Renault Logan which gasoline is better to pour into the engine

Let's decide for Renault Logan what gasoline to fill in the car: 92 or 95, if both options are allowed. Of course, all people have their own opinions, but it’s still worth listening to the manufacturer’s recommendations and the advice of experienced drivers.

What happens if you fill with gasoline that does not comply with the manufacturer’s recommendations?

As it became clear, the Renault Logan car needs to be filled with AI-92 gasoline.
However, if you fill it with AI-95 or 98, nothing fatal will happen right away. But due to the fact that the octane number is higher than the recommended one, the duration of fuel combustion increases, and this increases heat transfer. This leads to overheating of the valves and all internal parts of the engine, which in turn leads to increased oil consumption.

Therefore, such a harmless procedure as using gasoline with the wrong octane number can lead to serious engine damage.

If the car engine is not running stably or stalls and does not start (maybe the starter is to blame?), and the “check engine” icon is displayed on the instrument panel, then do not rush to blame the quality of the fuel. Check the air filter, it may be clogged. Similarly, the fuel filter could become clogged.

More useful:

What's the best way to refuel your car?

In modern high-tech cars, the operation maps of the fuel supply and ignition systems are quite wide. This allows the engine control unit to independently adapt to changes in the octane number of gasoline (for example, from 95 to 98 or 100), which in certain modes can give an increase in torque compared to running on the recommended fuel. But the range of these capabilities is different for each engine. It is quite wide for those engines that are used in sports cars, but for engines intended for mass-produced cars, it is much smaller. When testing a highly accelerated engine, we received a 10-15% increase in torque at 2500-4500 rpm on 100-grade gasoline compared to the base 95-grade gasoline.

There is a stereotype among car enthusiasts that if the engine is not initially designed for high-octane gasoline, then thermal disturbances and other troubles are possible. However, a motor designed for use with AI-92 will work perfectly with AI-100. Since the calorific value of all types of gasoline is approximately the same (the difference is comparable to the error of laboratory measurements), there will be no noticeable increase in power from using gasoline with a higher octane number. The need and sense of using high-octane gasoline is only on forced engines with an increased compression ratio, extreme ignition timing, etc. Here, a regular 92 or 95 will produce monstrous detonation with serious consequences.

You won't be able to turn your old car into a race car using high-octane gasoline. On the other hand, there is no danger of burning the valves in the engine. For example, the octane number of propane-butane, on which most cars run, is approximately 105. If you fill the gas tank of a regular state employee with the 100th gasoline (not turbo and without improved characteristics), you most likely will not feel the difference, and fuel costs will increase significantly.

Choosing gasoline for Renault Logan

Both power units have good performance. But they have a certain drawback. When driving around the city for 100 kilometers, one engine consumes 9.8 liters, and the other 9.4 liters of fuel. Therefore, the question of what kind of gasoline can be poured into Renault Logan 1.6 does not arise by chance. It is especially acute now when the cost of fuel is rising.

You can trust the recommendations given by specialists from official representatives of the Renault brand. They responsibly declare that a car of this model can be refueled with three types of fuel:

The service adds that you can only fill with unleaded gasoline. But this addition is unnecessary, since leaded fuel is not currently produced.

It may seem that more expensive types of fuel: AI95 or AI98 will allow you to increase power and add dynamics. But experts say that refueling with these brands of fuel will not affect technical performance. Therefore, there is no point in spending extra money.

The main requirements are for the quality of gasoline. Every car owner knows how great the risk is of purchasing fuel that does not meet the standards. Therefore, it is necessary to purchase gasoline only in reliable, trusted places. In every city you can find more than one such gas station.

Low octane fuel: what to expect from a car

Contrary to the manual, many drivers fill Renault Duster with grade 92 fuel, believing that this provides significant savings. In fact, this is an erroneous reasoning, because with a slight difference in price, the consumption of fuel fluid with different octane numbers will not be the same. For 100 km, Renault Duster uses 2-3 liters more 92-grade gasoline than 95-grade gasoline. As a result, you won’t be able to enjoy the savings, but it’s very easy to get yourself into trouble.

Let's start with the fact that when using grade 92 fuel, the car's engine will become polluted faster and more intensely.

This means that its lifespan will be shortened. Even with very careful care, you will have to visit the service station much more often, and this is an additional and very significant expense. In addition, using fuel with a lower octane number increases the risk of engine detonation and fire. That is, in addition to financial costs, you yourself reduce the degree of personal safety on the road.

And yet there is one nuance that car enthusiasts have long noticed. It lies in the fact that the compression ratio of gasoline in a Renault Duster with a 1.6 engine displacement is relatively low, and in some cases it is permissible to use grade 92 fuel - a disaster will not happen. But experts still do not recommend completely switching to this fuel, since the engine will first have to be cleaned and then completely replaced.

