UAZ Patriot oil for engines 2.2, 2.3, 2.7, how much and what kind is required?

UAZ Patriot is one of the leaders in sales in Russia among all-wheel drive SUVs. And this is not surprising. The car can withstand any, even the most extreme operating conditions.

Several generations of UAZ Patriot are known on the modern market. The latest models have received the maximum number of positive reviews from car owners due to all-wheel drive, high ground clearance, frame construction, the ability to lock the rear axle differential and other advantages.

When assembling the UAZ Patriot, modern equipment and high-quality finishing materials are used.

This and much more makes driving a car comfortable and safe, allows you to drive on roads of different categories, and also easily overcome off-road conditions.

The most modern generation of UAZ Patriot has several trim levels: classic, optimum, prestige and maximum. The SUV is equipped with a ZMZ-40906 four-stroke gasoline engine and a five-speed manual transmission. The car's fuel consumption is low for this category of transport - in the city it is 14 liters, on the highway - 11.6 liters per 100 km.

The key to stable operation of the UAZ Patriot is timely replacement of consumables. Let's figure out where and how much to fill.

UAZ Patriot refueling tanks

The design of absolutely every modern car necessarily requires the presence of a power plant, tank, gearbox, and other units and various parts that have their own volumes. It is in these same volumes that diesel fuel is placed, as well as brake fluid, of course, gasoline or antifreeze, but all the fluids listed for each individual model are individual. We invite you to learn in detail about the filling tanks on the UAZ Patriot, which is popular in our country, plus we’ll look at what they essentially are and how much this car model requires to fill certain mechanisms.

Purpose of the liquid

Previously, ordinary or distilled water was used in the cooling system of cars. Unfortunately, using ordinary water leads to unpleasant consequences, in particular, its freezing in the system leads to serious damage. A coolant called antifreeze or antifreeze is poured into the UAZ Patriot SUV, as indicated in the vehicle manual. It is antifreeze and antifreeze that are those liquid substances that contain many different substances that ensure non-freezing at sub-zero temperatures, and at the same time stable heat removal from the car engine to the radiator.

The radiator, in turn, is a container that cools the incoming liquid with an air flow. Thus, the coolant circulates through the system, thereby removing heat from the engine and protecting it from overheating. If the engine overheats, it will seize, which is why all cars, including SUVs, have a temperature gauge on the dashboard. If the temperature rises above 100 degrees Celsius, you should immediately stop and find the cause of this phenomenon.

Replacement features

Probably, more than once, every driver has wondered how often the coolant needs to be changed? Just like all fluids in a car, antifreeze and antifreeze must be replaced, as over time they lose their original properties and can malfunction. On an SUV, it is recommended to change the coolant every 60,000 km. Such a replacement is recommended in order to avoid clogging of the channels, so let’s consider what this process is.

Before you start replacing, you need to purchase coolant for your SUV. There are quite a few types of coolants and which product to give preference to is everyone’s right. But, of course, it is not recommended to purchase the most budget options, since they most likely contain cheap types of dilutions. How much antifreeze is needed for a UAZ Patriot SUV? The amount of coolant in the UAZ Patriot system is 12 liters, but when replacing it is not always possible to drain all the liquid completely. Therefore, it is better to purchase a 10-liter canister, and then buy another liter or two if the need arises. Drivers often encounter a problem when replacing antifreeze leads to the fact that the system only holds 5 liters. In fact, when pouring coolant, air pockets are created that limit the complete filling of the system. Therefore, let’s look at how to properly replace the coolant and what you need to know.

Drain the liquid from the block through the tap

Replacement

Replacing antifreeze on a Patriot is not particularly difficult, but it is important to be consistent. The only replacement tool you need is a 14mm wrench. The replacement process is as follows:

1. Initially, the stove regulator should be moved to the extreme right position all the way. The regulator is located in the cabin on the dashboard near the heater switches.
2. Now you need to open the hood and unscrew the cap on the expansion tank.
3. The motor protection is removed. It is impossible to drain antifreeze with installed protection.
4. To drain the liquid, you need to unscrew the radiator cap (bolt at “14”) and place a special container.

