This scenario seems like all up-side for drivers. But today’s smaller, hotter-running engines pose significant challenges to lubricants. The latest is a phenomenon called low-speed pre-ignition (LSPI), also known as "super knock," which can destroy pistons and connecting rods.
What is LSPI?
Under normal operation, spark-triggered ignition is timed to work in tandem with downward piston momentum. LSPI occurs when an oil/fuel droplet hiding in the piston crevice launches into the combustion chamber and ignites the fuel/air mixture too early. The resulting force clashes with the upward moving piston and can cause damage like that on the piston shown above.
If you have a Turbo Diesel engine chances are this will effect you!
Proving it can protect turbocharged direct-injected engines, AMSOIL provided 100 percent protection against LSPI in the engine test required by the GM dexos1® Gen 2 specification.