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What are the differences between SP and SN oils?

2023-09-26

What are the differences between SP and SN oils?

As we all know, oil can play the role of lubrication and wear reduction, auxiliary cooling and cooling, sealing and leakage prevention, rust prevention and corrosion prevention, shock buffering.

Base oil, as the main component of lubricating oil, determines the basic properties of lubricating oil, and additives can make up for and improve the lack of performance of base oil, and give some new properties. For different grades of oil, its quality performance is also different,


This time Master Bang will take you to understand the difference between SN grade oil and SP grade oil.

About SN and SP grade oils


SN and SP are grades of oil, of which the first letter S indicates that the oil is suitable for gasoline engines, referred to as "gasoline engine oil", the second letter indicates the performance of the oil in the standard grade, the later the alphabetical order, the better the performance. At present, the latest standard for this standard certification is SP.

API SP-grade oils generally have better fuel consumption, outstanding cleaning capacity and sludge dispersion, energy saving, anti-silting, inhibition of piston carbon deposits, oxidation, and increased testing of timing chain wear.


The difference between SN and SP grade oils

First of all, the grades are different: SP is the highest grade of current oil, and SN is the second grade of oil. Secondly, the oil film: the oil film of SP is relatively strong, and the oil film of SN is relatively weak. The third is the protection performance: SP protection performance is relatively strong, SN protection performance is general.

In fact, for most car owners, SN oil has been able to meet the daily use, N-grade oil has good oxidation resistance, sediment control ability and wear protection function, to ensure oil consumption and sustainable performance.

However, if you often use your car in a very congested urban environment, you can choose a more advanced oil, which will be relatively more environmentally friendly and more economical.


Owners of small partners can choose according to their daily travel car, do not blindly pursue high-grade oil, so as not to continue to strengthen the work in the cylinder of the vehicle engine, increase engine wear.

Ribang fully synthetic SP oil, low sulfur, low phosphorus, low ash and low sulfate, environmental protection and energy saving, anti-wear, inhibit low speed early burning LSPI, highlight fuel economy, protect the wear of the timing chain, low emissions, provide quality protection for the engine particle trap!

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