The industry demands engine protection


OEMs Request a Change

The increasing impact of low speed pre-ignition (LSPI) has prompted original equipment manufacturers (OEMs) to request immediate implementation of a supplement to ILSAC GF-5 to protect turbo gasoline direct injected (TGDI) engines from catastrophic damage. The proposed API SN Plus supplement is not a new category and will be available alongside the current API SN and ILSAC GF-5 categories.   This unprecedented request from OEMs highlights the severity of low speed pre-ignition (LSPI) and confirms the immediate need for higher performing lubricants to protect against damage.

SN Plus Supplement Proposal

Courtesy of APIAmerican Petroleum Institute. The primary oil and natural gas trade association in the United States. API operates a voluntary licensing and certification program that allows engine oil marketers to use the API Engine Oil Quality Marks if their products meet specific requirements.

The SN Plus designation will appear in API donut symbols sometime in the second quarter of 2018 and will be a voluntary category along alongside current API SN and ILSACInternational Lubricants Standardization and Approval Committee. A collaboration between the American Automobile Manufacturers Association (AAMA), Chrysler, Ford, GM, and the Japanese Automotive Standards Organization. ILSAC GF- engine oil specifications target fuel economy, emission system protection, and enhanced engine oil robustness. GF-5 licensing. The only additional requirements for adoption of the supplement include:

  • Finalizing the LSPILow-Speed Pre-Ignition. Uncontrolled combustion that takes place in the combustion chamber prior to spark in gasoline direct injection (GDI) engines. test (now called Sequence IX)
  • Establishing base oilThe primary or underlying fluid, usually a refined petroleum fraction or a selected synthetic material, into which additives are blended to produce finished lubricants. interchange (BOI) and viscosityA measure of a fluid's resistance to flow. A fluid with a higher viscosity flows less easily. grade read-across (VGRA) guidelines for product formulations

What’s Next?

Lubrizol continues to advocate to “Change the Industry Model.” The SN Plus Supplement is an example of category complexity that the industry must now manage. The impact of the delay in GF-6 is far reaching and exemplifies the need for earlier, pro-active collaboration between OEMs, oil marketers and additive suppliers. Warranty costs will increase. Oil reformulation and testing to solve engine design challenges can be expensive. These costs can be avoided by engaging oil marketers earlier during the development of new hardware technology.

For more information about LSPI and TGDI engine lubrication needs click here

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