How is Shell engine oil graded?

[AddysonLee]

Shell has 5 color-coded packaging categories, which are: Gray Shell, Blue Shell, Yellow Shell, Red Shell, and White Shell. The details are as follows: 1. Shell passenger car engine oil belongs to the Helix series: Helix HX2, HX3, HX5, HX6, HX7, HX8, Ultra Helix, and PurePlus Ultra Helix, with grades increasing from low to high. 2. Shell has 5 color-coded packaging categories: Each color represents different uses and grades, and is designed for vehicles of different levels. 3. The five categories are: Gray Shell, Blue Shell, Yellow Shell, Red Shell, and White Shell. Gray Shell includes Ultra Helix and HX8, both of which are fully synthetic oils; Blue Shell is semi-synthetic oil; Yellow Shell is divided into HX6 and HX5, where HX6 is semi-synthetic oil and HX5 is mineral oil; Red Shell HX3 and White Shell HX2 are mineral oils.

[VonLondon]

I've been researching cars for many years. Shell's oil classification mainly focuses on viscosity grades and performance grades. The viscosity grade follows the SAE standard, such as 5W-30 or 0W-20. The number before the 'W' indicates Winter performance—the smaller the number, the smoother the cold start. The number after, like 30, represents the high-temperature protection grade—the larger the number, the better the protection. The performance grade uses the API system, such as SN or SP, with SP being the latest standard offering stronger anti-wear performance. Shell also categorizes its oils into series. In the Helix series, Ultra is a fully synthetic oil suitable for high-performance cars, while HX is semi-synthetic and more economical. Choosing the right oil depends on the viscosity recommended in your car's manual, and your driving habits also matter. If you drive at high speeds often, a thinner 0W oil can save fuel. Regular oil changes are crucial—typically every 5,000 to 10,000 kilometers—to extend engine life.

[DiTalia]

As a regular car owner, I learn something new with every oil change. Shell oil grades can be simply divided into two categories: viscosity grade and API grade. Viscosity grades like 5W-30 indicate that 5W means the oil is thinner at low temperatures for easier starts, while 30 represents the high-temperature protection level. API grades are denoted by letters like SP, with higher numbers indicating better protection. I often use Shell Helix Ultra in the Helix series because its synthetic oil is durable. In summer, I opt for 10W oil for stability, while in winter, I choose 0W for easier starts. It's also important to refer to the car manual to ensure compatibility and avoid wear caused by using the wrong oil. During maintenance at the 4S shop, the technician emphasized the importance of consistent viscosity, and adjusting it seasonally can save fuel. After long-term use of Shell, I've noticed significantly reduced engine noise. My maintenance records show oil changes every 8,000 kilometers, which saves money and gives me peace of mind.

[LaAnastasia]

I'm a new driver and have asked about engine oil knowledge. Shell engine oil grades are divided into two parts: viscosity numbers like 5W-30, where 5W indicates low viscosity for easy cold starts, and 30 refers to high-temperature protection strength. The other part is the API grade, such as SP, meaning the higher the performance standard, the better. Choosing engine oil requires matching the viscosity specified in your car's manual for simplicity and practicality. Shell Helix series includes Ultra and HX, and it's recommended for beginners to use the matching one to prevent damage. The oil change interval is suggested in the manual, generally every 5,000 kilometers.