Vote

What kind of gasoline do you fill in Renault Logan?

• 92 gasoline Source(62%, Votes: 1,403)

Total voters: 3.5 267

Based on survey data that was compiled between owners of the Renault Logan car:

• 66% of respondents fill in 92nd,
• 32% – 95th,
• and only 2% 98 octane gasoline.

In this way, there is an option to realize that the absolute majority of respondents adhere to the rules established by the factory and are concerned about the condition of their own engine. Others think that they are increasing the power of the engine - in reality they are reducing its resource, but they do not significantly reduce fuel consumption.

The best ratio of price, equipment, reliability and fuel consumption belongs to Renault Logan based on the 16-valve K4M with a manual transmission (both 1st and 2nd generations). For those saving gas, it is better to refuse an automatic transmission - the consumption of such models is unforgivably high.

The 8-valve K7J and K7M are reliable, but do not produce power adequate to flow. These engines vibrate and make noticeable noise. The H4M has a timing chain drive and reduced gasoline consumption, but lacks a phase regulator, and its service life is 150,000 km shorter.

First generation

The first generation Renault Logan was produced from 2004 to 2016. Early models were equipped with 8-valve single overhead camshaft (SOHC) engines and 5-speed manual transmissions (MT-5). There were 1.4 and 1.6 liter engines available to choose from. Gasoline consumption in the 1.4 modification is the lowest - 5.5 liters. on the highway, 6.8 in the combined cycle, and in the city this figure is 9.5 liters. Naturally, these are the data declared by the manufacturer.

In 2008, the car underwent a restyling; a 16-valve 1.6-liter engine with double overhead camshafts (DOHC) joined the lineup. The same 5-speed manual transmission or a 4-speed automatic transmission with a torque converter (AT-4) was supplied with the engine.

Technical characteristics of the first generation Renault Logan

The K7J engine turned out to be the most popular and repairable. Models with eight valves work stably on AI-92; it is recommended to use AI-95 in a 16-valve model.

Environmental standards of first generation engines

One and a half liter 8-valve dCi diesel engines and a liter 16-valve petrol engine were not supplied to Russia.

Engine characteristics

On engines of the 1st edition the following was installed:

• cast iron cylinder block;
• aluminum cylinder head;
• aluminum pistons;
• cylinder head drive in the form of a toothed belt;
• liquid cooling;
• multipoint fuel injection.

Engines with eight valves are not demanding on oil quality. The engines provide a total mileage of 400,000 km with regular replacement every 7,500 km. K7J and K7M were assembled in Romania, K4M - in Russia.

The K7J is a continuation of the ExJ line produced by Renault in the 80s. Four working pistons in an in-line vertical arrangement, 2 valves per cylinder. Combined lubrication system. An archaic design that overestimates gasoline consumption with meager power indicators:

• timing rocker arms and chain drive of the oil pump, which were used back in the 60s in units with lower camshafts;
• There is no phase regulator or hydraulic compensators provided.

K7M is a modification of the K7J with increased piston strokes and a larger flywheel, clutch, and crankcase. There are no other design differences from the younger model. Fuel consumption of Renault Logan in this modification has increased following the volume. The K7M 710 version was produced according to Euro-3 standards, and the engine with index 800 was produced according to Euro-4 standards.

The K4M borrows the cylinder block, crankshaft and flywheel from the K7M. The installation used a new cylinder head with 16 valves and 2 lightweight camshafts, and a new piston design. We added hydraulic compensators, and in some modifications also a phase regulator. New equipment has reduced the fuel consumption of Renault Logan, increasing the smoothness and power of the engine.

Fun facts

These are the interesting conclusions that experts recently made when trying to understand which gasoline is ideal for VAZ cars. Interesting nuances emerged. VAZ and Renault-Nissan do not have a uniform approach: the same engine installed on different models is suitable for different types of fuel.

So, for Vesta and XRAY with a VAZ-21129 engine, A-92 is allowed, and for similar engines on Priora, Grant and Kalina under the VAZ-21127 symbol, only A-95 is “registered”. For the eight-valve VAZ-11189, the 92nd is officially intended for Largus, and the 95th for the same Kalina VAZ-11186 engine. Question:

Moreover, Renault allows short-term operation on fuel with an octane rating of 87. But there is no such grade in Russia. Although if a not-so-good 92 gets into the tank, the engine will easily cope with it.

Conclusion

What kind of gasoline to fill is up to you, the most important thing is to refuel at proven gas stations. Better yet, I advise you to test your car. Fill up the AI-92 with a full load, measure the fuel consumption, see how many kilometers you can travel on a full tank, pay attention to the car’s dynamics, acceleration, engine performance, etc. After this, fill the full tank with AI-95 and do the same. If you don’t feel the difference, then the choice is obvious.

