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The "case" will never be closed, opinions will be as varied as the snowflakes... my father is convinced the only time to change a rotor is when it warps. he thinks so little of brakes, that the pads need to be changed when the pads grind steel to steel, and the "grooves" that occur from the pad rivits grinding into them, gives them MORE surface area, so better stopping power... he may be technically correct, but smooth rotors and fresh pads are designed that way for a reason... if "grooved" rotors were better, then race cars wouldn't drill holes and cut slots... grooves hold heat, and compressed gas, plus they weaken the rotor and cut down on heat transferr ability... a slight increase of surface area will not make up for that.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!
My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!
1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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