Tata Motors’ Sierra is back in the conversation. Again This time, not for design or nostalgia. But for something more practical mileage. The company still hasn’t shared official numbers. Bit surprising, honestly. But we finally drove it. Tested it And now there’s some real-world data on the table. Not perfect. But useful.
How is the mileage in city and highway conditions?
We took the Sierra out. Usual mix traffic, open roads, some chaos in between. The 1.5-litre turbo-petrol with the automatic gearbox behaved well. Smooth No drama.

In the city, it returned about 8.95 kmpl. Not great. Not terrible either. Highways were better 13.12 kmpl. So yeah, things improve when the road opens up. Combined figure settles near 9.99 kmpl. That’s where Tata Sierra Petrol AT mileage becomes the main talking point. If your daily drive is bumper-to-bumper you might notice the difference.
Engine and performance No shortage of power
Press the throttle and you get it. This engine likes to move. The 1.5L turbo petrol pushes out 158bhp and 255Nm. Numbers look good. And it feels like that too. But here’s the catch. Performance comes at a cost. That’s why Tata Sierra petrol mileage isn’t exactly impressive. The tuning is clearly not focused on efficiency.
Still, for someone who enjoys driving this won’t disappoint. At all
Real-world experience with the automatic variant
Now comes the real story. City traffic Signals Slow crawls This is where the automatic helps. A lot The gearbox is smooth. Doesn’t confuse you. But yes, Sierra AT mileage takes a small hit because of the torque converter setup. That’s expected. Also depends on how you drive. Aggressive? Mileage drops. Calm? Slightly better. Simple. India conditions matter a lot here.

Where does it stand against rivals?
Let’s be honest. When you stack it against rivals, Tata Sierra automatic mileage doesn’t really lead. Some SUVs in this segment are just more efficient. Period. But then again Sierra isn’t trying to be boring. It brings design, Presence, Safety That BNCAP score adds confidence too. So yeah, it balances things differently.
Also read : Tata Sierra EV Spied on Indian Roads – June 2026 Launch Confirmed
Is it the right choice for buyers?
Here’s the real question. Are you buying this SUV only for Sierra fuel efficiency? If yes, maybe pause. Think again. But if you want a mix style, power, comfort then it makes more sense. In India, buyers still check Tata Sierra mileage India before anything else. Old habit. Hard to change. Still, Sierra petrol AT real world mileage gives a clearer picture now. No assumptions. Just reality.



