Someone of you are quite immature to see this interesting problem 😆
Most legitimate questions here are why this happens more fruequently in South Korea than anywhere else and why now. Are their diesel contents different? Were more diesel cars (in portion to gasoline cars) sold in South Korea than any other regions? Were the problematic parts of EGR produced in specific region or factory? Is it extremely hot over there (surprisingly a small increase of ambient temperature can be significantly factored after combustion)
There are a bunch of more scientifically intriguing questions we can ask before bringing conspiracy theories
