Navigating LSPI: How ILSAC GF-7 specification advances oil performance for modern engines
Auto Service World
JUNE 16, 2025
LSPI is an abnormal combustion event that occurs when pockets of unburned fuel and oil droplets ignite prematurely in the combustion chamber before the spark plug fires. An LSPI event can have catastrophic results: excessive pressure spikes, broken pistons, and, ultimately, complete engine failure.
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