Differences and technical characteristics of 5W-30 and 5W-40 oils

Types of oils

Lubricants in the automotive market are represented in three categories:

• For gasoline engines.
• For diesel engines.
• Universal. Designed for both diesel and gasoline internal combustion engines.

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Oils, depending on the season of use, are divided into three types:

• Summer.
• Winter - 5W and 10W.
• All-season - 0W30 and 5W30.

The effectiveness of motor oil depends on its physical properties, one of which is viscosity. It ensures the ability of the lubricant to remain on the surface of parts and maintain its fluidity. The parameter affects the protection of the engine from premature wear and friction during vehicle operation. If the declared viscosity does not correspond to that recommended by the manufacturer, the service life of the motor may be reduced.

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High-temperature viscosity is an equally important parameter, non-compliance with which may lead to the need for early major repairs due to engine operation at high speeds beyond permissible limits.

When choosing a lubricant, the viscosity indicator is taken into account - it must correspond to the parameters recommended by the manufacturer. Using engine oil that differs from the required requirements can cause engine failure and costly repairs.

Champion OEM Specific 5W30 C1

Synthetics with low SAPS volume, which ensures savings in fuel consumption, regardless of the type of power unit and installed turbine. In addition, Champion 5w30 lubricant can be used for passenger car engines running on gasoline and diesel fuel, with a minimum of:

• phosphates;
• sulfur;
• sulfates;
• phosphorus.

Designed for modified engines that support the Euro 4 standard. Applicable for power units with DPF filters, which are characterized by the use of oil with a minimum amount of HTHS content.

Advantages of Champion Specific 5w30 C1 for gasoline and diesel units:

• improved exhaust cleaning from harmful impurities;
• protection of parts from deformation and wear;
• increasing the working life of the motor and cleaning mechanisms from soot and dirt;
• fuel economy thanks to the use of functional additives;
• reduction of carbon dioxide emissions.

Thanks to the technological composition and SAPS, it ensures the functional operation of the engine and allows you to save on fuel. It has increased resistance to oxidation processes, due to which it keeps soot waste suspended, thereby reducing the formation of soot and soot in cylinder-piston mechanisms and eliminating CO2 emissions.

How to choose motor oil

When selecting a lubricant for a car, several criteria are taken into account:

• Viscosity indicator. It determines the possibility of starting the engine at negative ambient temperatures. The smaller this parameter, the easier it is to start the engine. Prevention of mechanical and chemical damage, the degree of uniform coverage of engine parts with lubricant also depend on its viscosity.
• Temperature conditions. It determines the effectiveness of the selected engine oil when operating in cold weather and the temperature range in which safe operation of the machine is ensured, regardless of the degree of engine heating.

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The American engineering community SAE has adopted the above classification of fuels and lubricants. Oils corresponding to this classification are marked with the abbreviation SAE.

What does 5w-30 and 5w-40 mean in oil?

Let's start with the fact that this parameter is called SAE (US Society of Automotive Engineers).

The first characters before the dash indicate that the oil is winter. In other words, the viscosity of the oil at low temperatures. The symbol W just means winter. The number before the letter W shows how easily the engine will turn over in cold weather, how well the oil pump will pump oil to lubricate the surfaces, how easy it will be for the starter to turn the engine over to start, and whether the battery will have enough power.

What are the winter viscosity parameters?

• 0W– performs its function in frosts down to -35-30 degrees. WITH
• 5W– performs its function in frosts down to -30-25 degrees. WITH
• 10W– performs its function in frosts down to -25-20 degrees. WITH
• 15W– performs its function in frosts down to -20-15 degrees. WITH
• 20W– performs its function in frosts down to -15-10 degrees. WITH

The second numbers after the dash characterize the summer viscosity range of the engine oil. The lower this number, the thinner the oil; accordingly, the higher it is, the thicker it is. This is done so that in the heat and when the engine is warmed up to 80-90 degrees, the oil does not turn too liquid (it will cease to function as a lubricant). What are the summer viscosity parameters and what temperatures do they correspond to?

• 30 – performs its function in heat up to +20-25 degrees. WITH
• 40 – performs its function in heat up to +35-40 degrees. WITH
• 50 – performs its function in heat up to +45-50 degrees. WITH
• 60 – performs its function in heat up to +50 degrees. From and above

Example. Oil 5w-30 is suitable for the following temperature range: -30 to +25 degrees.

Features of 5W30 oils

Urban vehicle operation is characterized by:

• Prolonged engine idling.
• Being in traffic jams.
• Regular trips over short distances.
• A large amount of dust in the air.

The listed factors negatively affect the operating life of the engine. The key to long-term operation and maintaining the technically sound condition of the engine is knowledge of the markings and decoding of 5W30 oil.

The unique formula of synthetic lubricants is based on a base oil and an additive package that gives the finished fluid the following characteristics:

• Protection of the engine from premature wear and friction.
• Resistance to oxidative processes when operating in high humidity conditions.

Release form and articles

Ford oils are produced in 1 liter cans. and 5 l . Knowing the volume of oil that is needed for each car, there is no need to buy 2X5 = 10 liters . It is enough to buy 5 liters. and plus liter containers for full volume. Liter canisters are also convenient for topping up if necessary.

Also, the original oil is supplied in large metal barrels with a volume of 208 liters . Such quantities are used by service centers and repair shops.

Additive packages

The additives used are indicated in the product name and affect its decoding. 5W30 motor oils are developed for a specific engine type and provide its protection thanks to a set of additives. The substances used and their properties must comply with the quality standards for lubricating fluids.

The properties of motor oils depend on the heating temperature of the engine and the intensity of its operation. According to the transcript, semi-synthetic 5W30 can heat up to 150 degrees.

How to spot a fake

Counterfeits of this oil are very rare, and if you believe the manufacturer’s statements, they have not been detected at all. But let’s take a step-by-step look at what nuances you should pay attention to when purchasing in order to distinguish a fake:

1. the canister itself is made of dense high-quality plastic, there are practically no adhesive seams on the sides and cannot be felt to the touch;
2. the bottom, on the contrary, has unevenness;
3. on the sidewall, on the side of the filler neck, there is a transparent measuring scale;
4. the label has a paper base, so when you try to tear it off the canister it should not tear off entirely, unlike film labels;
5. The lid is sealed together with the ring by a skirt; under it there is additional protection in the form of foil.

You need to understand that Idemitsu 5w30 labels may differ, depending on the country of origin of the motor fluid. Pay attention to the quality of packaging and purchase goods from sellers listed on the official website and then there will be no problems with quality.

Selection of 5W30 oils

The car manufacturer indicates the technical characteristics that are relied upon when choosing engine oil. Lubricant approvals are based on engine type, not vehicle make and model. For this reason, the selected engine oil must meet the requirements set by the automaker.

The choice of 5W30 synthetic by decoding depends on the characteristics of the engine, the age of the car and the characteristics of the operating conditions. For cars older than 5-7 years, mineral motor oil is better suited, since its use reduces lubricant consumption and increases the service life of the power unit.

Synthetic oils are recommended for new generation foreign-made engines. The interpretation of 5W30 SN indicates that such a product is optimal for foreign cars operating in urban areas.

Champion 5w30 C4

100% synthetic, intended for power units of modified versions that meet Euro 4, 5 approvals. The oil is designed to preserve the mechanisms of the power plant and improve the cleaning of exhaust gases of Renault internal combustion engines.

C4 lubricant can be used for diesel and gasoline engines equipped with particulate filters and catalytic converters. In addition, the lubricant can be used for units with turbocharged units.

Advantages of Champion C4:

• Complete cleaning of the system from exhaust gases;
• protection of engine mechanisms from wear and deformation changes;
• its safe operation and uninterrupted operation throughout the use of the oil;
• cleaning due to the content of detergent additives;
• reduced fuel consumption and CO₂ emissions.

The oil contains a low level of SAPS, which protects the particulate filter. In addition, it contains additives that reduce its oxidation and thickness, thereby ensuring a long period of engine operation. Thanks to good fluidity, the ignition system starts in cold weather.

Decoding standards 5W30 and 5W40

All 5W30 and 5W40 class motor oils comply with environmental standards and SAE, API and ACEA standards and are approved for use in gasoline and diesel engines of BMW, Man, Volvo, and Renault vehicles. Lubricants undergo laboratory testing and control at every stage of production. The characteristics declared according to the 5W30 decoding must meet the requirements specified by the car manufacturer.

Characteristics of TOYOTA (CASTLE) Motor Oil 5W30

Based on the data obtained, we can say that TOYOTA (CASTLE) Motor Oil 5W30 has fairly good characteristics. The ash content of the oil is very low, which fully complies with GOST. The pour point is -39C, which makes the oil an excellent option for cold climates. Additive content (base number) 5.9. This is quite normal, but for use with good quality gasoline.

Advantages of synthetics 5W30

Synthetic motor oils of the 5W30 series have the following advantages:

• Protection of engine components from chemical and mechanical influence.
• Creates a super-strong oil film on the surface of parts.
• They have anti-corrosion and antioxidant properties.
• Protecting the engine from wear and increased friction.
• Extends engine oil change intervals.
• Possibility of use in different types of engines.

Synthetic motor oil, according to 5W30, can be used all year round, maintaining performance properties and eliminating the need for seasonal changes.

Some tips for choosing ↑

Before buying a lubricant, be sure to take into account factors such as: age of the equipment, actual mileage. If the car is no more than five years old and the mileage is no more than 75,000 km, then it is better to fill it with synthetics with a viscosity index of “30”. But, some automakers clearly indicate the need to use 5W40. This is written in the operating manual for a specific vehicle.

However, if the vehicle has traveled more than 100,000 km in the overall standings, then only 5W40 should be filled in here, since there is wear on metal parts and wear on the piston group. Using a lubricant with increased viscosity will only increase compression and increase performance by temporarily sealing holes and gaps.

Decoding 5W30 series oils

Labeling of lubricating compounds of category 5W30 is carried out according to SAE standards. Decoding 5W30 allows you to determine the operating temperature of the oil, properties and other operating nuances:

• The minimum temperature at which the oil characteristics remain unchanged is indicated by the first digit of the marking. In 5W30, the number “5” means that the lubricant can be used at temperatures not lower than -30 degrees. It may also hide the speed of lubricant passage through the main channels of the system and energy costs.
• The time of year in which it is advisable to use the oil is indicated by a letter. Lubricants with index W are intended for winter use.
• The maximum temperature at which the oil retains its characteristics is marked by the last number: 30 means that the lubricant can be used at an air temperature of no more than +30 degrees. In the W40 marking, the number means that the oil can be used in summer at ambient temperatures up to +40 degrees.

Relevant only at negative degrees ↑

Indeed, 5W30 is useful to a motorist only when frost sets in. It is not recommended to use the product in summer. Some geographic regions of the country are distinguished by a special climate, where temperatures reach -60°C, and the average does not rise above 25-30°C. So, we know that 5W30 is intended for use at temperatures from 25°C to +20°C. While the 5W40 we are familiar with calmly tolerates similar frost and heat of +35°C. Both types have the letter symbol “W”, which according to international standards means they can be used in winter. Sometimes even experienced specialists can get confused in modifications, not like “new recruits”.

Criterias of choice:

• type of vehicle;
• age;
• mileage;
• climatic operating conditions.

Recommendations and tips

Many people ask the question: is it possible to mix these two items (provided they are produced at the same plant), for example, when adding to the engine? Judging by consumer reviews, very much so: the result is a lubricant with average characteristics: approximately 5w35. In addition, according to some drivers, 5w30 eats up much less of the internal combustion engine.

In areas where in summer the temperature rarely rises above +25°C, you can successfully use 5w30 as a cheaper and more economical option.

In areas where the temperature is definitely higher, as an alternative, which oil is better, 5w30 or 5w40, we choose the latter as a more viscous option. This way, at least, it will be better for your engine: in hot weather, the lubricant film will not quickly drain from the insides, keeping them constantly oily, as a result the resource and performance of the engine compartment will increase.

Which oil is better in summer?

In summer, the main characteristic of motor oil is its viscosity at high temperatures. An indicator of 30 indicates that fluidity is guaranteed at an operating temperature of no more than 150 degrees. But if the driver drives the engine a lot at maximum speed in the heat, the lubricant will quickly reach its limit, and you should think about replacing it with a higher temperature analogue - 5W40.

But even in this case, first of all you need to refer to the recommendations of the car manufacturer. If the lubricant is on the list of approved ones, then you can use it.