its psychosematic.. you're losing mileage and power.
oh...
and re:not using it above 60.
that guy was a tool. why isn't there a speed limiter set at 60mph?
Quite frankly: in stock form, there isn't much you can do to a car to damage it; they are designed to perform (in all aspects: redline, temperature, speed, etc) within their intended specs.
Ray
