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Old 12-21-2012, 02:47 PM   #8
Scooby Specialist
Member#: 234363
Join Date: Jan 2010
Chapter/Region: TXIC
Location: Beaumont
2004 Aprilia RSVR
Track Monster


I'm also pretty sure all cars come from the factory to read a little high. It gives them a cushion zone, so when you are going the speed limit you are actually under and won't get a ticket. My 06 Sti and 05 mini both do the same thing and by the same amount as yours. As far as if your odometer is reading actual mileage I do not know. I would assume it counts tire rotations times circumference of a stock sized tire. While your speedo can have the computer tell it to read 4% higher than what it's calculating.
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ArkansasDave is offline   Reply With Quote