I obsessed over the engine break-in period when I got my first new car back in 2000. The owner's manual said to avoid hard acceleration and braking for the first 1,000 miles, and it all had to do with ...
Procedures for “breaking in” new, remanufactured or rebuilt engines are evolving. Standard procedure in past decades was to use break-in oil in a “new” engine for the first 100 hours. During that time ...