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API SN PLUS is Here

The API SN PLUS specification was requested by the automobile industry to protect passenger vehicles from low-speed pre-ignition (LSPI).

Learn why this matters to you and how AMSOIL INC. is ahead of the game.

API SN PLUS is Here

Original equipment manufacturers (OEMs) have been turning to smaller, turbocharged, gasoline-direct-injection (T-GDI) engines for years to meet increasingly strict fuel-economy and emissions requirements.