How to reduce fuel consumption? This issue worries many car owners, especially along with the constant rise in gasoline and diesel fuel prices. At the same time, the problem worries the owners of both new cars and used vehicles. This effect can be achieved in several ways. The recommendations are relevant for almost all injection and carburetor cars. Let's try to understand these methods in more detail.
Average fuel consumption on VAZ models
Before figuring out how to reduce fuel consumption at the VAZ, consider the “appetites” of various modifications. For example, on version 2106 this parameter ranges from 7.6 liters on the highway to 11 - in the city. The indicator for a similar model with a 1.5 liter engine and version 21061 is slightly higher. The 1.6-liter carburetor “six” consumes from 8 to 12 liters of gasoline per 100 kilometers.
It is worth emphasizing that these characteristics are relative. As many owners note, over time, this figure increases by 1.5-2 liters. Sometimes it comes to the point that the standard "car" eats "fuel as a full-size SUV.
What affects gas consumption?
We will find out what affects consumption and how to reduce consumption at the VAZ. Of course, it will not be possible to reduce the vehicle’s needs to absolute zero, since the engine cannot function in air. Nevertheless, to minimize this indicator is quite realistic. Any additives and devices are a dubious option. Most of all these “lotions” are another way to entice financial resources from unsuspecting customers.
Criteria that may adversely affect the "appetites" of domestic cars from a VAZ manufacturer:
- vehicle technical condition;
- operational nuances;
- violation of the engine, transmission, chassis.
Cylinders and pistons
Below is one way to reduce fuel consumption. The power unit, the working life of which is almost completely exhausted, significantly increases gasoline consumption. The maximum wear of the cylinder-piston block leads to an increase in the gaps between the walls of the rings and cylinders. This leads to excessive ingress of exhaust gases into the sub-piston compartment along with the air-fuel mixture.
The same problem affects the compression drop, and the fuel does not burn out completely, just flying out through the exhaust pipe. In addition, the motor power parameters are reduced, the dynamics and speed indicators are falling. In order to stabilize the car, the driver has to squeeze the gas pedal harder. To obtain savings, it is necessary to diagnose the power unit. This includes measuring the compression, listening to it for the presence of extraneous noise and sounds. If excessive wear occurs, the unit should be overhauled with the replacement of defective elements.
How to reduce fuel consumption on a carburetor?
Not the last role in the considered moment is played by the gas distribution mechanism. In the case of carbon deposits on the valves and seats, there is a violation of the tightness of the fit of these parts, which leads to loss of compression. The problem can be solved by repairing the cylinder head and lapping the valves.
In case of malfunction of the gas distribution phases, the fuel consumption also increases. In this direction, the operation of the unit is affected by the wear of the camshaft, rockers, valves, drive chain, the appearance of excessive thermal clearance. Trying to optimize the "appetites" of the car, it is necessary to replace the very worn parts, correctly adjust the thermal gap.
Power node
If you need to reduce consumption on the carburetor, you should pay attention to the car's power system. If this unit is very dirty and improperly adjusted, the dosage of the fuel is violated. In this regard, the specified part must be regularly inspected and washed. Also, the condition of the air filter affects the consumption of gasoline. A clogged element substantially loses its throughput, there is not enough air in the system, and an enriched fuel composition is supplied to the cylinders. To prevent this, the filter must be changed in a timely manner.
To set the carburettor correctly, the flow must be adjusted. Significant savings can be achieved if you install jets with a reduced cross section and the corresponding screws of good quality. It is worth noting that in this situation, a decrease in the power and dynamics parameters of the machine is observed. Such a design negatively affects the acceleration of the car, and you can completely forget about overtaking on the track. Correct carburetor adjustment is to achieve optimum harmony regarding gas consumption and power parameter. In this case, the nozzles do not need to be changed.
Ignition
Next, we consider how to reduce engine fuel consumption in the ignition system. The following points have a significant impact on consumption:
- heavy pollution of candles;
- incorrectly set ignition;
- excessively depleted work resource;
- losses due to breakdowns of high voltage wiring and lugs.
In the presence of the indicated problems, it is necessary to replace and clean the defective parts, and also to correctly configure the ignition. If you change the standard distributor to a non-contact option, this will also have a positive effect on fuel consumption downwards due to lower voltage losses and easier maintenance of the unit.
