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What grade is API-SP engine oil?

1 Answers

DelVivienne

07/29/25 9:22pm

API-SP is SP grade engine oil. Here's an introduction to engine oil: Methods for selecting engine oil: Naturally aspirated engines have relatively modest requirements for oil quality and can use mineral oil or semi-synthetic oil. If the car owner has a larger budget, fully synthetic oil can be used. Compared to naturally aspirated engines, turbocharged engines have a more compact structure and operate under more demanding conditions, requiring higher-performance engine oil with better fluidity. Fully synthetic oil is recommended. Functions of engine oil: Engine oil is something every car owner will encounter during vehicle use. Known as the 'blood' of the engine, an engine cannot function properly without oil. Inside the engine, oil not only lubricates but also cleans, seals, cushions, prevents rust, and dissipates heat.

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