Originally Posted by JL95AccorD
Wouldn't a heavier oil lubricate the parts better... and mean less engine wear, or an I wrong about that? I would think the newer car, with parts not broken in would need something lighter to make sure it gets through everywhere. That's what I think, someone correct me if I'm wrong.
In colder climates, the heavier oil will take longer to warm up, thin out, and get into all areas of the engine. That will just lead to increased wear, and worse oil consumption.
The car calls for 5w-30, and Id stick with that year round.