Thread: Which tire size?
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Old Sat, March 28th, 2009, 05:35 PM
JWBFX4 JWBFX4 is offline
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Quote:
Originally Posted by Sburn View Post
That's by design. Ford programs in a +3% bias in the speedo reading. If your Gryphon matches your GPS, it sounds like you're OK.
x2 exactly right, it seems as if ford wanted to cut down on a few speeding tickets by having it programmed 2 mph fast.
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