My 428 never leaks, except for the gasket on the Canton
oil pan...tends to stay a little wet, and one of the sheet metal valve covers tends to fling
oil after a couple of years, but no real
oil leaks. It really depends on who and how the engine was put together...experts = no leaks, novice = maybe.
My answer is, wipe it down once in a while and park the car on black carpet.
Bill