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Mustang Forums
2011-2014 Mustangs
Interior and Exterior
In-Dash MPG question..
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<blockquote data-quote="RioRed4v" data-source="post: 12059436" data-attributes="member: 9959"><p>Since swapping over to my 20" Roush setup i've obviously noticed a drop in MPG's. On average, it seems to be about 1mpg.</p><p></p><p>Question though is how accurate that is. I don't have a tune so I haven't been able to adjust the speedo readout.</p><p></p><p>Using a tire size calc I get:</p><p style="text-align: center"></p><p></p><p>Also, is this making a substantial difference in my odometer reading?</p></blockquote><p></p>
[QUOTE="RioRed4v, post: 12059436, member: 9959"] Since swapping over to my 20" Roush setup i've obviously noticed a drop in MPG's. On average, it seems to be about 1mpg. Question though is how accurate that is. I don't have a tune so I haven't been able to adjust the speedo readout. Using a tire size calc I get: [CENTER][/CENTER] Also, is this making a substantial difference in my odometer reading? [/QUOTE]
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In-Dash MPG question..
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