Where is the energy lost? A little bit of theory.
If you want to drive economically, you need to know where to depend on fuel consumption levels. Practice without theory does not always make you to enjoy the results. So we suggest, although not a university, but a short car theory course.
Can you imagine that in most cases half the fuel consumption heats only the environment? This is simply the heat of the output of the engine. Now we know, that there is only half left and it depends on driver's ability, how the remaining energy will be used. As stated Automotive Engineers, this remaining energy not only drives the car, but also supplies power to the remaining auxiliary vehicle systems.
"By turning the generator or engine cooling fans there is a loss of another 10% of energy. Other significant energy disappearing between transmission gears, where in any case the loss is between 7-15%. Even more loss found in older automatic gearbox, but the whole chain of energy loss does not stop here. The last link in the chain - are car wheels. The engine has to overcome the wheel rolling resistance coefficient and it's a great extent depending on the tires. Ultimately, therefore, very little energy left to propel the car forward. And of course, these balances must be paid to good use, "- said automobile engineer.
How to reduce the losses?
Although the above-mentioned energy losses are inevitable, substantial increase of operating a car may lead to a minor reduction on fuel consumption. Did you know what the car's air conditioning can use as much as 10 horsepower? Slightly smaller amount of energy is sucked by a powerful sound system or fog lights. Driveline losses offset by little on good gear oil. It is not necessary to change oil often, but sometimes people forget even to check the level of the gearbox.
Let's not forget the tires, because of different manufacturers and different tire patterns rolling resistance is often quite different. Therefore, when buying tires, be sure to ask the seller about the car and which tires are most suitable. Regularly check your tyre pressure, air filter – make sure it's clean and in good condition. When driving on motorways, close your windows as opening them will reduce vehicles aerodinamics by 40%. Remove unnecessary weighty items from the boot and drive smoothly avoiding sharp acceleration and braking.