 Beware buying!  Major transmission issues, water pump is $1200 repair, steering issues, and ours died at 177,000 miles.  Had all maintenance done by a ford dealer and synthetic oil changes.   The water pump will fail, and can cause engine failure.  We thought we were lucky and got it repaired ($1200-$1500), only to have the engine fail 6 months later.  Never used any oil, but the connecting rods are weak on the 3.5's.   I will never ever buy a Ford product ever again.