The Audi Q8, with its petrol-only powertrain options, delivers a premium driving experience but comes with relatively higher running costs due to its size and performance. The Q8 55 TFSI variant offers an ARAI-rated mileage of 12.4 kpl from its 3.0-litre V6 engine, while the RS Q8 Performance returns an estimated 7.5 kpl from its powerful 4.0-litre twin-turbo V8. Both variants feature a large 85-litre fuel tank, and fuel expenses will vary significantly based on traffic, terrain, and driving style. Use this calculator to estimate and plan your Q8’s fuel costs with greater accuracy.