With the continued delay of the ILSAC GF-6 specification, the API (American Petroleum Institute) is developing an official API SN Plus specification. The API SN Plus specification is not a replacement for ILSAC GF-6 but will act as a supplemental category alongside the current API SN and ILSAC GF-5 categories.
The need for the API SN Plus specification is due to the rapidly growing number of Turbocharged Gasoline Direct Injection (TGDI) engines in the market. TGDI engines are being favoured by OEMs because they allow for better fuel efficiency and higher power outputs from their engines. However, TGDI engines are susceptible to Low-Speed Pre-Ignition (LSPI) which can cause significant damage to the engines if not addressed. The fact that multiple OEMs are planning to have TGDI engines in a significant portion (over 25%) of their new vehicles in 2018 indicates the immediate need for higher performing lubricants that can protect against LSPI.
Currently, the first licensing date of SN Plus is tentatively set on May 1, 2018. The SN Plus designation will then appear in API doughnut symbols and will be a voluntary category alongside current API SN and ILSAC GF-5 licensing. The new API SN Plus specification will have the same performance as API SN with an addition of two new tests:
API SN Plus will also be extended to include 0W-16 viscosity grade fluids. GM and Ford have both developed working test procedures for LSPI to address the issue internally.
Oronite’s existing product architecture, which provides a connection to a strong ILSAC GF-5 technology platform, will support API SN Plus. It’s award-winning OLOA® 55516 package is API SN Plus ready, LSPI compatible and dexos1: Gen 2 approved.
For more information on OLOA® 55516 and API SN Plus options, contact your A S Harrison & Co Account Manager.
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