• The valve on the ZMZ-409 engine block of the UAZ Patriot SUV opens. After opening the tap, coolant will drain from the engine. For ease of draining, you can attach a hose of suitable diameter to the tap.
• It is necessary to drain all the antifreeze, since its residues will have an adverse effect when mixed with new antifreeze.
• After the liquid has drained, screw the cap on the radiator and close the valve on the engine block. There are special liquids for flushing the system, which can eliminate all accumulations and blockages. But it is recommended to use them in cases where the fluid has not been replaced for more than 60,000 km. Rinsing can also be done with ordinary water.
• Antifreeze is being added. Antifreeze is poured into the expansion tank until the liquid reaches the mark between Min and Max. In this case, you can fill no more than 5-6 liters into the system.
• Now you need to start the engine and let it run for some time (up to 5 minutes). During this time, the liquid will displace all air pockets, and the level in the tank will decrease. After the level drops, you need to add antifreeze to the appropriate mark and screw in the plug.

This completes the replacement process, and after a while you should re-check the antifreeze level in the system. If it decreases periodically, then you should look for the cause of the leak.

Changing coolant on a car is only done when the engine is cold (as opposed to engine oil), so take this into account.

To summarize, it should be noted the importance of coolant on a UAZ Patriot car. If during operation the radiator was damaged and all the coolant leaked out, you can replace it with water to get home. Therefore, periodically check not only the engine oil level, but also the antifreeze level in the cooling system.

All filling capacities of the Patriot SUV

Everyone knows that filling tanks are units that require the presence of working fluid. By the way, the UAZ Patriot is equipped with two refueling tanks at once, and this allows the SUV to fill almost 2 times more fuel, almost up to 80 liters. Not all cars in this class can boast the same gas tank design.

The refueling volumes in the SUV we are considering are determined by the following parts and mechanisms:

• Auto clutch system;
• Transmission;
• Power unit lubrication system;
• Transfer case;
• Gasoline tanks;
• Power steering mechanism system;
• Window washer pump reservoir;
• Engine cooling system 409;
• Brake system;
• Carters of 2 bridges.

Regulations

Based on factory requirements, the oil should be changed every 10,000 km. If the car is used moderately, the period should be 12 months. Whatever comes first is the indication for a change. Such requirements must be met when using high-quality fuel and operating the vehicle in favorable conditions.

In reality, things are different.
Fuel quality rarely meets the standard, and the car is used on difficult roads. The indicators are adjusted as the lubricant service life is reduced. The recommended interval is 7000-8000 km.

What fluids are needed for Patriot to work?

The domestic UAZ Patriot, which has a 409 engine, and a number of other cars that are similar in their mechanisms and design, are required to have the above-mentioned refueling tanks, which are presented in the form of tanks made of plastic and located in various units. It is in such devices that different working fluids are located. Check out the list of working fluids present in the UAZ Patriot:

• Transmission and engine oils are filled into the power unit, transfer case, as well as gearboxes and axles.
• Antifreeze or antifreeze is required for heating the interior and cooling the engine;
• Depending on the design of the power plant, diesel fuel or gasoline.
• Liquid intended for glass washers, poured into the rear and windshield washer reservoirs.
• Brake fluid is poured into the clutch system, plus into the brake mechanism.

Next, we will present the digital values ​​according to which it is necessary to fill certain working fluids into the corresponding mechanisms and units.

Replacing engine oil and oil filter ZMZ-409

Previously, the plant recommended changing the engine oil every 10,000 km, but now it has raised the bar to 15,000 km. or after 12 months, whichever comes first. If the UAZ is operated in difficult conditions, then the interval between replacements is recommended to be reduced by the factory. Oil drain

is produced on a warm engine, in this case it has a lower viscosity and flows out well. To change the oil, you need to park the car on a level surface, open the oil filler cap of the valve cover and unscrew the engine oil sump drain plug. The oil drains for at least 10 minutes.

After draining the oil, before screwing in the oil sump drain plug, you need to check the condition of its sealing gasket. Replace the damaged gasket with a new one. Oil filter

. At the same time as changing the oil, the oil filter must be replaced. Before installing the filter, lubricate its rubber gasket with engine oil. Screw the filter onto the fitting until the rubber gasket of the filter touches the surface of the thermal valve and then tighten it by hand 3/4 of a turn. When changing the oil filter, you need to check the tightness of the oil filter fitting and tighten it if necessary.

