Compare the Mahindra Thar Roxx petrol and diesel models in terms of mileage , fuel efficiency, operating costs, and overall performance. Mahindra Thar Roxx has 7 videos of its detailed review, pros & cons, comparison & variants explained, first drive experience, features, specs, interior & exterior details and more. Here is Mahindra Thar Roxx Mileage Details of All Variants. Find out other details like driving range, fuel tank capacity, and more. Make the best decision. As someone who has actually driven this beast personally and even had a chat with 2-3 owners of the Thar ROXX , I’m excited to give you a first-hand, real-world review —especially focusing on its mileage , which is a big concern for buyers looking at powerful off-road vehicles.