First Engine oil meet to API SQ standard in Hong Kong

First Engine oil meet to API SQ standard in Hong Kong - Shell Helix Ultra

Posted By Hau_Kai_Hong on August 2025

Understanding the Significance of engine oil standard！

What is API SQ ？

'API standard', one of the most common and important grinding system created by American Petroleum Institute.

- Using two-letter code to define the application of the engine oil. For example, 'SQ' The first letter, "S" stand for gasoline engine. If the first letter as "C" (e.g CK) which stand for diesel engines.

- The letter following (e.g SQ) stand for the testing standard, the highest standard the letter will be closer to the letter "Z".

What is the difference between API SQ and API SP？

"API SP" was a standard of 2020. Following the development, of the technology, the performance of the engine had significantly enhanced. Therefore, "API SQ" was born on the first half of 2025！

The API Testing standard approved the engine oil could meet the latest performance standard as follow :

- fuel efficiency

- LSPI protection

- cleaning performance

- durability

Shell Helix Ultra API SQ

The latest Shell Helix Ultra API SQ, made with Shell PurePlus Technology. This technology delivers crystal-clear base oil from using natural gas with virtually none of the impurities found in crude oil, could reach tp 99.5% pure, so nothing gets in the way of keeping your engine strong.

With the enhanced Shell Helix Ultra, It significantly improves three key performance areas of engine oil: viscosity stability, wear resistance, and volatility. This means it can help extend engine life, reduce maintenance costs and fuel consumption, and effectively enhance fuel efficiency and engine cleanliness.

The Shell Helix Ultra API SQ has been tested and proven to offer comprehensive improvements in cleanliness, protection, performance, and stability, providing top-tier performance for all drivers and delivering an unparalleled driving experience !
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