Fill with fresh oil up to the upper MAX mark.

on the oil level gauge, install the oil filler cap on the valve cover, and then start the engine. After turning off the emergency oil pressure indicator lamp, stop the engine and make sure there is no oil leakage from under the filter gasket. Allow the oil to drain into the crankcase for 10 minutes and check the oil level again, adding if necessary. The amount of oil from the MIN mark to the MAX mark is approximately 1 liter.

Mixing different motor oils in the ZMZ-409 engine

The plant directly prohibits mixing motor oils of different brands and companies; in this case, good performance properties of the mixture of oils cannot be guaranteed, since they can significantly deteriorate due to possible incompatibility of additives included in different oils. When switching to oil of a different brand or company, Flushing the ZMZ-409 engine lubrication system with flushing or replacement oils is mandatory. To flush the engine lubrication system, you must:

1. drain the used oil from the crankcase of a warm engine
2. fill in special flushing or replacement oil to 2-4 mm. above the upper MAX mark of the level indicator
3. start the engine and let it run at minimum crankshaft speed for at least 10 minutes
4. drain special flushing or replacement oil
5. replace oil filter
6. add fresh oil
7. start the engine, after turning off the emergency oil pressure lamp, stop the engine and after 10 minutes check the oil level, top up if necessary.

Patriot SUV refueling volumes

For UAZ Patriot, which has a 409 engine, refueling volumes have the following values:

• 5l. fluid is required to fill the windshield washer reservoir.
• Fuel tanks: the tank on the right and the tank on the right have the same volume, equal to 36 liters, this is according to the manufacturer, however, as practice shows, a little more fuel can be filled into both tanks.
• Shock absorbers only need to pour 0.32l. liquids, but you should remember about the devices used in the suspension design.
• Engine lubrication is required in a volume of 7 liters, and for the UAZ Patriot 31631 model the volume of lubricant is 4.2 liters.
• The brake mechanism needs 0.6l. working fluid.
• For a radiator with horizontal pipes, 14 liters will be required. liquids, and for heating the interior and cooling system of the power unit - 12 l.
• The clutch drive needs 0.18l. liquids.
• A manual transmission will require 2.5 liters.
• For the steering mechanism we measure - 0.25l.
• 0.8 l is poured into the transfer case.
• Power steering consumes 1.1l. working fluid, for the UAZ Patriot 31631 model you will need 1.3 l.
• As for the rear and front axles, their filling tanks require different amounts of fluid. The front axle requires 1.5 liters of oil, and the rear axle requires 1.4 liters of oil. As practice shows, it is necessary to fill slightly more than 1.4 liters into the rear axle housing. oil so that all the working elements inside are completely covered in lubricant.

How much oil is in the box of UAZ 469

Technical properties of the UAZ 469 car

The Russian SUV that is still popular today

The UAZ 469 all-terrain vehicle, which appeared in our country in the early 1970s, remained the best Russian jeep for a long time. Thanks to its high reliability, maintainability in field conditions and low price, this unpretentious hard worker still remains the standard all-wheel drive vehicle for many.

Really, what other car can you fill with a cloudy brownish liquid called A-72 gasoline, used motor oil and castor oil instead of brake water, and then drive our entire majestic country from end to end without ruining the engine and brake system. Changing the oil in the Renault Logan gearbox. The technical properties of the UAZ 469 are unique; they allow this jeep to be operated in conditions that would kill any other car.

The “goat” also has some drawbacks, namely, a tarpaulin awning instead of a regular roof and a weak stove, which make you click your teeth when traveling in the winter season. The answer to the question about how much oil is in the gearbox on a 16-valve VAZ-2112. How much oil to pour when changing? Changing the oil in the UAZ transfer case | car enthusiasts. But they are more than compensated by the understanding of the fact that along the way you won’t get stuck in a snowdrift and won’t freeze your limbs.

Basic characteristics of the body and engine

Brief description of the UAZ 469 (469B):

• body - metal, open;
• type - frame convertible station wagon;
• number of places - 7;
• number of doors - 5;
• length - 4025 mm;
• width - 1805 (1785) mm;
• height - 2050 (2015) mm;
• base - 2380 mm;
• ground clearance - 300 (220) mm;
• weight without load - 1600 (1540) kg;
• weight with full load - 2400 (2280) kg;
• volume of fuel tanks - 78 l.;
• highest speed - 90 (120) km/h;
• ford depth - 0.7 m;
• the greatest climbability with a driver and 1 passenger - 57°;
• the highest climbable height at full load is 31°.

