Quote:
Originally Posted by LeeCig
How does one do those calculations? GPS says my Civic shows 5 MPH slower than actual.
Also, could this be corrected with a larger/smaller tire? I'd love for it to be correct
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Just because the speedo does not read correctly does not mean the ODO is off as well. My Focus reads 2mph high but the ODO is spot on. Verify miles traveled with your GPS before doing math that might not be needed.
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-Mike
2007 Ford Focus ZX5 - 91k - SGII, pending upper and lower grill bocks - auto trans
1987 Monte Carlo SS - 5.3/4L80E swap - 13.67 @ 106
2007 Ford Focus Estate - 230k - 33mpg - Retired 4/2018
1995 Saturn SL2 - 256K miles - 44mpg - Retired 9/2014
Cost to Operate Spreadsheet for "The New Focus"
