The car depends on the efficiency of the engine. The purity of the system determines the characteristics of dynamics and speed. Also, the condition of the fuel system has a significant impact on fuel consumption.
Not everyone can see faults in time. Technical characteristics, which decrease over time, do not particularly affect the quality of driving a car. But it will take some time, and various breakdowns may occur. This is a reflection of the situation with the fuel system of the car. It is very important to know what is the frequency of replacing the fuel filter on a particular car.
Indeed, in these very details, the fuel is cleaned, which significantly increases the efficiency of the engine. Over time, filters do a worse job of cleaning.
Causes of typical malfunctions
Many car manufacturers seriously argue that a modern car can work throughout the entire car. However, in reality, such a result is simply impossible to achieve. If filters can work for so long, then only in a sterile laboratory. The quality of the fuel supplied to gas stations in our country is, frankly, low. And there can also be found various debris, which does not have the best effect on the fuel system. So, garbage and dirt is the cause of all problems with the car.
What is the interval for replacing the fuel filter?
On average, modern automakers recommend replacing filters every 30,000 km. run. Many motorists who have come to this through observation and experience are guided by the same figure. The signal to change the filter is the engine, which "troit" or stalls.
Naturally, not everything is always so clear. And if you refuel at those filling stations that offer high quality fuel, have a more careful driving style, rarely drive on country roads, then you can significantly increase the frequency of replacing the fuel filter. But this is exactly what happens quite rarely.
Three Signs of a Clogged Fuel Filter
It's time for you to change it if your power package is no longer running as smoothly as a new one, if you notice a sharp drop in power, if fuel consumption has increased significantly compared to nominal at this time of the year.
If pollution is only at an early stage, then these problems will not be so obvious. Beginning drivers may experience certain difficulties, experienced ones, of course, will notice all this in time.
If the degree of pollution has reached the maximum stage, the motor simply will not start. 
And in addition to replacing filters, the owner will have to flush the motor. If you miss this moment, repairs can be very expensive.
Diesel engines
Replacing the fuel filter on a diesel is a big separate story. It is represented here by several components. So, there is a coarse filter, fine filter, as well as a special separator. All these components of one large cleaning complex have different functions, but they can be placed in a single housing.
The function of coarse filters is to purify diesel fuel from rather large impurities. And what is interesting, you will not find these in the fuel system of passenger cars, but they are on trucks and various agricultural vehicles.
Separator filters are used to purify fuel from water. This element is somewhat reminiscent of a sump. Here, the diesel is sent up, and the water accumulates at the bottom, and then leaves through the drain.
Details of fine cleaning are used for maximum cleaning of the solarium from the smallest fraction. In most cases, this element is clogged.
Motorists claim that the replacement of the fuel filter on a diesel engine is carried out much more often than on similar gasoline cars. And there is also an opinion that replacements are necessary in the winter.
Why in winter?
Here's why. The water that accumulates in the separator freezes at low air temperatures. 
This is not the best way to affect the flow of fuel. And instead of a winter diesel intended for winter, they like to purchase summer trains. And in this summer solarium, paraffin is released at low temperatures. He clogs the filters.
Car owners with experience carry an additional spare element with them in the winter, so that in the event of a clogged old one, they can quickly install a new one.
Diesel loves maintenance
In order for the diesel engine to work at the peak of efficiency, it is recommended to replace the filters after 8-10 thousand km. Well, you still need to drain the settled mass from it. It is not worth replacing with a shorter frequency. Clogged filters can create elevated levels
"Hyundai"
If you look at the passport of a car of this brand, then manufacturers recommend replacing elements every 60 thousand km. Maybe this is a real figure for Europe, but our realities significantly reduce the frequency.
So, on Russian fuel, the Hyundai fuel filter is replaced every 30, or even 20 thousand km. If with such gasoline the replacement was carried out according to the regulations, many cars of this Korean manufacturer would not have survived to weekdays. Perhaps somewhere the filter is really changed after 60 thousand, but this is not about our country.
If we talk about the Hyundai Solaris, then the figure of 60 thousand kilometers can be trusted, because the Koreans produce it in St. Petersburg and know the situation firsthand.
In this car, to replace it is necessary to remove the rear seat. Under which you can find the fuel module cover. 
Below it is a pump and filter. Replacing it with your own hands is very simple.
For diesel Hyundais, the current figure is 10 thousand km. This is the life of the fuel filter.
"Opel"
This manufacturer is known for its high-quality and fairly hardy cars. In the line of models there are both cars with diesel engines and with gasoline engines.
The passport data indicates that for elements that are not integrated into the fuel tank and do not form a single whole with the gasoline pump, the Opel fuel filter is replaced every 30,000 - 45,000 km. This will save power units from increased wear.
In addition, you need to regularly drain water from diesel filters, then everything will be fine with the engine, and the car will please its owner for a long time.
Chevrolet
Cars of this manufacturer are very popular. Often, novice motorists ask questions about the frequency of replacing filters and other consumables. So, the manufacturer in the documentation for the cars indicates that the replacement of the Chevrolet fuel filter should be carried out at least every 25-30 thousand km. This figure is already much closer to our reality.
It is worth considering that when driving on dusty, country roads, you can clog the filter much faster than 30 thousand km.
Timely replacement of filters will not only protect your engines from breakdowns, but also allow you to get great pleasure from driving a car.
"Nissan"
The fuel in its composition contains many different heavy metals, additives and other impurities that can cause early wear of the unit or parts of the fuel system. The relevance of this element in the cars of the Japanese manufacturer is simply invaluable.
With high-quality fuel, the Nissan fuel filter can be replaced no more than once every two years of active operation of the car. But in practice, even if the Japanese recommend performing this operation after 40 thousand km, it is necessary to change the filter after 30 thousand. And this is the maximum in our realities. 
Yes, there are 30 thousand, even this frequency is not so unambiguous. This topic causes constant controversy in automotive forums. This can be explained by the fact that if the manufacturer proposes to replace after 40 thousand, then after 5 thousand the efficiency and power of the engine drops sharply. This suggests that the filter is clogged disproportionately to the mileage of the car.
How to determine what should be the frequency of replacing the fuel filter? The fuel system has a filter element. Dirt lingers on it. A vacuum is obtained between the pump and the filter, which increases with the level of pollution. Therefore, the replacement should be carried out at the time of the appearance of this very vacuum.
On Nissan models, there are special sensors for this. Professionals say that special indicators are installed on Nissan injection engines to help determine the level of pollution.
"Kia"
Everything here is similar to Hyundai. The replacement of the Kia fuel filter should also be performed at intervals of 20-30 thousand kilometers. But you need to focus on how the car drives. If efficiency and dynamics have fallen, there will be a replacement.
"Toyota"
According to the manufacturer's recommendation, the Toyota fuel filter should be replaced every 80 thousand kilometers. The filter is located in the gas tank. To access it, you need to dismantle the rear seat cushion.
But such a huge figure is relevant only for the original filters. 
Those that are sold with us rarely work out even 30 thousand. And our fuel makes the figure of 80 thousand simply unrealistic. Listen to your car, you will know when the filter needs to be replaced.
"Ford"
The manufacturer recommends changing filters every 20,000 miles. This figure is closer to reality. The Ford fuel filter must be replaced at every scheduled maintenance. In various cases with Mondeo and Fusion, it is recommended to replace after 15 thousand km.