Since the start of production, the UMZ 414 engine has been installed on the civilian modification of the SUV.

Military models were equipped with the same power unit, but with a pre-heater, so the motor has a different index - UMZ 41416.

• type - gasoline, atmospheric, 4-stroke;
• number of cylinders - 4;
• placement - in-line, vertical;
• operating order - 1-2-4-3;
• cylinder diameter - 92 mm;
• piston stroke - 92 mm;
• engine displacement - 2.5 l;
• compression ratio - 6.7;
• power - 75 l. With.;
• highest torque - 167 Nm;
• average gasoline consumption on the highway is 10.75 liters per 100 km;
• the highest gasoline consumption off-road - 17.25 liters per 100 km;
• weight of the UMZ 414 engine with attachments and clutch, but without fluids - 163 kg;
• weight of UMZ 41416 with canopies and clutch, but without fluids - 165 kg;
• volume of cooling water (WW) - 13 l;
• operating coolant temperature - 80-90°C;
• engine oil volume in the cylinder block - 5.8 l;
• normal oil pressure at idle speed is 0.5-0.8 kg/cm³;
• normal oil pressure at speed is 2-5 kg/cm³.

Changing the oil in the box of UAZ 469 79g.v

I decided to change the oil. UAZ 469, 31512, oil change in gearbox and transfer case of UAZ Patriot; Changing the oil in the gearbox and transfer case of the UAZ Patriot. How much oil is in the box of a VAZ-2112 16 valves volume in the gearbox. And this is what I saw. How much oil is in the gearbox of a VAZ/LADA 2110. Changing the oil in a UAZ gearbox | car enthusiasts. The new one was filled with TAD 17.

UAZ Changing the oil in the axle

Report video on Castrol 80w90 GL-5 oil Oil life in the UAZ Patriot gearbox Castrol 80w90 GL-5 Why is it tight.

Under the hood of the 469 model

Features of transmission, chassis and control systems

The unique characteristics of the UAZ 469 are largely due to the successful design of the transmission. This vehicle system consists of a dry single-plate clutch, a gearbox, a transfer case, a rear drive axle, a front axle, and wheel drives for an army modification of an SUV.

• type - 4-speed, manual;
• synchronizers - in 3rd and 4th gears.

• 1st gear - 4.12;
• 2nd gear - 2.64;
• 3rd gear - 1.58;
• 4th gear - 1.00;
• reverse gear - 5.22;
• gearbox weight without lubrication - 33.5 kg;
• The volume of oil in the gearbox is 1 liter.

Transfer case specifications: 2-speed, manual.

• direct transmission - 1.00;
• low gear - 1.94;
• power take-off - up to 40%;
• weight with hand brake, without lubrication - 37.4 kg;
• the volume of oil poured is 0.7 l.

Cardan transmission - 2-shaft, open.

• front - 2-hinge, combined;
• front shaft weight - 6.9 kg;
• rear - 2-hinged, tubular;
• rear shaft weight - 8.25 kg.

• type - detachable, with gearboxes on all wheels;
• gear ratio - 5.38;
• final drive ratio - 2.77;
• gear ratio of wheel gearboxes - 1.94;
• front axle weight - 140 kg;
• rear axle weight - 121.5 kg;
• the volume of oil poured into each bridge is 1 l;
• the volume of oil poured into each wheel gearbox is 0.3 liters.

• type - detachable;
• final drive ratio - 5.13;
• front axle weight - 120 kg;
• rear axle weight - 100 kg;
• the volume of oil poured into each bridge is 0.85 l.

You can distinguish military bridges from collective farm ones in the photo by the conical cap on the splined flange and the double final drive.

• suspension - rigid, leaf spring;
• springs - 7-9 leaf, elliptical;
• shock absorbers - telescopic, double-acting;
• wheels - steel, stamped;
• tires - tube;
• The recommended tire size is 215/90 R15.

• mechanism - worm type;
• gear ratio - 20-21;
• the volume of oil to be filled is 0.25 l.

• type - hydraulic, drum;
• parking brake - transmission;
• liquid volume - 0.52 l.

In general, the control systems of the UAZ 469 are reliable and durable.

