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What is the best engine oil for the Boyue 1.8T?

1 Answers

IvanFitz

07/29/25 6:30pm

The Boyue 1.8T is recommended to use Shell semi-synthetic engine oil, with the model number 5W-40. Here are the relevant details: 1. The engine used in the Boyue 1.8T is the JLE-4G18TD, with the following oil specifications: SAE: 5W-40; API quality grade: SN or higher. The officially recommended brand is Shell. 2. The official recommendation is Shell 5W-40 engine oil. If using another brand's 5W-30 oil, it can also be used as long as the viscosity at high temperatures and the HTHS value are very similar. 2. Shell is a partner of Geely, and the engine was developed using Shell oil, so using Shell oil is the safest option. 3. When selecting engine oil from other brands, strictly follow the oil grade specified in the car's user manual. If the same grade is not available, a higher-grade oil can be used, but never use a lower-grade oil as a substitute. Engine oil grading explanation: 1. The oil grade refers to the SAE standard viscosity value, such as 5W-40, 5W-30, etc. 2. The number before the 'W' represents the lowest temperature at which the oil can be used. Since this is a numerical value, it is not explained in detail here; you can look it up online. 3. The number after the 'W' represents the oil's kinematic viscosity at 100°C. A higher number indicates higher viscosity, better protective performance at high temperatures, and better stability at high temperatures.

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