Break-in Times Vary Examples of break-in periods for specific vehicles vary, depending on the make, model and other variables. For instance, Nissan suggests its GT-R should not be driven at more than 50 percent throttle or over 3,500 RPM (revolutions per minute) for the first 300 miles (482 kilometers). Chevrolet has a two-stage break-in for its famed Corvette: For the first 500 miles (804 kilometers), it suggests drivers stay below 4,000 RPM and avoid driving at full throttle. Subaru recommends owners keep it below 4,000 RPM for the first 1,000 miles (1,609 kilometers), regardless of the car model. … [Read more...] about Do You Have to ‘Break In’ a New Car?