Lubricants and working fluids for UAZ vehicles

List of recommended lubricants, working fluids and substitutes for UAZ

Lubricants

1. motor oil
   M-8-V, GOST 10541-78 or M-6z/10-V (DV-ASZp-10V) OST 38.01370-84. Northern automobile oil M4z/6V1 OST 38.01370-84.
2. transmission oil
   TSp-15K GOST 23652-79. Substitute: automotive transmission oil TAP-15V or TAD-17I OST 23652-79. At temperatures below minus 20 °C, automotive transmission oil TSp-10 GOST 23652-79.
3. Lubricant
   "Litol-24" GOST 21150-87, "Lita" TU 38.1011308-90 or "Litol-24RK" (grease SHRUS-4 - an analogue of "Litol" with the addition of molybdenum disulfide and other additives that reduce wear)
4. Graphite lubricant
   USSA GOST 3333-80.
5. Grease
   CIATIM 201 GOST 6267-74, CIATIM-221 GOST 9433-80.

Working fluids

1. Coolant
   TOSOL-A40M, TOSOL-A65M TU 6-02-751-86 (use in winter OZH-40, OZH-65 GOST 28084-89 is allowed) or “Lena-40”, “Lena-65” TU 113- 12-11.104-88. The water is clean and “soft” (rain, snow, boiled).
2. Shock absorption fluid
   AZh-12T GOST 23008-78. Substitute: spindle oil AU OST 38.01.412-86.
3. Brake fluid
   “Tom” TU 6-01-1276-82, “Rosa” TU 6-55-37-90, “Neva” TU 6-01-1163-78, GTZh-22 TU 6-01787-75 (see . also opinions about different brake fluids)
4. Electrolyte
   with density, g/cm3: 1.25 - for areas with temperatures up to -10 ° C; 1.27 - for areas with temperatures up to -30 ° C; 1.29 - for areas with temperatures up to -40 ° C (see also the article “Battery”)
5. Gasoline
   A-76 GOST 2084-77, summer or winter grades.

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When replacement is required

The frequency of replacement of consumables for UAZ Patriot, taking into account difficult climatic factors, is on average 10 thousand kilometers. But it must be said right away that this inaccurate indicator can be corrected. The fact is that there are still important factors that influence the replacement schedule. In addition to off-road conditions and sudden temperature changes, rapid wear of the beneficial properties of oil is affected by driving style, sudden lane changes and even traffic violations. The car in question is not designed for driving at high speeds, and is intended exclusively for other purposes. UAZ Patriot is a car that in itself is unreliable and clumsy, requiring timely maintenance. The same goes for regular oil changes. Practice shows that this procedure may be required even earlier than after 10 thousand kilometers. Such cases are not excluded, and in order to avoid premature wear of internal combustion engine components, it is necessary to check the condition of the oil in advance.

Types of oils

Prior liquid volumes. priors refueling volumes

Choosing an oil is not an easy task, since when doing so you will have to deal not only with a huge number of brands, but also with different types.

As you know, there are the following types of motor lubricants:

• mineral;
• semi-synthetic;
• synthetic.

To select the type of oil, you must take into account the operating conditions of the vehicle. However, you can also use original oils recommended by the manufacturer himself.

These include the following products:

• UAZ Motor Oil Premium 5W-40;
• UAZ Motor Oil 10W-40;
• UAZ Motor Oil 0W-40.

Let's look at each of these products.

ZMZ engine maintenance

The engine in the Patriot is domestic ZMZ, not the most reliable. But, if you maintain it efficiently and pour good oil on time, then it will live for a long time.

LIqui MOly produces special products for VAZ, UAZ and GAZ. This is the Optimal series with wear additives and excellent properties to protect parts from aging and scuffing. The piston will work reliably.

You can also consider Syntoil High Tech 5W40 LIqui Moly pure synthetics 100 PAO, for an extended replacement interval of up to 15,000 km. mileage

Syntoil also withstands excessive loads when driving uphill, off-road and under heavy loads when driving in mud and frequent wheel slipping.

The volume of filling into the engine is up to 5 liters of oil + topping up to 3 liters if driving off-road.

Cooling system

To replace, take red antifreeze with the best properties against corrosion and overheating up to 130 C. Meguin antifreeze will cope well with elevated temperatures and its removal from the system. Will retain its properties under high loads and driving through mud at high speeds.

Do not allow oil starvation in the ZMZ engine.

