Low Speed Pre-Ignition in DI engines

[CaminoRacer]

https://bangshift.com/bangshift1320/engine-oil-and-low-speed-pre-ignition-in-direct-injection-engines/

Interesting stuff. Conclusion is that DI engines should use specific oil that has less calcium or sodium detergent.

[12,000 RPM]

I have been hearing about LSPI for years.... glad they finally found a fix. That Driven DI oil is expensive AF though, especially since I change my oil ~4x/yr. Will see if mainstream companies come out with something

[Eye of the Tiger]

I just don't load it up at low speeds. Let it rev. Or not, since it's in a shipping container.

[FoMoJo]

Having transmission programming that tends towards fuel efficiency will often cause the engine to drag/lug a bit.  I've noticed this on my car, but not to the point of any indication of pre-ignition.  Perhaps some manufactures haven't quite figured out the mapping yet.

[shp4man]

One key to eliminating this to is minimise the distance between the top compression ring and the top of the piston.

[Eye of the Tiger]

One key to eliminating this to is minimise the distance between the top compression ring and the top of the piston.

I can do that by adding carbon deposits to the piston top. I mean, the opposite of that. Water injection.