1) Drive reasonably
Speeding, a common driving habit, leads to pointless fuel wastage. Reducing air conditioning or winding up windows fully can also help conserve fuel.
2) Drive vehicles that are low in fuel consumption
The best option is to purchase the most fuel efficient vehicle within the class of vehicles you are considering.
3) Proper maintenance
Keep your vehicle’s tires inflated with air and the air filter clean, this saves fuel consumption.
4) Leaving the engine idle – too long
If you leave your engine running (without actually moving) for a minute, this wastes more gas than restarting the engine.
5) Do not overload the vehicle
The more weight you carry in your car, the more fuel you are going to burn.