The Kia Seltos diesel manual returns an ARAI-certified 19.4 kmpl — the highest figure anywhere in the 2026 lineup — while both petrol manual and iVT variants sit at 16.5 kmpl, based on ARAI test data first reported by Vahan Warta and confirmed across multiple outlets in April 2026.
This article breaks down kia seltos petrol mileage across every engine and gearbox combination — the naturally aspirated petrol, the turbo petrol, and the diesel — along with fuel tank capacity, ground clearance, and tyre size, since all three affect real running costs and are usually asked about together by buyers comparing this SUV.
Most mileage articles stop at the ARAI number and move on. This one adds real-world city and highway figures gathered from owner feedback and long-term test drives, plus the fuel tank and tyre-size details that determine how much you’ll actually spend to keep the Seltos running.
Petrol (1.5 NA) Mileage Test
The 1.5-litre naturally aspirated Smartstream petrol engine is where most Seltos buyers land. It produces around 113 to 115 PS and 144 Nm, paired with either a 6-speed manual or Kia’s iVT automatic. Both gearboxes return an identical kia seltos mileage petrol figure of 16.5 kmpl on the ARAI cycle — a rare case where choosing the automatic costs you nothing in claimed efficiency.
Real-world numbers tell a slightly different story. Owner-reported figures for the standard petrol generally land 2 to 3 kmpl below the ARAI number, which puts city driving around 10 to 12 km/l and steady highway cruising closer to 15 to 17 km/l. That gap is normal for any naturally aspirated petrol SUV in this weight class — the ARAI test doesn’t run the air conditioning, and Indian city traffic involves far more stop-start driving than the lab cycle accounts for.
Our take: the NA petrol iVT is the right call for buyers doing mostly city driving with occasional highway runs. It’s refined, doesn’t punish you for choosing the automatic, and the mileage penalty versus the manual is effectively zero — something you can’t say for most rivals in this segment.
Turbo Petrol (1.5 T-GDi) Mileage
The turbo petrol is the performance option, and its mileage numbers are counterintuitive. The 1.5-litre T-GDi makes 158 to 160 PS and 253 Nm, offered with a 6-speed iMT or a 7-speed DCT. The DCT actually returns better kia seltos mileage petrol than the iMT — 17.5 kmpl against 15.6 kmpl — because the dual-clutch box shifts earlier and keeps the turbo out of its thirstier upper rev range more consistently than a driver working a manual gearbox typically does.
That ARAI advantage doesn’t hold up under hard use. Driven aggressively, the turbo petrol’s city mileage can drop to 8 to 10 km/l, since the engine is built to reward throttle input rather than restrain it. Highway cruising at a steady pace closes that gap considerably, landing closer to 15 to 16 km/l.
Quick Note: If fuel economy matters more to you than acceleration, skip the turbo iMT specifically — its 15.6 kmpl ARAI figure is the lowest in the entire Seltos range, lower than even some rivals with more power.
Diesel (1.5 CRDi) Mileage Test
The 1.5-litre CRDi VGT diesel produces 114 to 116 PS and 250 Nm, and it remains the mileage leader by a clear margin. The manual variant delivers 19.4 kmpl on the ARAI cycle, while the 6-speed torque converter automatic returns 17.8 kmpl — a smaller gap between manual and automatic than most diesel SUVs in this class show.
Kia seltos diesel mileage in real-world driving tends to stay closer to its ARAI claim than either petrol engine does, typically landing in the 15 to 18 km/l band depending on load and driving style, with highway figures reaching 18 to 20 km/l on a light throttle. Diesel engines generally hold their efficiency better outside lab conditions because their torque delivery needs less throttle input to maintain speed, which is exactly the kind of driving Indian highways reward.
If you cover more than 15,000 km a year, mostly on highways, the diesel manual’s fuel savings will outpace the higher upfront cost of the engine within two to three years of ownership at current diesel prices.
City vs Highway Mileage Comparison Table
Here is how ARAI figures compare against realistic city and highway numbers across all five powertrain-gearbox combinations:
| Engine & Gearbox | ARAI Mileage | City (Real-World) | Highway (Real-World) |
|---|---|---|---|
| 1.5 Petrol MT / iVT | 16.5 kmpl | 10–12 km/l | 15–17 km/l |
| 1.5 Turbo Petrol iMT | 15.6 kmpl | 8–10 km/l | 15–16 km/l |
| 1.5 Turbo Petrol DCT | 17.5 kmpl | 9–11 km/l | 16–17 km/l |
| 1.5 Diesel MT | 19.4 kmpl | 13–15 km/l | 18–20 km/l |
| 1.5 Diesel AT | 17.8 kmpl | 12–14 km/l | 17–19 km/l |
The pattern across all five combinations is consistent: petrol variants lose the most ground to city traffic, diesel holds up best under load, and the DCT turbo closes part of the gap that the iMT turbo opens up. If your daily driving is 80 percent city, as is typical for buyers in Pune, Bengaluru, or Mumbai, the standard petrol iVT is usually the more sensible pick over the turbo, regardless of what the ARAI sheet suggests.
