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![AMSOIL Blog, API SN PLUS is Here AMSOIL Blog, API SN PLUS is Here](https://cdn11.bigcommerce.com/s-e0zn5d75fd/images/stencil/600w/uploaded_images/newstand-400x300gf5.jpg?t=1525270804)
AMSOIL Blog, 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). LSPI is the spontaneous ignition of the fuel/air mixture prior…
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