1. Fuel at night or early morning: This is a phenomenon we often do not realise. We refuel petrol/diesel when the tank gets to the reserve. Oil expands with the rise in temperature. This expansion causes lesser energy generation, if fueled in hot time of the day. The fuel will burn faster than what you imagine. Best time to fuel the car is early in the morning or later at night.
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2. Fill fuel when half tank empty: One of the most important tips is to fill up when your petrol/ diesel tank is HALF FULL. There is a scientific reason to why you must do this. The more petrol/ diesel you have in your tank, the less air occupying its empty space. Petrol/ diesel evaporate faster when in contact with air. Nowadays petrol/diesel storage tanks have an internal floating roof. This roof serves as zero clearance between the petrol/ diesel and the atmosphere, so it minimises the evaporation.
3. Avoid full throttle while filling fuel: There are three modes in how you can fuel in a petrol pump. Low, medium and high. If you are using high throttle (i.e filling fast, pressing the lever down fully), it can easily evaporate. So try to fill at a slower speed when you are in a self service station, or instruct the bunk attendant.
4. Don’t fuel when the fuel filling tanker is filling the underground storage: It is important to notice this as when the tankers fill fuel at the fuel station all the dirt that is settled at the bottom gets disturbed and if you are fueling at the same time it can get into your vehicle tank along with fuel – it can affect your engine.
5. Regular checking of tyre pressure: Tyre pressure must be checked once every two weeks. It helps to reduce the drag while driving thus increasing your mileage. There is a label in your car just when you open the driver seat which tells you the tyre pressure.
I normally keep 1 psi above what is recommended while driving in city, it gives me better mileage. But when you are driving on highway, please keep the tyre pressure as recommended by the manufacturer because the tyre warms up on rotation. If you have greater air pressure, when the temperature rises, it can expand thus putting more pressure on the tyre. It can explode if it is a tube tyre or get punctured faster.
6. Clear of unwanted items from the car. We normally forget or get lazy to clear off the items and keep accumulating things unless we are falling short of space in the boot. It is important that you remove all the unwanted items whenever you are starting to move around. Every extra kilo of weight will need additional fuel, decreasing the mileage.
7. Replace spark plugs: once every 5 years, you must replace the spark plugs, use a better quality spark plug not the ordinary one which comes with the stock car. It improves your fuel combustion thus giving more mileage and it improves your Air condition performance.
8. Service your car at regular intervals: During car service, always get three things replaced – oil, oil filter & air filter. If you can find a reliable mechanic then you can do it at low cost. Only 100-200 rupee if you buy the oil, oil filter & air filter.