This is very true. The break-in period more pertains to engines built with loose tolerances (i.e. American cars) in which the parts have more room for play. If the parts don't seat right, and groves and knicks are carved into the pistons, sleeves, cam lobes, and crank because the engine was redlined when it was new, the life of the engine goes down the drain. Which is why you will never see a Pontiac Grand Prix dynoed at redline in each gear when it comes off the line. Heck, if they did, the engine may blow right then and there! :rofl: The Japs and European manufacturers are so anal about their cars that if it ain't what it's been advertised to be when it rolls off the line and isn't ready to be driven like a bat out of hell right there, they don't ship it. Which is why they cost more, last longer, run more efficient, and just perform better than domestic engines. And which is also why Domestics will never really come close to the imports untill they start to do this.