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Originally Posted by SENTRAdriver_06
my manager and i were calibrating his truck for his new 20's on the dodge.
he said he was going 30 while i was going 20...
this started to get me thinking if my car is even calibrated correctly.
99 sentra GXE LE... went from 14''s to 16" mr7s
should sentras need calibration or are they smart enough.
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When you changed size did you keep the diameter the same?
ie from 185/60/14 to 195/50/15 to 205/40/16
If so you are ok.
If not, no the car speedo is not smart, and your odo and speedo will be wrong.