I've heard various opinions on proper break-in on a new engine.
There's the tried and true 1000 mile break-in: vary the engine speed, keep it below a certain rpm up to 250 miles, 500 miles and 1,000 miles, etc.
Then there's the claim that you should drive it hard right out of the gate to force the rings to seat.
I've always subscribed to option one. My 2k5 GT arrives in just a few weeks, so I wanted some solid and informed opinions before I get it. Does the Ford manual recommend break-in?
There's the tried and true 1000 mile break-in: vary the engine speed, keep it below a certain rpm up to 250 miles, 500 miles and 1,000 miles, etc.
Then there's the claim that you should drive it hard right out of the gate to force the rings to seat.
I've always subscribed to option one. My 2k5 GT arrives in just a few weeks, so I wanted some solid and informed opinions before I get it. Does the Ford manual recommend break-in?