To reduce fuel consumption should take into account three important node when you install the engine on the car: the cooling system, air supply and exhaust system.
Thus, the design of the water pump, radiator, fan and housing should provide sufficient cooling with minimal power. Increases resistance to the engine inlet reduces its effective power. The location of the air cleaner should also prevent it from getting clogged with snow or water.
Transmission gear ratios. Transmission ratios and the rear axle must meet the requirement of the transfer of power to the drive wheels, which is best used in all operating conditions. To achieve fuel economy should pick up as the engine and transmission parameters, the engine can operate in the zone of minimum specific fuel consumption with the power for the propulsion of a design speed.
Tires. Studies show that rolling resistance, which is directly related to fuel consumption, strongly influenced by the tire, in particular the type of cord and tread pattern. Tests have shown that the resistance kacheiiyu radial-ply tires (the Coast) 25% less than conventional tires, which gives fuel savings of about 5%. Wide-rolling resistance tires are also about 25% less than a conventional dual tires. Fuel consumption affects tire pressure. For example, at a speed of 50 - 70 km / h reduction in pressure from 8 to 6.5 kgf/cm2 increases fuel consumption by 12%.
Maintenance. Maintenance and the periodic thorough inspection of all units is a prerequisite to ensure high fuel efficiency car and train.
In the design of cars and trucks must work to provide easy maintenance and low cost of labor necessary for him.
Qualification driver. Fuel-efficient cars, according to various researchers, can fluctuate between 10-20%, depending on the style of driving. When driving a car is very important skill to perform a variety of actions in accordance with the regime Rabago engine.
If before the driver had taken power setting by ear, but now it can monitor mode on the tachometer. This is particularly important for vehicles with diesel engines, which is more narrow speed range, provides the most cost jobs. Becoming more common tachographs - devices that automatically record the time, path and speed and engine speed.