Which brand of gasoline engine oil is good?

Shell, Castrol, BP, Mobil, Esso and other well-known British and American engine oil products have long been household names, especially in the high-end market. On this basis, the giants continue to supplement the mid-range products and extend the product front downward. Great Wall, Kunlun and Uni-President are the representatives of domestic engine oil, and their quality is also guaranteed.

Castrol

Magnetic protection is a breakthrough technology of Castrol in the field of engine oil. Castrol's main gasoline engine oil products are: Champion synthetic engine oil, Magnetic Protection Engine Oil, Jia Protection Engine Oil and Protection Engine Oil.

Jiahu engine oil is an upgraded product of the original Castrol luxury engine oil. It adds "active synthetic protective molecules", which can maintain lubrication function at low temperature and provide stronger rust resistance and wear resistance.

API standard: SL

Viscosity SAE: 5w-30/10w-40/15w-50.

Applicable models: middle and low-grade models

shell

As the main products of Shell, extraordinary Heineken, extraordinary Heineken, super Heineken and red Heineken are called gray Heineken, blue Heineken, yellow Heineken and red Heineken because their packaging cans are gray, blue and red respectively.

Super Heineken (Huang Heineken)

It is made of mineral base oil, detergent, dispersant, antioxidant, antiwear agent, preservative and other additives.

API standard: SJ

Viscosity SAE: 10W-40

Applicable models: Bluebird, Picasso, Bora, Cerato, Opel, Santana, Fukang, Jetta, Hyundai, Kia and other brands.

Reference price: 4L 138 yuan/can.

Usually, oil with high viscosity is used in hot weather and oil with good fluidity and low viscosity is used in cold weather. In southern China, such as Guangdong, engine oil with viscosity grade of 15W-40 is generally called all-weather engine oil.

In addition, high-end cars or new cars use oil with good fluidity and slightly lower viscosity because of the accurate clearance between parts, while old cars can choose high-viscosity oil with relatively condensed sealing performance because of the large wear between parts.

Generally, changing different brands once or twice will not do any harm to the engine, but it is not recommended to change the brand of oil frequently, which will still have an impact on the engine (mainly the service life).

I hope I can help you and adopt it.