Detonation destroyed engine update

[TJC]

Did the engine oil used have the correct ratings as called for in the owner's manual? The correct oil has additives to help prevent low speed detonations (Low-Speed Pre-Ignition) which is very destructive.

https://www.valvolineglobal.com/en-ksa/what-is-lspi/

Yet another reason I moved to Valvoline Protect and Restore 5w30. The info below is straight from Valvoline website.

Better suited to modern turbo/GDI engines. Restore & Protect is specifically formulated for turbocharged and direct-injection engines and includes LSPI protection, which is particularly important in small turbo GDI engines.

Much newer oil specification. The current Restore & Protect 5W-30 meets API SQ / ILSAC GF-7A.

Deposit control is a major advantage. GDI/turbo engines can be particularly sensitive to piston and ring deposits. Restore & Protect's Active Clean technology is designed to remove deposits over repeated oil-change intervals and prevent new buildup.

Valvoline Restore & Protect has 79% stronger anti-wear protection versus GF-6-qualified oil.

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[oldnslow]

The engine oil should never be in the combution chamber, so it can't affect detonation. Be careful what you read from marketing people. All of those that I met in my jobs were better at throwing BS than understanding how the product worked.

 

[TJC]

The engine oil should never be in the combution chamber, so it can't affect detonation. Be careful what you read from marketing people. All of those that I met in my jobs were better at throwing BS than understanding how the product worked.

I agree that oil should never be in the combustion chamber. But if rings stick from carbon deposits, oil will find its way into the combustion chamber.

 

[RangerBill]

The engine oil should never be in the combution chamber, so it can't affect detonation. Be careful what you read from marketing people. All of those that I met in my jobs were better at throwing BS than understanding how the product worked.

It is a well-known issue with DI engines. There is always a small amount of oil that gets into the cylinder. That is how the piston is lubricated and some gets by the rings.

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