Because it’s fun! Obviously... but also because sometimes, like with this one, there are problems... Here, it ended up being a small gasket leak. Small, but enough to make it puke its coolant all over the place if I were to shut down the engine (it’s the “good kind of leak” lol... exhaust gas into coolant.... not coolant into engine!). Anyway, quick test drive around mount Rokko of an Isuzu Gemini Irmscher R!