With increasing fuel prices it is becoming more and more prudent to save fuel to increase fuel economy and vehicle efficiency by using suitable methods:
(1) Use your gears wisely : Driving in the highest gear possible without laboring the engine is a fuel efficient way of driving. A vehicle travelling at 60 km/h in third gear uses 25 percent more fuel than at the same speed in fifth gear.
(2) Switch off your engine : Switching your engine off for short periods of time can actually increase fuel consumption, as it requires more fuel to get the engine started. Also your catalytic converter will no longer be running at full temperature and so your Vehicle will be less efficient, increasing the amount of pollution you cause. However if you are stopped for more than a few minutes then your vehicle will simply burn less fuel with the engine stopped.
(3) Drive off promptly to prevent wasting fuel : Don't leave your engine running when you first start up. Drive off straight away if you can, but drive gently until the engine has reached its normal operating temperature. This doesn't increase fuel efficiency as such, but it does mean your engine is switched on for less time.
(4) Use correct air filter : One of the most common reasons for a drop in fuel efficiency is a dirty intake filter. This will decrease the amount of air entering the cylinders of the engine resulting in incomplete combustion. Check the filter regularly to ensure that it is clean for improving engine efficiency.
(5) Use correct spark plugs : Ensure your spark plugs are in good condition. Renew the plugs and wires at intervals specified by the owner's manual. This will keep all cylinders firing properly resulting in higher efficiency.
(6) Use clean lubricating oil : Change the lubricating oil at intervals specified by the owner's manual. Use of an engine flush before changing the oil will help to get rid of a lot of the dirt that collects in the engine that a normal oil change will not remove. This basically thickens the oil which creates a better seal between the piston and the liner, preventing blow past and consequent loss of combustion pressure, resulting in higher fuel efficiency.
(7) Use 'Eco' Tyres affect fuel efficiency : It is estimated that about 50% of tyres on the road are under inflated. Check your tyre pressures every fortnight. Worn tyres will also decrease fuel efficiency (and your safety!), so check the tread regularly. If you are replacing tyre then consider some of the newer 'Eco' tyres that are designed specifically to increase fuel efficiency.
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Very informative & useful article
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