
Kunlun KR7 belongs to the Kunlun Tianrun series, primarily designed for passenger cars. The oil grade is SL, with viscosity ratings of 5W30 and 5W40. Introduction to engine oil: Engine oil, also known as motor lubricant, serves multiple functions including lubrication and wear reduction, auxiliary cooling, sealing against leaks, rust and corrosion prevention, as well as shock absorption. Precautions for using engine oil: When selecting engine oil, it should be chosen based on the engine's requirements, ensuring compatibility with the engine. Multi-grade oils are recommended due to their advantages in fuel economy, extended service life, and high efficiency, providing superior protection for the engine. The oil level should be slightly below the mark on the dipstick and not overfilled.

I've used Kunlun Oil KR7 several times and found it quite impressive. It's primarily a full synthetic oil series suitable for most gasoline-powered vehicles, such as common family sedans like the Toyota Corolla and Honda Civic, as well as SUVs like the Haval H6 or Tiguan. My car is a Volkswagen Bora, and after switching to KR7, the engine starts faster with reduced noise. This oil excels in high-temperature resistance, providing robust protection during summer highway driving. If your car is turbocharged, like a BMW 3 Series or Audi A4, it maintains lubrication effectiveness even at high RPMs. For regular economy cars, KR7 can extend the oil change interval—for example, from 7,500 km to 10,000 km—saving both hassle and money. In terms of climate, the 5W-30 viscosity ensures smooth starts in cold northern regions and resists thinning in southern heat. Overall, KR7 is ideal for owners who prioritize maintenance, whether for daily commutes or long trips. I also recommend it to friends driving German cars due to its high compatibility across models.

As someone who frequently deals with various engine oils, Kunlun KR7 is quite popular in repair shops. It is more suitable for Japanese and American cars, such as the Mazda Atenza or Ford Focus. KR7 comes in different viscosity grades like 0W-40, and high-performance vehicles like the Mercedes-Benz C-Class can benefit from its improved lubrication efficiency and reduced engine wear. For daily driving, it is especially friendly to older cars, effectively cleaning carbon deposits and extending engine life. From an economic perspective, although it is slightly more expensive than basic oils, its strong protective properties can help avoid major overhauls with regular use. In congested cities, it reduces sludge and ensures quick starts, making it suitable even for off-road vehicles like JEEP. In summary, when choosing engine oil, just match it with your car's manual—KR7 has strong versatility and suits most gasoline engines.

My Nissan Sylphy has been using Kunlun KR7, and the performance is quite good. It is suitable for ordinary family cars and compact SUVs. The oil viscosity, such as 5W-30, covers most models, ensuring smooth start-stop operation. It provides worry-free driving in the city.


