Inaccurate speedometer
We have several signs that show your speed and after going by several I noticed that my speedo shows about three to four mph over actual speed. I also did a side by side comparison with my buddy driving his car and I again came to a three to four mph difference. My question is there something that can be done to correct this? What is causing this. I have stock turbo look wheels with factory recommended tire sizes so I am pretty sure this is not the issue.
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