined, compared with approximately 10.47 km/l for the Duster 1.3 DCT. The Seltos CVT also performs well at around 12.27 km/l combined.
In conclusion, it is advisable to go for the Renault Duster if good claimed petrol efficiency, a low entry price, and the latest 1.3 turbo petrol engine are on your checklist. If real-world automatic mileage, more combinations of engines and transmissions, and running costs of diesel engines are what you are looking for, then you can choose the Kia Seltos.
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FAQs about Kia Seltos and Renault Duster Mileage
Q. Which has better mileage, Kia Seltos or Renault Duster?
The Duster has better official petrol mileage, but the Seltos performs better in the strongest current real-world automatic comparison.
Q. What is the real-world mileage of the Kia Seltos Turbo DCT?
The Seltos Turbo DCT has returned around 9.27 km/l in city driving and 14.76 km/l on highways, giving a combined reference of approximately 12.02 km/l.
Q. What is the real-world mileage of the Renault Duster 1.3 DCT?
Current testing places the Duster 1.3 DCT at roughly 10.47 km/l overall, with highway mileage around 13.47 km/l.
Q. Which is cheaper to run, the Seltos Turbo DCT or the Duster 1.3 DCT?
Using the current real-world references, the Seltos Turbo DCT costs roughly ₹1,890 less per month in petrol at 1,500km of monthly running.
Q. Is the Seltos diesel more economical than the Duster petrol?
Yes. The Seltos diesel manual returns around 17.2 km/l in real-world driving and also benefits from the lower price of diesel, making it significantly cheaper to run.
Q. Is the Renault Duster hybrid available now?
No. A strong-hybrid version is expected later in 2026, but its final price and certified India mileage have not yet been announced.
