What is SP5W30 engine oil?

2 Answers
FinnRose
08/28/25 5:49am
5W30 is an engine oil that is more suitable for regions with lower temperatures. Below is relevant information about engine oil: 1. Mineral oil: Mineral oil is the residue left after gasoline and heavy oil are extracted from petroleum. In fact, mineral oil is also a natural oil, but it contains more impurities. Compared to semi-synthetic and fully synthetic oils, it is cheaper, provides poorer lubrication for the engine, and has a shorter service life. 2. Semi-synthetic oil: Semi-synthetic oil falls between mineral oil and fully synthetic oil. It contains a large amount of anti-corrosion additives to enhance the oil's stability and high oxidation resistance. 3. Fully synthetic oil: Among these three types of engine oils, fully synthetic oil is of the highest quality and durability, and it is also the most expensive. Generally, it can be used in cars for 10,000 to 12,000 kilometers without deteriorating.
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OHazel
09/10/25 4:13am
When choosing engine oil, I always like to study the specifications. SP5W30 is actually a standard for engine oil. SP represents the latest performance level of API gasoline engine oil, suitable for modern gasoline engine vehicles; 5W stands for low-temperature viscosity, ensuring smooth flow at -30 degrees Celsius and quick cold starts; 30 is the high-temperature viscosity coefficient, ensuring engine component protection against wear under high temperatures. This oil is typically used in full synthetic engine oils, improving fuel economy and reducing emissions. I've used it in my city commuter car and noticed smoother starts and a slight reduction in fuel consumption. Choosing it requires checking the owner's manual, and it's especially suitable for new or hybrid vehicles. Remember to change it regularly to avoid oil degradation affecting engine lifespan, generally checking every 6,000 to 10,000 kilometers.
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