The Tata Tiago’s diesel mileage in city is around 17 KMPL. It is powered by 1047cc 1.05-liter Revotorq three-cylinder common rail diesel engine which produces a maximum power of 69 BHP @ 4000 RPM and 140 NM @ 1800-3000 RPM. The fuel tank capacity of the Tiago is 35 लीटर.