API SN Plus 2019 (New Motor Oil Specification)
API SN Plus 2019 new motor oil specification & classification. Api sn vs sn plus.
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What is API SN plus?
API SN Plus is a new motor oil specification address the enhanced performance demands of the latest turbocharged gasoline direct injection (TGDI) engine designs. These engines are designed smaller, smarter, more efficient, more advanced and more powerful to deliver higher levels of performance, improved fuel economy, and emissions than ever before.
Products were formulated to satisfy those performances and protect these engines against the harmful effects of low-speed pre-ignition (LSPI) preventing engine damage.
What is LSPI?
Low-Speed Pre-Ignition (LSPI) is an abnormal combustion phenomenon observed at low engine speeds in which the fuel/air mixture in the combustion chambers ignites before spark timing. LSPI can cause engine knock, broken spark plugs and cracked pistons, and, in severe cases, catastrophic engine failure.
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• API SN Plus 2019 (New Motor Oil Specificat...