Q. How much it costs to make a hard top that with air conditioning? What is the actual mileage of thar which company claims?

Tips on using your air conditioner efficiently and much more can be found in this guide to improve fuel economy

Braking wastes energy, reduces momentum and requires more fuel as you accelerate again. Here's a smart guide to driving efficiently by minimising braking

The type of engine oil can make a huge difference to the fuel economy of your car. Here's a guide to pick the right oil

Drag or wind resistance is the main cause of high fuel consumption. Learn how to save fuel by driving behind a larger vehicle and using your vehicle's inertia to move ahead without using fuel

Unnecessary idling gets you nowhere and burns fuel in the process. Here's ways to avoid that