I'm putting a 2.5L Ford Fusion engine in place of the 2.3L engine in my sons 2005 Mazda 3S.

The 2.3L has 150kmi and is using a quart of oil every 400mi. The VVT gear is also bad causing that nasty rattle on startup. The original clutch just went out so the time is right for a swap.

The car does not smoke when running or on startup. There are no oil leaks. Other than the VVT rattle it generally runs fine and there are no CEL's or anything else, it just uses a ton of oil.

The swap engine is a 2011 2.5L Ford Fusion engine from a local salvage yard. It has 58kmi on it.