In our real world tests, the manual version returned 10.8kpl and 15.3kpl in the city and highway, respectively, an improvement of 1.0 and 1.1kpl compared to the BS4 140hp version. In the same test, the automatic managed a rather respectable 9.6kpl and 14.4kpl.
For the transition to BS6, this FCA-sourced 2.0-litre diesel engine has been tuned a bit differently and power has been bumped by 30hp to 170hp (thanks to a new turbocharger). Its on-boost performance feels a bit more effortless, so you won’t need to work the gears much to lug this 1,710kg SUV around town. The presence of an Eco mode dulls down its performance in the interest of efficiency, but the good news is that under heavy throttle inputs, the Eco mode performs just like the City or Sport mode.
The bigger surprise however is the Hyundai-sourced automatic transmission which returns an average of 12kpl (just 1.6kpl lesser than the manual), but it makes the drive experience so much nicer and more effortless compared to the manual, so it is a small compromise you will happily make. This automatic keeps the revs below 2,000rpm for the most part; the Eco mode performs similar to the manual. Its gear ratios are interestingly stacked with the first gear being rather tall, whereas gears two to five are shorter than the manual; but what’s really interesting is that only the sixth gear in the automatic is an overdrive gear, (ideal for relaxed, efficient cruising), versus the manual’s fourth, fifth and sixth. For reference, while cruising at 100kph in sixth gear, both the manual and automatic keep the engine spinning at 1,900rpm.
Autocar India’s fuel efficiency testing
Before our real world fuel efficiency test we fill the tanks of our test cars till the brim and maintain tyre pressures based on the manufacturer’s recommendation. These cars are driven in fixed city and highway loops and we maintain certain average speeds. To keep a check on any untoward variation, we always have a reference car driving along, one that we’ve already tested in the past; periodic driver swaps further neutralize variations in driver patterns. At the end of each cycle, we calculate efficiency by tanking them up till the brim. Throughout our test there is only one person in each car, running the air-con and other electrical like the audio system, indicators and wipers when required, just like how a regular user would. We take pride in our testing data which isn’t merely consistent, but also gives users an accurate indication of what they can expect in the real world.
Tata Harrier road test
Discounts on Tata Harrier