Tata Sierra vs Hyundai Creta mileage comparison in 2026 — ARAI fuel efficiency compared across every engine
- 1Tata Sierra diesel manual leads with 21.26 kmpl
- 2Seltos NA petrol iVT and manual are rated at equal 16.5 kmpl
- 3Sierra turbo-petrol AT returns 15.30kmpl against Seltos turbo-petrol DCT at 17.5kmpl
When Tata revived the Sierra nameplate, it returned to a segment already dominated by one of the most fuel-efficient compact SUVs in India. The Hyundai Creta has been a benchmark for mileage in the midsize SUV space for years.
How does the new Sierra stack up? The honest answer is: better than you might expect on diesel and comparable on NA petrol, but the Creta still holds a meaningful advantage on turbo-petrol efficiency. Here is where each car wins, engine by engine.
Tata Sierra vs Hyundai Creta mileage comparison in 2026 — N/A petrol
This is arguably the fairest starting point since both cars offer a 1.5-litre naturally aspirated petrol engine with manual and automatic transmissions aimed at similar buyers.
| Model | Engine Type | Power / Torque | Transmission | ARAI Mileage |
|---|---|---|---|---|
| Tata Sierra | 1.5L NA Petrol | 115 PS / 143 Nm | 6MT | 17.40 kmpl |
| 7DCT | 16.90 kmpl | |||
| Hyundai Creta | 1.5L NA Petrol | 115 PS / 143.8 Nm | 6MT | 17.4 kmpl |
| iVT | 17.7 kmpl |
In the manual, it is a dead heat. Both cars return exactly 17.4 kmpl (or 17.40 for the Sierra), which tells you that both engines are similarly calibrated for economy. On the automatic, the Creta pulls slightly ahead at 17.7 kmpl against the Sierra's 16.90 kmpl. The Creta uses an iVT, which is a belt-driven CVT optimised for smooth and efficient power delivery. The Sierra uses a DCT on its NA petrol automatic. The near-identical manual numbers are an encouraging sign for the Sierra, suggesting Tata's ARGOS platform is genuinely competitive on fuel economy despite being a newer, heavier architecture.
Also Read: Toyota Taisor prices hiked in April 2026 — Turbo petrol variants now cost up to Rs 24,000 more
Tata Sierra vs Hyundai Creta Turbo-petrol mileage
The turbo-petrol is where the gap between the two cars becomes most visible. The Sierra offers its turbo-petrol only with a 6-speed torque-converter automatic while the Creta pairs its 1.5-litre turbo-petrol with a 7-speed DCT.
| Model | Engine Type | Power / Torque | Transmission | ARAI Mileage |
|---|---|---|---|---|
| Tata Sierra | 1.5L Turbo Petrol | 170PS / 280Nm | 6AT (Torque Converter) | 15.30 kmpl |
| Hyundai Creta | 1.5L Turbo Petrol | 160PS / 253Nm | 7DCT | 18.4 kmpl |
This is the most striking comparison in this article. The Creta turbo-petrol DCT returns 18.4 kmpl, which is 3.1 kmpl better than the Sierra's 15.30 kmpl. The difference is significant and largely comes down to the type of automatic gearbox. A 7-speed DCT operates more like a manual transmission internally, using two clutch packs instead of a fluid torque converter. This avoids the energy losses that come with torque-converter automatics, especially at steady highway speeds. If turbo-petrol efficiency is a deciding factor, the Creta is the stronger choice by a wide margin.
Tata Sierra vs Hyundai Creta diesel mileage
Diesel is where the Sierra makes a genuine contest of this comparison. The gap on turbo-petrol mileage disappears almost entirely on the diesel manual and the Sierra actually takes the lead on the diesel automatic.
| Model | Engine Type | Power / Torque | Transmission | ARAI Mileage |
|---|---|---|---|---|
| Tata Sierra | 1.5L Diesel | 115 PS / 260 Nm | 6-speed Manual | 21.26 kmpl |
| 6-speed automatic torque converter | 19.22 kmpl | |||
| Hyundai Creta | 1.5L Diesel | 115 PS / 260 Nm | 6-speed Manual | 21.8 kmpl |
| 6-speed Automatic | 19.1 kmpl |
The Creta diesel manual leads by just 0.54 kmpl at 21.8 kmpl against the Sierra's 21.26 kmpl. In real-world driving conditions, that gap is unlikely to feel meaningful. More interestingly, the Sierra diesel automatic at 19.22 kmpl is slightly ahead of the Creta diesel AT at 19.1 kmpl. This is the one configuration where the Sierra can claim an efficiency win over the Creta. For diesel buyers who prefer an automatic the Sierra not only competes with the Creta but beats it marginally on ARAI-certified fuel economy. That is a meaningful achievement for a car that entered this segment just months ago.
Also Read: 2026 Kia Seltos vs Hyundai Creta mileage breakdown — Every engine and gearbox compared
Which is better in terms of mileage?
The Hyundai Creta is the better overall choice if maximising ARAI-certified fuel efficiency is your goal. It wins on turbo-petrol by a large margin and holds the diesel manual lead. However the Tata Sierra is not far behind in any diesel comparison and is essentially equal on NA petrol manual. The Sierra's biggest mileage disadvantage is specifically in the turbo-petrol automatic segment. Buyers who are deciding between the two on diesel would find the numbers much closer than expected and the Sierra diesel automatic is actually the more fuel-efficient option among the two.
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