Originally Posted By: addyguy
It's a crop-shoot at this point. Recent Hyundai/Kia engines are pretty tough, and have been know to survive this treatment.
The warranty is gone at this point, so in a way, it doesn't really matter what you do. If you want to try and save it, I'd do an oil change, and substutute 1 quart of oil for a quart of MMO, run it 1k, and change it. I'd do that at least 2 times, and then got to 3k changes after that. Engine may clean-up and do just fine; or will start burning oil like crazy, and fail in short order.
Some will say 'don't touch it, she'll blame you for it's problems'. So, before you embark on this, make sure she understands that what she has done is wrong, and may have damaged the engine serverly, and that you aren't responsible for what happens next. Depends on what type of person she is whether she 'understands' this.
Good luck!
+1
Make sure she understands the situation and that the warranty is gone, also explain that anthing you do may or may not improve the situation.