For you Direct Injection turbo fans.

PHerder

Well-Known Member
From the SCCA-DMOD-EMOD yahoogroups email:

Do a Google search on LSPI. That's Low Speed Pre Ignition. Apparently it's killing a few GM GDI Turbo engines. A new Grade of oil is on the way to help.
There has been a big discussion on that group about FI vs NA in the DMod class and this was just posted.

I believe that the 2008-2010 SS/TC is direct injection?

If not, never mind!
 

Briann1177

Goblin Guru
This is probably just marketing, but the Amsoil Signature Series oil specifically mentions protection against LSPI.

Protects Pistons from Low-Speed Pre-Ignition
We armed Signature Series with an advanced detergent system that protects against harmful deposits and low-speed pre-ignition (LSPI). Most new engines feature gasoline direct injection (GDI), often combined with a turbocharger to boost power and improve fuel economy. These new technologies, when combined with a poorly formulated motor oil, promote LSPI and threaten engine operation. LSPI is the spontaneous ignition of the fuel/air mixture prior to spark-triggered ignition. It occurs in today's advanced engines and is much more destructive than typical pre-ignition
 
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