In the conditions of constant growth of fuel prices, the question of car efficiency becomes one of the key when choosing a new car. Many drivers mistakenly believe that diesel engines Hybrids are the only way to reduce fueling costs, but modern gasoline engines have achieved incredible efficiency.
Choosing. petrol-carIt is important to take into account not only passport data, but also real operating conditions. Direct injection technologies, low pressure turbocharging and gas distribution phase change systems allow to obtain minimum Even in urban-class models without compromising on dynamics.
In this article, we will look at which models have proven to be leaders in saving, and which factors affect the appetite of the engine. Understanding these nuances will help you not to overpay for every thousand kilometers of mileage.
Technologies that reduce fuel consumption
Modern engineering works wonders by allowing you to remove more energy from one liter of fuel. The main tool of the engineers became direct-injectionIt delivers gasoline directly to the cylinder under high pressure. This ensures a more complete combustion of the mixture and increases the efficiency of the engine.
Another important innovation is the system. stop-and-stop. It automatically silences the engine when stopping at traffic lights or in traffic jams, preventing idling. Although many drivers turn off this feature due to vibrations, it can save up to 10-15% of fuel in an urban cycle.
It is also worth mentioning the variators and robots with a large number of gears. Multi-stage transmissions Allow the engine to operate in the optimal range of revs, which is critical for saving on the track.
Why does direct injection require quality fuel?
Direct injection systems (GDI, TFSI, SkyActiv) have very thin injectors and high pressure. The use of low-quality or impurity gasoline can lead to rapid formation of flare on the valves and failure of the high-pressure fuel pump. Repairing such systems is more expensive than saving on cheap fuel.
But technology is not all-powerful. Aerodynamics of the body plays a huge role at speeds above 80 km / h. The streamlined body creates less air resistance, causing the engine to spend less effort to overcome the air flow.
Leadership rating: small class B and C
The most impressive consumption figures are traditionally shown by small and subcompact cars. Lightweight bodies and small engine volumes allow you to achieve performance that seems fantastic for larger cars.
The Unconditional Leader is often called the Unconditional Leader. Toyota Yaris with a hybrid system, but only if petrol versionsIt is worth paying attention to models with atmospheric motors of 1.0–1.2 liters. They provide a combined flow rate of about 5.5-6.0 liters per 100 km.
In class C (golf class) the situation is a little more complicated due to the larger mass, but here there are also heroes of economy. Modern turbocharged engines with a volume of 1.0-1.4 liters work wonders, offering the dynamics of old two-liter engines at a consumption of no more than 6.5 liters.
It is important to understand that the declared consumption by the manufacturer is a laboratory indicator. The actual numbers depend on the driving style, but even with the error, the cars in this segment remain. most accessible content.
Middle class and crossovers: where to look for savings
When it comes to crossovers or D-Class cars, the requirements for efficiency change. The balance between comfort, safety and fuel costs is more important. However, in this segment you can find fuel-efficient.
The mass of the car plays a key role. Engineers are increasingly using high-strength steel and aluminum to reduce weight without losing strength. The lightweight body requires less energy to accelerate, which directly affects the flow meter.
⚠️ Note: When buying a used crossover with a turbo engine, be sure to check the status of the turbine and intercooler. Faults in the boost system can quietly increase fuel consumption by 20-30%, turning an economical car into a voracious one.
Among the popular models, it is worth highlighting Mazda CX-30 and Kia Ceed. Thanks to technology. SkyActiv And modern atmospheric engines, they demonstrate enviable efficiency even in urban traffic jams.
And we should not forget about aerodynamics. Crossovers with high ground clearance and angular shapes create more resistance than streamlined sedans. Therefore, at high speeds, the difference in consumption between a sedan and an SUV of the same class can be significant.
Comparative table of popular models
For clarity, we have prepared a comparison of popular models by their passport and real indicators. The data is averaged based on the test and feedback of the owners.
| Model | Engine. | Expenditure (city) | Expense (road) |
|---|---|---|---|
| Hyundai Solaris | 1.4 petrol | 7.2 l/100 km | 5.1 l/110 km |
| Kia Rio | 1.4 petrol | 7.4 l/100 km | 5.3 l/100 km |
| Volkswagen Polo | 1.4 TSI | 6.8 l/100 km | 4.9 l/100 km |
| Toyota Yaris | 1.5 petrol | 6.5 l/100 km | 4.8 l/100 km |
As you can see from the table, even small differences in engine size or transmission type give a noticeable difference in the total costs. Turbocharged engines They often beat out atmospheric counterparts on the track, but can lose in dense urban traffic when driving aggressively.