What kind of gasoline should I put in my car?

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The difference between 95 and 92 gasoline in car dynamics

The AutoReview website checked whether there are differences between 92 and 95 gasoline in dynamics. Two cars were chosen for testing: Renault Sandero and Hyundai Solaris with a more powerful and modern engine. The test consisted of checking maximum speed, acceleration from 0 to 100 km/h, and elasticity (acceleration from 60-100 km/h in 4th gear and from 80-120 km/h in fifth). As a result, we were able to obtain the following data:

The difference in gasoline for Hyundai is small: only 3 km/h at maximum speed and a little more than a second when accelerating from 80-120 km/h. More noticeable differences are noticeable in the Renault car, where 95 gasoline allowed the maximum to reach 8 km/h. more. The difference in dynamics became even more noticeable at the elasticity stage, when using AI-95 the car accelerated 7 seconds faster!

Manufacturer's recommendations

The octane number and overall quality of the fuel are important for engine operation; they primarily ensure the durability and reliability of the engine. On the gas tank flap in older models there is an inscription about what kind of gasoline Renault Logan uses; it shows that this tank can be filled with any gasoline of fractions from 92 to 98. Only it must be unleaded.

But for the latest Renault Logan models, the manufacturer’s official recommendation is only AI-95.

If it's 92, then only high quality!

At the same time, many drivers argue that, in fact, a higher grade of gasoline does not provide additional dynamics or power, so it would be reasonable to refuel Renault Logan AI -92 if it is of normal quality.

Replacement frequency, what antifreeze to fill

It is recommended to change antifreeze on Renault Logan at intervals not exceeding 90 thousand kilometers.
If the color of the liquid has changed, it must be replaced earlier. If the mileage on the car is not high, then replacement is recommended every three years. The original Renault Glaceol RX Type D antifreeze is suitable for all cars produced by this company. You can also use Coolstream NRC; it has official approval and is also used for filling on conveyors located in Russia.

Sometimes Logan owners use regular G12 or G12+ antifreeze, although the automaker does not make such a recommendation. Therefore, it is difficult to say how they will behave and whether there will be problems when using them.

How much antifreeze is in the cooling system, volume table

Power units of the Renault Logan 1.6 model

The Renault Logan model is equipped with two types of power units with a volume of 1600 ml. These motors have certain differences. What they have in common is the atmospheric type, the absence of turbine supercharging and direct injection. This can only upset fans of maximum dynamics and high speeds.

82 hp unit from the K7M series. The engine has eight valves, four cylinders, an electronic distributed injection control system, and a timing belt drive. The engine allows you to reach speeds of up to 172 km/h.

102 hp motor from the K4M series is equipped with two camshafts, sixteen valves, which guarantees higher output. This engine also has an electronic system that controls injection and a belt drive. Maximum speed – 180 km/h.

Interesting! Do you want to know where Renault Logan is assembled? (click)

Fuel pump

A complex device that provides the following functions:

• purification of gasoline from impurities;
• dosed supply of fuel to the injectors;
• taking excess fuel back into the system.

The Logan fuel pump is driven by an electric drive, controlled by the vehicle's ECU. How much gas you give, the injector will spray gasoline into the combustion chamber.

The rationale for its location in the tank is due to the fact that the possibility of vapor locks is reduced, since fuel is supplied not as a result of vacuum, but by the force of discharge pressure.

The tank pump also includes a regulator that provides the necessary fuel pressure throughout the entire central rail in any operating mode of the power unit.

Renault engineers included a gasoline level sensor in the fuel pump. It is a familiar system of a float with a holder and a variable resistor, which fixes the electrical resistance in different positions of the float and transmits them to the fuel presence indicator.

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This is a very simple and reliable tank system, which, unfortunately, allows for significant errors. Because of this, motorists often have disputes about topping up and underfilling at gas stations, as well as among themselves about the actual capacity of the Logan gasoline tank.

You can get to the Logan fuel pump by removing the rear seat seat and opening a special access hatch. There is an arrow on the hatch indicating the latch that should be used. Press it with a screwdriver and the hatch will open. Move the cover to the side and access to the pump will be open.

Results

The 2 most basic and important rules are to fill with gasoline recommended by the manufacturer and refuel the car at trusted gas stations and from a trusted oil company that are responsible for the quality of their fuel.

Although the manufacturer says that AI92 can be poured. I still only upload AI95. Even by ear, the engine operation is different with this fuel.

It never occurred to me to fill it with 98, but usually I fill it with either 92 or 95, I don’t feel any difference.

When I bought the car I filled it with 95, and six months later I started driving it with 92. I don't feel any difference. I think 95 is even more profitable

I never understood why they would put 95 in a car of this class! It will give nothing but unnecessary spending. This is not a sports car!

