Whether a Mitsubishi 3.0L engine is an interference or non-interference engine depends on the *specific* engine code. Mitsubishi produced several 3.0L engines over the years, and their designs varied. There's no single answer.
To know for sure, you need to identify the precise engine code (often found on a sticker on the engine block or in your vehicle's documentation). Once you have that code, you can search online for information specific to that engine.
