Originally Posted by UncleBenny
I thought that when breaking in a new engine its not a good idea to leave it at the same revs for a long time. If that's true then I'd say a long highway trip is a terrible way to break in a new car.
I know when my wife and I bought her Mazda, the dealer said drive at varying speeds for about the first 500 miles and not to use Cruise control until 1000. The varying speeds part was easy since the drive to work everyday takes me through a 25 zone, 35 zone, 65 zone, a 45 zone, and a 30 zone. Got the varying speeds part taken all care of.