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HomeFuel EfficiencyTata Harrier Petrol Automatic Real City Highway Mileage Test

Published : 29 October 2026

Read Time : 5 min

In this article, we’ll present the data based on V3Cars mileage test and inform you about what real-world fuel efficiency you can expect from the Tata Harrier 1.5L turbo petrol-automatic in city and highway driving conditions. We’ll also find out how much the mileage numbers deviate from the manufacturer-claimed fuel efficiency figures. The information presented in this article will also help you learn about the mileage differences you can expect when driving in the city vs driving on the highway.

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Tata Harrier Petrol-Automatic Mileage Test: City & Highway

Testing Method & Flat Fuel Price Assumption

Before we provide the actual mileage of the Tata Harrier 1.5L turbo petrol-automatic, let's briefly explain our testing process so that you can decide if it matches your preferences, style and conditions for driving.

We use the tank-full-to-tank-full method for our real-world fuel efficiency tests. First, we fill the fuel tank to the brim, reset the trip metre, and then begin our ~100km city drive in Delhi NCR traffic. The test is conducted on the same route during weekdays to simulate realistic city driving conditions, while maintaining the same load to keep the results consistent.

For both city and highway runs, the vehicle is driven in its Normal drive mode, where available, since our goal is not to extract the highest possible fuel efficiency figures, but to evaluate how the car is likely to perform for most drivers in everyday driving situations.

Once the city run is complete, we return to the fuel station, refill the tank to the same level and note the fuel consumed to calculate the city mileage. We then reset the trip metre before starting the highway mileage test. For the highway run, we choose the stretch around Sohna along the Delhi-Mumbai expressway and we drive it for 100km at a cruising speed of around 100kmph. Then, we refill and note down the trip metre readings to calculate the highway mileage figure.

For fuel prices, we assume a flat cost of Rs. 105.00 per litre for petrol, Rs. 100.00 per litre for diesel and Rs. 95.00 for CNG. This is done to bring our calculations and cost-per-km estimations closer to a national average price of the respective fuel type. For instance, using a very low price of CNG, as applicable in Delhi, skews the final verdict in favour of CNG vehicles even though CNG is quite expensive in most states.

What Is The Actual City Mileage Of Tata Harrier 1.5L Turbo Petrol-Automatic?

After driving the Harrier in the city traffic for about 4 hrs 02 mins, we drove back to the fuel station. We covered 101km with an average speed of 25.04kmph. During refuelling, we were able to fill up 11.55 litres of petrol in the Harrier at a per litre petrol price of Rs. 105.00. Thus, the total bill stood at Rs. 1,212.75 and in our real-world city mileage test of Harrier 1.5L turbo petrol-automatic, we got a final fuel efficiency figure of 8.74kmpl.

What Is The Real Highway Mileage Of Tata Harrier 1.5L Turbo Petrol-Automatic?

With the tank filled to the brim once again, we headed out on the Delhi-Mumbai expressway to test the highway mileage of the Harrier 1.5L turbo petrol-automatic. We managed to complete our 101.1km drive in about 1 hrs 20 mins, meaning our average speed during the highway mileage test of the Harrier was 75.83kmph. After the drive, we filled up 6.97 litres of Petrol, incurring a bill of Rs. 731.85 if you assume a fuel price of Rs. 105.00 per litre. During our highway run of the Tata Harrier with the petrol-automatic, we achieved a highway mileage of 14.51kmpl.

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Claimed Mileage Vs Actual Highway/City Mileage Of Tata Harrier 1.5L Turbo Petrol-Automatic (6-speed TC) — What’s The Difference?

Based on our mileage test, the Harrier petrol-automatic gave us a city mileage of 8.74kmpl. On the highways, you can expect this figure to jump up by 66.02% to 14.51kmpl, as we saw in our Harrier mileage test.

Compared to the official claimed mileage figure of the Harrier petrol-automatic, our Harrier petrol-automatic city mileage turned out to be 8.26kmpl less efficient. Thus, showing a 48.59% deviation from the claimed figure. With this fuel efficiency, you can expect to incur a per kilometre fuel cost of Rs. 12.01 if you drive mostly in the city traffic with a fuel cost of Rs. 105.00.

TATA HARRIER 1.5L TURBO PETROL-AUTOMATIC

CLAIMED VS REAL MILEAGE COMPARISON

City Fuel Cost (per km)

Rs. 12.01

City Deviation

-48.59%

City Mileage

8.74kmpl

Difference

8.26kmpl less efficient

Claimed Mileage

17.00kmpl

Difference

2.49kmpl less efficient

Highway Mileage

14.51kmpl

Highway Deviation

-14.65%

Hwy Fuel Cost (per km)

Rs. 7.24

In terms of highway mileage, we achieved a figure of 14.51kmpl with the Harrier we drove. This number of 2.49kmpl is less than the claimed mileage figure. Thus, the deviation in the highway mileage of the Harrier petrol-automatic is about 14.65% on the negative side. At this rate, you can expect to spend Rs. 7.24 per kilometre for predominantly highway driving during the ownership.