Description

Brake fluid class DOT 4. Does not have a negative effect on brake system parts. Has high thermal stability. Recommended for use in hydraulic drives of brake systems and clutches of UAZ vehicles at authorized UAZ stations.

stability of thermal properties throughout the entire service life,

reliable braking even in harsh operating conditions,

adapted to Russian operating conditions of UAZ vehicles; Class: DOT-4

Brake fluid “UAZ” DOT-4 (0.5 l) / 0001-00-DOT3004-00 “UAZ” ORIGINAL

• article 0001-00-DOT3004-00 “UAZ” ORIGINAL;
• in stock and available for purchase;
• price as of May 16, 2021 - 269 rubles;
• Delivery is carried out throughout Russia.

Place your order for this product online right now!

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How to choose the right oil for UAZ Patriot

The main engine for this SUV is the gasoline ZMZ-409, which is more common than the imported 2.2-liter diesel engine. But whatever the country of origin in which these engines are developed, only the highest quality oil should be selected for them.

Let's consider which oil is best suited for a popular SUV, based on tolerance parameters, viscosity standards, as well as types of oils, best brands and year of manufacture of UAZ Patriot.

Year of release – 2013

• All-season – 10W-50, 15W-40, 5W-40
• Winter – 0W-40, 5W-50
• Summer – 20W-40, 25W-50

• Gasoline engines – SN
• CJ diesel engines
• Type – synthetic
• The best companies - Mobile, Castrol, Shell, ZIK, Lukoil, Valvoline, GT-Oil, Xado

Year of release – 2014

• All-season – 10W-50, 15W-40, 15W-50
• Winter – 0W-40, 0W-50
• Summer – 20W-40, 25W-50

• Gasoline engines – SN
• Diesel engines – CJ
• Type – synthetic
• The best brands – Castrol, Mobile, Shell, Xado

Year of release – 2015

• All-season – 10W-50, 15W-40, 15W-50
• Winter – 0W-40, 0W-50
• Summer – 20W-50, 25W-50

• Gasoline engines – SN
• Diesel engines – CJ-4
• Type – synthetic
• The best companies are Shell, Mobile, Castrol, Xado

Year of release – 2016

• All-season – 5W-50, 10W-50
• Winter – 0W-50
• Summer – 15W-50, 20W-50

• Gasoline engines – SN
• Diesel engines – CJ-4
• Type – synthetic
• The best companies are Shell, Castrol, Mobile

What oil is needed for an SUV

When initially refueling the ZMZ Pro Euro 5 engine, used on the Patriot since 2022, original oil of 2 grades is used:

Synthetic based fluid is recommended for severe operating conditions. The type of lubricant filled into the engine is indicated in the accompanying documentation. When servicing a car at an official dealer, the engines are filled with original material recommended by the manufacturer.

When purchasing a used car that has been serviced by the previous owner itself, it is difficult to determine the type and viscosity of the lubricant in the engine. The existing liquid is drained, and the cavity of the power unit is washed with special oil. Then fresh substance is poured in accordance with the plant’s recommendations.

The choice of lubricant base depends on the operating conditions of the vehicle.

An additional criterion for choosing oil is the climate zone in which the SUV will be operated. The selection of the base is carried out taking into account the maximum and minimum air temperatures in summer and winter. Synthetic materials are suitable for operation at low temperatures because they retain fluidity and facilitate the procedure for cranking the shaft with the starter. The list of lubricants acceptable for refueling a gasoline unit is given in the table.

When using a synthetic-based fluid, knocking noise may occur from the hydraulic valve lash compensators installed in the gas distribution mechanism. The defect is observed on cars with mileage of more than 80 thousand km. New compensators allow the use of both synthetic and semi-synthetic oil. But the use of mineral-based lubricants is not recommended, since the design of the motor is not designed for the use of such substances.

The ZMZ 514 diesel engine (or the less common Iveco) requires the use of oils that meet the API CF-4 specification and higher. The lubricant container must contain an inscription confirming that the substance is suitable for use in diesel engines equipped with a turbocharger.

How to check the condition of the oil

To determine whether the oil has become unusable, you should pay attention to its color and smell. So, if the liquid is colored dark brown and smells burnt, then this indicates mechanical wear of parts, which occurs due to the loss of the oil’s beneficial properties. The situation can become even worse, for example, when the oil contains sediment in the form of dirt deposits and metal shavings. Such and similar symptoms usually occur with high mileage, including untimely replacement. So, it is advisable to check the condition of the oil in advance, and not wait for the replacement schedule. But this raises another question - when exactly should you check the oil.