All deformed wiring must also be replaced. Check it is easy, you need to park the car in a dark garage or place. Opening the hood, you will immediately see which cables and wires are punched to ground. How to reduce consumption yet? For example, consumption is affected by the quality of the lubricant. High-quality synthetic oil will make it possible to reduce friction between parts of the engine. This approach will also make it easier to start the engine at sub-zero temperatures.
Transmission unit
In this system, you should start checking with the main components that are repaired and adjusted if necessary. In addition, the technical compositions in the gearbox and rear-wheel drive should be changed on time. This will reduce friction and load on the motor.
How to reduce fuel consumption at a VAZ with a four-mode gearbox? To do this, it is simply changed to a five-band analog. In the city this will not give significant savings, but on the highway the result will be obvious.
Running system
In the design of the undercarriage, deformed or excessively tightened wheel bearings create increased resistance to rolling. The way out of this situation will be the maintenance of the hubs while tightening the bearings with the appropriate force. Uncoordinated camber / toe angles give similar results. This requires a mandatory correct installation of these elements.
An additional obstacle when driving is the wear of the components of the steering column. By adjusting the assembly, this problem can be solved. Tire pressure must be constantly monitored. When it is reduced, the contact spot of the wheel with the track increases, creating additional rolling resistance. In addition, you need to apply rubber in accordance with the season. In particular, this is noticeable if you drive on winter tires in the summer. Softer rubber creates additional resistance. A body with attachments also affects fuel consumption. All body kit elements greatly reduce the aerodynamics of the VAZ, which is already not considered the most optimal.
Operational features
How to reduce consumption on a VAZ carburetor using the driving style and maintenance of a car? Aggressive styling does not accompany fuel economy. Sharp banks and accelerations increase the "appetite" of the vehicle. You can save money if you switch to quiet control with smooth squeezing of the pedals and starting the “engine” with a slight tightness.
As practice shows, the engine speed "six" give the optimal result at the level of 3-5 thousand rotations per minute. If most of the traffic on the road is carried out in these ranges, the percentage of fuel savings can reach 25%. The rejection of a solid musical design reduces the load on the on-board system and excessive consumption of gasoline.
Other recommendations
There are still effective ways to reduce fuel consumption. It is necessary to reduce the operation of electrical equipment. It is also recommended to remove all unnecessary from the car to reduce the weight of the car. This is due to the fact that excess weight is an increased consumption of gasoline. Of course, do not get too carried away, leaving the most necessary elements in the form of a spare wheel, tool, jack.
Windows open while driving become a kind of wind tunnel. In this case, the air flow with considerable effort enters the cabin, resisting movement. The more they are open, the stronger the impact of the incoming stream. Since the VAZ’s sixth model does not have air conditioning as standard, in the summer it will not work with closed windows anyway. Some savings will allow working interior ventilation deflectors. The above recommendations will not create a special miracle, however, they will make it possible to reduce the car’s “gluttony” to a certain extent.
How to reduce fuel consumption on the injector?
In this case, the expected result will be a little more difficult. This is due to the fact that electronic equipment capable of handling certain violations is responsible for the supply of fuel. Therefore, if there is an excessive consumption of fuel, it is necessary to diagnose the machine and identify the faulty sensor. In addition, to achieve positive changes allows cleaning nozzles. They are checked for leaks, replaced if necessary. One of the effective ways is reprogramming the controller, which allows you to put the motor in the most economical mode of operation.
Other recommendations to reduce injector consumption:
- minimizing external body kits that worsen dynamics;
- tire pressure monitoring;
- light weight of the vehicle;
- preventing prolonged idling of the engine when the throttle valve closes, causing an increase in fuel supply;
- as in the carburetor version, it is desirable to maintain a calm driving style;
- ensuring the cleanliness of the air filter and the correct ignition setting.
In conclusion
I would like to note that the consumption of gasoline is affected not only by the above points, but also by the quality of the fuel itself. Poor fuel with impurities will be consumed in a larger volume. It does not burn out completely, reducing the power and dynamics parameter, requiring enhanced squeezing of the gas pedal. Good quality gasoline, although more expensive, but in the end gives a small savings. Observing all of these recommendations in combination, it is quite possible to reduce fuel consumption, which is not cheap, and domestic cars initially do not differ in thrift.