The headline news for engine builders and car enthusiasts is that the most recent changes in American Petroleum Institute (API)-spec SP oil have radically reduced the concentration of the active ...

If you've ever bought a quart of motor oil for your vehicle, you've likely encountered the letters API somewhere on the label. In fairness, there are a lot of abbreviations, symbols and odd number ...

Modern API-certified engine oil (currently SP) is not a good choice because the ZDDP levels are limited to no more than 850 parts per million (ppm).

This product is the world’s first*2 racing engine oil that uses plant-based raw materials for more than 80% of its base oil and has both racing performance and API SP certification.

The Product has obtained API (American Petroleum Institute) SP certification*1, making it the world's first*2 engine oil with racing performance*3 and API SP certification using a plant-based raw ...