Fuel Tank Capacity & Range Per Tank
Kia seltos fuel tank capacity varies by engine — the naturally aspirated petrol and the diesel both carry a 47-litre tank, while the turbo petrol gets a slightly larger 50-litre tank to offset its lower real-world mileage. On paper, that gives the diesel manual a theoretical range of over 900 km per tank at its ARAI figure, though realistic highway driving brings that closer to 750 to 800 km.
The standard petrol’s 47-litre tank at real-world city mileage of around 11 km/l works out to roughly 500 km between fill-ups, which is reasonable for a compact SUV but noticeably short of what the diesel offers on long-distance routes. If you’re comparing this against a similarly sized rival, it’s worth checking how the Tata Altroz petrol mileage and tank range stack up, since tank size and real mileage together matter more than either number alone.
Ground Clearance for Indian Roads
Kia seltos ground clearance is 200 mm on the new second-generation model — a 10 mm increase over the outgoing Seltos, which sat at 190 mm. That extra clearance, combined with the longer 2,690 mm wheelbase, helps the new Seltos deal with speed breakers and uneven rural roads without scraping the underbody, something several first-drive reviews specifically called out as improved over the previous generation.
This works well for most Indian road conditions, including moderately broken city roads and rural highways. It’s still not a genuine off-roader — 200 mm is competitive within the compact SUV segment but well short of what a body-on-frame SUV offers, so steep unpaved inclines or deep ruts remain outside its comfort zone.
Tyre Size & Replacement Cost
Kia seltos tyre size changes across the variant lineup: the base trims run 205/65 R16, mid variants step up to 215/60 R17, and the top-spec GT Line and X-Line trims get 215/55 R18 alloys. Larger wheels sharpen steering feel and highway stability but add a small ride-comfort and acceleration penalty due to extra unsprung weight.
Kia seltos tyre price scales with that size jump. Mid-range tyre brands like MRF and CEAT typically price a 205/65 R16 tyre in the ₹6,000 to ₹7,500 range per tyre, while the 215/55 R18 fitment on the top trims runs closer to ₹9,000 to ₹11,000 per tyre from the same brands, given the larger diameter and lower profile. Budget for the full set plus alignment when replacement time comes, not just the per-tyre price — a compact SUV this size needs proper wheel balancing after a full tyre swap to avoid uneven wear.
Frequently Asked Questions
What is the average mileage of Kia Seltos in real-world driving?
Kia seltos average in petrol real-world use lands around 10 to 12 km/l in the city and 15 to 17 km/l on the highway for the standard NA engine. The turbo petrol runs lower in the city, while the diesel consistently outperforms both petrol options in mixed driving.
Is diesel or petrol better for the Kia Seltos?
Diesel wins on pure fuel efficiency and is the better choice for anyone driving over 15,000 km a year, especially with a highway-heavy routine. Petrol makes more sense for lower annual mileage or predominantly city use, where diesel’s higher upfront cost takes longer to recover through fuel savings.
Does the turbo petrol Seltos really give better mileage than the standard petrol?
Only with the DCT gearbox, and only on paper — the turbo DCT’s 17.5 kmpl ARAI figure edges out the standard petrol’s 16.5 kmpl. In hard daily driving, the turbo’s real-world city mileage usually falls below the standard petrol’s, since the engine is tuned for performance rather than restraint.
What’s the biggest mistake buyers make when comparing Seltos mileage figures?
Comparing ARAI numbers directly without accounting for how each engine behaves outside lab conditions. The turbo petrol’s ARAI figure looks stronger than the standard petrol’s, but in daily city use with normal throttle input, the standard petrol usually returns better real-world numbers.
Does the Kia Seltos come with a CNG option?
No, Kia does not currently offer a factory-fitted CNG variant of the Seltos. Buyers specifically looking for CNG running costs would need to look at rivals that offer that option from the factory rather than relying on aftermarket conversion, which can affect warranty coverage.
Final Thoughts
The single most useful takeaway on kia seltos petrol mileage is that gearbox choice matters more than most buyers expect — the turbo DCT beats the turbo iMT by nearly 2 kmpl on paper, and the standard petrol loses nothing by going automatic. Diesel remains the clear pick for high-mileage highway drivers, while the standard petrol iVT is the more realistic choice for city-heavy ownership.
Before finalizing a variant, match the engine to your actual annual driving pattern rather than the ARAI sheet alone, and factor in tyre size and fuel tank capacity together with mileage — they determine your real running cost far more than the claimed kmpl figure by itself.
