For the car's fuel consumption is generally a commonplace talk of an old scholar problem, related to the factors of car fuel consumption roughly five: displacement, weight, drag, engine and gearbox matching, and driving habits etc.. The first four belong to the hardware problem, the last one is the software problem". The reason is that roughly, because many problems need careful analysis, such as small displacement fuel consumption is a common situation, but not absolute. Because many problems seem specious, misunderstanding need special attention. Understand that these errors may not only affect future driving habits, and may even change some accustomed ideas.
A misunderstanding: the low speed high gear can fuel?
Want to run car oil consumption can not see fuel-efficient ten errors
Low gear driving will consume more energy, so the high gear low speed seems to be a lot of automatic owner's habitual behavior, that this approach can achieve the effect of saving. There is no basis for this.
Any car in the factory will indicate the economic speed of the car. Skilled owners in the shift usually let the passengers are difficult to detect, very smooth, it indicates that the engine speed and the speed of very accurate grasp. Any of these two factors are not accurate, will cause fuel waste. Specifically, a low gear driving at high speed or low speed high gears are fuel-efficient errors.
Misunderstanding two: add less fuel oil?
Want to run car oil consumption can not see fuel-efficient ten errors
The fuel consumption and weight is correct, but so many owners refueling when considering this factor and with as little as possible. Theoretically this practice is understandable, but the reality is not the case - mainly due to oil.
Although the same oil label, but different periods of oil quality or subtle differences. In the process of use, frequent refueling will lead to inconsistent oil quality, resulting in inadequate combustion in the engine, both affect the vehicle's power, but also increased fuel consumption. Relative load Limited fuel weight, this practice is not scientific.
Misunderstanding three: coasting to fuel?
Want to run car oil consumption can not see fuel-efficient ten errors
In the downhill road or decelerating conditions, many automatic owners used to hang gliding gap, think this practice is efficient, in fact. Idling travel not only violate the traffic ban on the EFI engine car instead of oil. At present, most of the control systems of the EFI engine with a slow reduction in oil or oil cutting function, this kind of car with high speed sliding block can rely on its own design, achieve the effect of fuel-efficient, if the design of neutral glide, would not achieve its due role, in fact the car but more cost of oil.
Misunderstanding four: no air conditioning can fuel?
Want to run car oil consumption can not see fuel-efficient ten errors
When driving air conditioning need to consume more energy, but this situation is not absolute, need to do specific analysis.
At low speeds, no air conditioning is better than air conditioning oil. As mentioned above, the factors related to fuel consumption, the drag coefficient is a need to consider the conditions. Open the windows while driving will make the car to change the drag coefficient. A lot of the car when the speed exceeds 80 km / hour, the fuel consumption of the drag coefficient increases brought about more often than to open the sealed compartment air conditioning to increase fuel consumption.
Misunderstanding five: advance is really efficient?
Want to run car oil consumption can not see fuel-efficient ten errors
Many owners used to start the car after the first car for a period of time, that is the car of the road, but also can achieve the effect of fuel-efficient driving. This practice is also one of the misunderstanding.
With the development of automobile industry, recently launched a new car in technology has been greatly improved, no longer is advocated in advance. In fact, this approach costs oil time-consuming, there may be direct damage to the car. A group of related survey data show that in the new models in recent years, some wear parts of the engine, there are about 90% are caused by 3 minutes in the car after the cold. The heating time should not be too long can save fuel, but also conducive to the car.
Misunderstanding six: temporary parking stall can be fuel-efficient?
Want to run car oil consumption can not see fuel-efficient ten errors
Turn off the car does not work is sure to fuel, but there is another problem: every time you start the engine instantaneous fuel consumption is very large, usually about 20% higher than the normal working state, which is, consumption can not be generalized.
Some owners like to turn off the car in a short time parking, and now may want to consider the residence time. In addition, the engine as the heart of the car, multiple flameout, start is bound to reduce its service life.
Misunderstanding seven: saving products really effective?
Want to run car oil consumption can not see fuel-efficient ten errors
At present, there is no exact standard to evaluate the effect of fuel-efficient fuel-efficient products, the best is to take a cautious attitude.
Many car manufacturers in the engine development, vehicle development process, attention has been paid to the problem of fuel-efficient, with reasonable fuel saving device for a lot of cars at the factory, the modification is easy to "come home shorn". Now on the market of the oil product variety, not a principle. This product is best to take a cautious attitude, do not superstitious propaganda effect. According to the survey, due to the installation of "saving device" and the damage to the car is not uncommon, but has no obvious effect on saving oil.Misunderstanding eight: manual more fuel-efficient than automatic?
Automatic manual transmission ratio seems to be a lot of fuel-efficient car roots deeply rooted concept. Now may be a little changed.
In the past, the concept of automatic blocking is largely limited to the general four front speed automatic block. In the rapid development of automotive technology today, five speed automatic block, the six speed automatic block or even a seven speed automatic gear has been equipped with some new cars, gearbox gear ratio design has therefore undergone some changes. Than the manual automatic fuel-efficient claim has not a scientific claim.
In addition, because the driving skills and driving habits of different, manual models than the automatic vehicle fuel consumption is also likely.
Misunderstanding nine: the smaller and more fuel-efficient engines?
Want to run car oil consumption can not see fuel-efficient ten errors
In general, small cars than large cars less fuel consumption, but this is not absolute. Many large displacement models due to the use of lightweight body, but also equipped with advanced engines, etc., the actual fuel consumption is not high may be less than the small displacement cars. This is a comprehensive consideration of the results.
Misunderstanding ten: the more the more power consumption?
High power, high torque is easily reminiscent of high fuel consumption. In fact, this has a great relationship with the manufacturers of vehicle tuning.
Some advanced engine technology, the power output is very smooth, linear, in the common speed range can reach maximum output power and peak torque, fully support the car running. In this case the car will not imagine high fuel consumption. On the contrary, the situation is not rare small horse carts, due to lack of power, fuel consumption actually rose straight.