When choosing, you should take into account not only the numbers, but also the availability of spare parts. The fuel savings can be offset by expensive maintenance of a complex engine.
Factors that increase fuel consumption
Even the most economical car can become "gluttonous" if you do not follow certain rules of operation. There are many factors that drivers often forget.
The first and most important is the technical condition. Contaminated. fuel-nozzleOld air filters or spark plugs with a large gap increase gasoline consumption. Regular maintenance is not just a formality, but a way to maintain passport economy.
☑️ Checking before a long-haul flight
The second factor is the driving style. Sharp acceleration and braking, high-speed movement and frequent use of air conditioning at low speeds dramatically increase the flow rate. Smoothness is the key to saving.
The third factor is external conditions. Open windows at high speeds disrupt aerodynamics. The trunk on the roof creates additional resistance. Even an extra 50 kg of cargo in the trunk, which you carry "just in case", affect the appetite of the engine.
⚠️ Warning: Low tire pressure is the hidden enemy of the wallet. A reduction of 0.2 atmosphere pressure from normal can increase fuel consumption by up to 3-5%. Check your blood pressure every two weeks.
How to reduce costs: practical advice
There are many ways to reduce fuel consumption without buying a new car. The easiest one is the route planning. Bypassing traffic jams and choosing roads with uniform traffic allow you to keep the engine in optimal mode.
Use of the cruise control on the track helps to maintain a constant speed, excluding unnecessary acceleration. It is also worth accustoming yourself to "inertial" driving: release the gas pedal in front of traffic lights in advance, allowing the car to coast down.
Use applications for navigation with real-time traffic jams in mind – this will help to avoid standing in congestion, where fuel consumption is maximum.
Don’t forget about the quality of the fuel. Only refuel at checked gas stations. Low-octane gasoline or fuel with water can cause detonation, which will not only increase consumption, but also lead to a detonation. engine failure.
Reducing the use of electronics also has an effect. Turn off the heating of the seats and mirrors immediately after use, do not keep the air conditioner on, unless there is an urgent need for this.
Gasoline vs. Diesel: Which is more profitable?
The eternal dispute of motorists: what to choose? Diesel engines are traditionally considered more economical, especially on the track. However, the difference in fuel price and maintenance cost often negates these savings.
If your annual mileage is less than 20-25,000 kilometers, petrol-car It's probably more profitable. Diesel requires more expensive oil, high-quality diesel fuel and expensive maintenance of exhaust gas cleaning systems (AdBlue, particulate filters).
Gasoline engines are cheaper to repair, work quieter and better tolerate short trips in the city when the engine does not have time to warm up. For urban use, modern gasoline is often a more rational choice.
The purchase of a diesel engine is justified only with large annual runs (more than 25,000 km) and mainly road operation. Gasoline is often more profitable in the city.
In addition, gasoline cars are less sensitive to fuel quality in winter and do not require special additives at low temperatures.
Does the engine size affect reliability?
Not always. Small turbocharged engines (1.0-1.2 liters) experience high thermal and mechanical loads, which can reduce their resource compared to larger atmospheric engines (1.6-2.0 liters), operating in a more gentle mode. However, modern materials allow even small motors to walk for a long time with proper maintenance.
Should I buy a CVT (CVT) car?
The CVT provides smooth running and often better economy in the urban cycle, as the engine always operates in the optimal zone. However, variators are demanding on oil and do not like sharp starts and towing. For a quiet ride - a great choice, for racing - not.
Is it true that mechanics is more economical than a machine?
It used to be. Modern 6-8-speed automatics and robots are often more economical than mechanics, since the computer switches gears more accurately than a person, preventing the motor from working at higher revs. The difference has become minimal or has disappeared altogether.
How does winter tires affect consumption?
Winter studded rubber has a more aggressive tread and softer composition, which increases rolling resistance. Fuel consumption on spikes can be higher by 0.5-1 liters compared to summer rubber or high-quality Velcro.
Do I need to warm up the engine in winter?
Prolonged heating on the spot (5-10 minutes) is not necessary for modern engines and is harmful to the environment and engine (mixing on the cold is not ideal). 1-2 minutes is enough to distribute the oil, and then a calm movement without high loads until the operating temperature is reached.