Tata Harrier 1.5L Turbo Petrol-Automatic (6-speed TC) — Actual City vs Highway Mileage, Custom Real Mileage, Fuel Cost Comparison

If your driving happens entirely on the highways or just within the city, then you know what mileage you can expect from the Tata Harrier petrol-automatic. However, for those who have a mixed usage, we have compiled combinations of effective mileage of Harrier petrol-automatic based on the variations of city-highway driving ratio.

Using this customised city-highway combinations, you can better gauge what fuel costs and realistic fuel efficiency you can expect from the Harrier with the petrol-automatic powertrain.

TATA HARRIER 1.5L TURBO PETROL-AUTOMATIC

CUSTOM REAL MILEAGE ESTIMATE

City-Hwy Usage (% Split)

Effective Mileage

Per KM Fuel Cost

0-100%

14.51kmpl

Rs. 7.24

10-90%

13.61kmpl

Rs. 7.71

20-80%

12.82kmpl

Rs. 8.19

30-70%

12.11kmpl

Rs. 8.67

40-60%

11.48kmpl

Rs. 9.15

50-50%

10.91kmpl

Rs. 9.62

60-40%

10.39kmpl

Rs. 10.11

70-30%

9.92kmpl

Rs. 10.58

80-20%

9.50kmpl

Rs. 11.05

90-10%

9.10kmpl

Rs. 11.54

100-0%

8.74kmpl

Rs. 12.01

*City mileage: 8.74kmpl; Highway mileage: 14.51kmpl
*To accommodate varying fuel prices across the country, and to make the cost per kilometer information a bit more relevant for a larger number of potential car buyers, we are assuming a fixed fuel cost of Rs. 105.00 per litre for petrol and Rs. 100.00 per litre for diesel

Based on these combinations, for a 70% city and 30% highway usage, you can expect a real world mileage of 9.92kmpl and a per kilometre fuel cost of Rs. 10.58 from the Harrier. With a flipped combination, where you drive the Harrier 70% on the highways and 30% in the city, you can expect your real-world mileage figure to hover around 12.11kmpl with fuel costs around Rs. 8.67.

For an even split of city and highway usage, your real fuel efficiency with the Harrier 1.5L turbo petrol-automatic powertrain, your effective real mileage is likely to be closer to 10.91kmpl. Thus, your per kilometre fuel costs could be around Rs. 9.62.

Real Driving Range (Full Tank Driving) Of Tata Harrier Petrol-Automatic For Your Driving Requirements

The Tata Harrier with the 1.5L turbo petrol-automatic comes with a 50-litre fuel tank. With this capacity and our realistic mileage estimates, you can expect to get a range of 393 - 653 km depending on whether your driving is entirely within the city or on the highways.

With a 70-30 driving split in favour of city usage, you can expect a full tank range of 446km from the Harrier. However, if you flip the driving condition to 30-70 in favour of highway, then you can expect a range of 545km with a full tank of fuel. On an even split of 50% city driving and 50% highway driving, you will have to refuel about every 491km.

TATA HARRIER 1.5L TURBO PETROL-AUTOMATIC

CUSTOM REALISTIC RANGE ON FULL TANK

City-Hwy Usage (% Split)

Effective Range

0-100%

653km

10-90%

612km

20-80%

577km

30-70%

545km

40-60%

517km

50-50%

491km

60-40%

468km

70-30%

446km

80-20%

428km

90-10%

410km

100-0%

393km

*Tank range estimated based on 90% fuel usage with 10% remaining in reserve

At the time of testing the Tata Harrier 1.5L turbo petrol-automatic, each refuelling will cost you Rs. 4,725.00 if you fill up 90%. This is assuming the fuel cost of Rs. 105.00 per litre of petrol.

Also Read: Tata Aeris 1.2L Petrol-Manual Mileage Test: Real City, Highway Fuel Efficiency
Nissan Tekton 1.0L Turbo Petrol-Manual Mileage Test: Real City, Highway Fuel Efficiency

Find out how you can get the best mileage or fuel efficiency from your car:

10 Tips To Get Better Mileage From Your Petrol, Diesel Or CNG Car

Helpful Links:

Mileage Calculator – Calculate your vehicle's fuel efficiency based on distance driven and fuel consumed.

Fuel Cost Calculator for Cars – Know your monthly fuel expense based on usage and mileage

Car On-Road Price Calculator – Convert ex-showroom to on-road price for any city

Sell Used Car Online – Enter your car and contact details to get an instant price estimate and book a free inspection with our partner network

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Navneet Kumar Author V3Cars
Navneet Kumar

Web Content Writer

Navneet is drawn to systems that work with clarity and purpose—clean, efficient, and built to last. He values solutions that feel intuitive and seamless, even if the effort behind them is anything but simple.

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