On fuel economy, affect a number of different factors. These include the aerodynamics of the body, rolling resistance, road conditions, driving habits, as well as the characteristics of the engine and transmission.
When driving in the city the most important factor in fuel economy is rolling resistance. Its value largely affects the tire carcass construction. Technical characteristics of radial tires are far superior to the diagonal tires. Their advantage is that they are almost 50% decrease in rolling resistance, improved adhesion to wet and snow-covered road, and serve as an order of magnitude longer.
Large fuel consumption occurs when starting a cold engine, or only repaired the power unit. You play important role friction losses. As the engine, warms up these losses are reduced. The key to the normal fuel consumption is technically serviceable car with proper adjustment of all systems. Thus, incorrect installation of the ignition timing leads to increased fuel consumption up to 20%.
It is important to change the air filter on time. Especially this advice applies to urban residents. It is no secret that the air deficit in the preparation of the fuel mixture leads to an increase in fuel consumption. It is necessary to timely check tire pressure. At low pressure the car harder to disperse and braking, which also affects the consumption. To reduce engine wear and reduce power consumption, you need to regularly change the engine oil according to maintenance standards. Synthetic and semi-synthetic oils have a lower viscosity than mineral oil, so they make it easy to start the engine and reduce fuel consumption.
Owners of cars with air suspension for fuel economy should choose the lowest position, as for a small clearance of air resistance while driving is minimal. Regarding the driving mode, it is important to remember that the best mode is at the highest possible driving transmission to the engine speed range at 1500-2000 rpm. On the fuel consumption and engine, wear has a great influence gear ratio gearbox, as in fact the engine mileage, and the total number of revolutions of the crankshaft do not determine the resource. Thus, driving in low gears at the same run on two identical machines, a negative impact on the resource engine.
It is worth to mention that an increased fuel consumption results in the use of air conditioning and climate control, as well as loud music, and included defrost. All of these options increase the load on the generator, which immediately leads to an increase in consumption. Therefore, in order to save it is recommended to include them as little as possible.
Watch this video for more tips that will help you save on fuel: