Best 10w40 Gasoline Oils Review 2021

10W40 Gasoline Oil – Buying Guide, Opinions and Analysis


Gasoline oil is the key so that the engine does not suffer neither from the effect of heat nor from the friction that the car has in motion. To avoid these problems, it is advisable to go for quality oils, adapted to the requirements of your engine and that add improvements such as a cleaner engine, a longer useful life and fuel savings by operating more efficiently. Among the most prominent 10W40 gasoline oils we find Repsol Elite Multivalve oil , a product with a high-performance mixed formulation that makes it easier for the product to reach the bottom of the engine and reduces friction on metal parts. Another interesting model is the Petronas Syntium 800 EU, which is a synthetic type oil compatible with a wide variety of engines. In addition, it offers good stability at high temperatures, so the engine components remain well lubricated at all times.

How to use a 10W40 gasoline oil


The engine is an essential part for the car to run. If you want to keep it in good condition, you need to change the oil frequently, which will keep the parts working. The type of oil you use will depend on the needs of your car and the viscosity that the engine needs. If your car requires 10W40 oil, in this section we will show you how to use it.




Place the car on a flat surface

To start the procedure, you must place your car on a flat surface, so that the oil stabilizes and drains faster. Turn off the vehicle and let it cool down for at least an hour to avoid accidents with hot oil, which can cause severe skin burns.


Raise the car using the jack

Using the car’s instruction manual, locate the lifting points of your car, with which you can raise it with the jack you use to change the tires. Then push the jack lever up and down until the car is high enough to change the oil. Put locks on the sides of the vehicle and move it a little to verify that it has been properly adjusted.


Drain the old oil

Next, place a sturdy plastic container under the engine to store the oil that you will drain from the tank. Open the hood of the car and uncover the engine opening by unscrewing the safety cap. After that, locate the oil pan that distributes the liquid through the engine and carefully unscrew the safety cap with a master wrench. The oil draining process may take a few minutes; please be patient and wait until it is completely out.


Change the oil filter

In addition to changing the oil, it is also advisable to change the filter, since it tends to accumulate a lot of dirt, which causes the oil not to properly lubricate the engine. Uninstall the old oil filter by carefully loosening it, lubricate the tip of the new filter with the oil and insert it into the corresponding slot, checking that it fits into place.


Add the new oil to the engine

Prepare the engine to insert the new oil. Open the drum and pour the liquid slowly through the main fill hole. The amount you need will be reflected in the car user manual. If you press a little, the oil will come out more fluidly without generating bubbles that damage the interior of the engine. Then replace the safety cap.




Start the car

To check the oil levels it is advisable that you start the car again and take a short drive. Observe the movement of the needles that indicate the levels and make sure it is full.


Change the oil frequently

The frequency with which you will change the engine oil is different for each car model. Check your owner’s manual or ask your trusted mechanic how often you should change.




The most popular brands


With a 10w40 gasoline oil you can give positive properties to your car so that it can run efficiently and reduce fuel pollution, as long as it is compatible with your car. On the other hand, in this space we will mention some information of interest so that you can learn a little more about the brands that specialize in the production of your favorite oils.




It was founded in 1853 in New York as a company specialized in lubricants for cars and its first products were based on the chemical compound Ester.

As the years passed, the company became increasingly popular until it achieved its goal, international expansion. By 1966 it already had a presence in France and met the demands of the international market with its famous Century 2100 and Century 300V MotorSport semi-synthetic and syntheti oils, which gave favorable properties to car engines, increasing gasoline performance and avoiding friction of the internal parts of the engines.

Today Motul is one of the leading companies in the lubricants and oils market for use in cars, motorcycles and heavy machinery. In addition, it has a strong participation in the international market and has a group of workers who are in charge of the vanguard and technology to advance and satisfy the needs and demands of users.

Additionally, it has a range of products that include synthetic and semi-synthetic oils, refrigerants, hydraulic oils and industrial lubricants.




The Repsol Group was founded in 1987 by Antonio Brufau in Spain. This is an energy and petrochemical multinational and its origin came from the merger of several companies that were previously part of the INH or better known as the National Hydrocarbons Institute.

Over the years Repsol acquired several companies in order to expand its commercial area and expand its products, some of the acquired companies are Astra, Canadiense Talisman and also YPF, which when it acquired the latter, its name became Repsol-YPF SA Positioning as a multinational company that covered the petrochemical and natural gas area. In this process of evolution, the company changes its brand logo and adds more products to the market.

Today Repsol has a high participation in the petrochemical and natural gas market, being one of the leading brands and has a wide range of products and services in which we can mention synthetic and semi-synthetic lubricants and oils, asphalt to supply roads, liquid fuels to supply companies and service stations for entrepreneurs who wish to invest and be part of the Repsol group.




Petronas or also known as Petroliam Nasional Berhad is a Malaysian oil and gas company that was founded in 1974. This company owns more than 103 subsidiaries and in 19 it has partial participation in shares.

With 15 workers and 2 active telephone lines, the company began its work at Jalan Dato Onn in Kampur. Two years later they signed a contract for equity regarding the exploration and exploitation of oil, in addition to that they created PETRONAS Carigali Sdn Bhd. Later, facing the world oil crisis, they expanded their territory nationally and founded 2 branches. Over the years, the company found oil wells, giving it the opportunity to grow as a brand and company internationally.

Today, Petronas is one of the leading brands in the market and has a variety of synthetic and semi-synthetic lubricants and oils for cars that are distributed worldwide. Additionally, it is one of the largest corporations in the world according to the Fortune Global 500 and has logistics and technology operations in more than 50 countries.



Leave a Comment

Your email address will not be published. Required fields are marked *