What were your symptoms for you to take it in if I may ask?My 2017 Chevy Cruze Premiere is in the shop now because of LSPI - all 4 pistons are being replaced, rings and gaskets. Unfortunately, since GM won't replace the motor, I will be getting rid of the vehicle. No guarantee that the motor isn't already damaged. It's a shame that driving 25 mph can cause LSPI to occur. GM called it a "design flaw", I'm calling it a waste of my money and now when I go car hunting I'll need to stay away from GM, Ford and Honda vehicles as all have been using the same downsized, boosted engines that can easily slip into LSPI.