i'm no mechanical expert, but I think the breaking-in period allows the engine to wear down the seals and rings, and to temper the metal so that it runs at peak efficiency. Putting undue stress on new materials may reduce their life to failure, and thus shortens the time until a major overhaul becomes necessary.
Besides, you can stay within the 4500 rpm limit and still be moving at a fast speed. You NEVER want to run your engine at or near red line unless you are a professional racer. here's absolutely no need for it. Keeping the engine running under 4000 rpm will minimize the stress you place on your engine, and maximize your MINI's life! And isn't that the important thing?
Jason |