It will increase the service life of the engine and catalyst.

Agree. The catalyst failed only at 185,000 mileage and 12 years of operation only on 95 liter gasoline. I doubt that it will also be on 92m

There is an opinion that the highest quality gasoline at our gas stations is AI-92. If so, then the choice is obvious.

What a sheep wrote the article!

Good afternoon, what’s wrong with the article?

What is the article actually about? “As it became clear, the Renault Logan car needs to be filled with AI-92 gasoline. However, if you fill it with AI-95 or 98, nothing fatal will happen right away.” How did this, excuse me, become clear? The new Logan must be filled with AI-95.

Nothing fatal will happen on the old Logan, either immediately or later, because the manufacturer allows all three types of fuel. For the “especially smart”, there is a hint on the hatch cover. But what will happen to the new Logan if AI-92 is poured into it, nothing about that in the article.

I’ll repeat my question once again: what is the article actually about? About the fact that most of the old Logans drive on 92 gasoline because it is cheaper? With the same success, one could write an article about the fact that the sun rises in the east and sets in the west, birds fly and fish swim.

And then organize a vote on who agrees with this. And of course, only a “technical specialist” is capable of this. I hope you have given yourself this honorary label as a tattoo on your forehead, so that anyone from afar can appreciate the breadth and depth of your immense knowledge.

The article says that if you fill it with 92, nothing bad will happen. All our editorial gasoline cars run on 92 gasoline. Considering the quality of the 95th in our country (RF), the question is, which is even better. If the article had written about pouring 80 or diesel, then yes, there would be questions. This idea was in the article, it may not have been explained very well, let’s rewrite it.

P.S. That the quality of gasoline in our country is poor, and that it is better to pour 92 at some moments.

Konstantin is right in pointing out the shortcoming - the article is about nothing, the author of the article has no technical competence or experience in the industry. Idle talk.

A technical specialist, please explain: what is the reason for the 1.6-82 hp in the new Logan? 95-98?

It’s not clear why, if the factory recommends one of 3 options, then 92 should be poured. If 95 and 98 s reduced engine life, the manufacturer would indicate only 92.

You are absolutely right, Tatyana, and the 95 in our vastness at proven gas stations is really good.

In fact, everything is simple - if the compression ratio of the engine is up to 10.5, you can safely pour 92 gasoline, as it is cheaper. If the compression ratio is, for example, 11, then pouring 92 gasoline is not recommended due to the risk of detonation. But as they say, the master is the master, everyone has their own head on their shoulders.

You are the most literate among all couch comminators)))

To be honest, I agree that the article is useless.

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Renault Sandero 2013, 84 l. With. - gas station

Most likely I will “feed” her gasoline. When leaving the salon I filled up 10 liters of gas.

But we were more cheerful. Up to km only 95 was refueled at Lukoil.

Three days ago I refueled for the first time at Ecto, also Lukoil. I felt changes immediately, the car became sluggish, consumption increased. Sandero Stepway car 1. In continuation of the dialogue, what is the best way to refuel, I can offer my thoughts on this matter.

Last year I made some calculations obtained by calculation and analysis - as a result, it turned out that on the highway it is preferable in terms of fuel economy, and this year I decided to check whether last year’s data was confirmed or refuted using a graphical method. Fortunately, for this purpose, through the common efforts of members of the forum, a certain toolkit was developed that allows, as it seems to me, to fairly reliably draw an average line from a statistical data field or cloud.

A little about the methodology for obtaining data. In fact, the experience of thousands of Stepway owners who pour tons of gasoline into their gas tanks suggests that if you fill your car with this type of fuel, nothing bad will happen to it. Moreover, nothing bad will happen to it, even if you always fill up with gasoline. It is also noteworthy that representatives of some Renault dealerships, answering questions about the possibility of refueling second Stepways with AI gasoline, confidently say that this can be done without any consequences for the car.

This is especially true for eight-valve engines.

These units are not too demanding on the quality of gasoline and will forgive you even if you feed them downright nasty stuff bought at some NoName gas station. Sometimes you even have to slightly release the gas pedal, because the car continues to accelerate when, as before, it was simply moving at a stable speed.

And several times I noticed that the engine started faster, which I was even surprised at, since I had never heard of such a thing. I rolled out onto the highway, on the way to the garden, where I took the same measurement of consumption. I also refueled at Lukoil and the sound disappeared. And I like the smell of go at Lukoil better: The car didn’t run well.

The first year I spent on Sandero, I refueled at Tatneft as always. A year and a half later, during maintenance, I cleaned the injector. Maybe they got scammed, of course. And they also recommended pouring it and not bothering. The car drove a little harder and wasn’t as playful, although there were no changes in fuel consumption.

Which gasoline is better 92 or 95?

And since a day leaves me from