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How "OFF" is your speedometer?
I'm currently running the factory DUNLOP RFTs. Air pressure @ factory spec. My speedometer reads 3+ MPH more than GPS (2 Phone apps and one Garmin) @ highway speeds (75-85). Anyone else experiencing this? Is there a fix?
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'14 X5 35d Space Grey/Dakota Black
'12 BMW F 800 GS Trophy
'09 Mercedes Benz E63 AMG
'09 Discovery III HSE- '05 Range Rover HSE
'86 DEFENDER 110 RHD TDI- '72 SERIES III 88 2.25L
Last edited by EIGHTLUG; 11-12-2014 at 02:30 PM..
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