so the other day i was driving next to one of the newer model civics. yes, the ones that have the digital speedometer... that displays the number so big that even a blind man can see. anyway i noticed that the person next to me was going 64mph. i looked at my speedometer and it i was going 67mph. no big deal right? except the civic was pulling away from me. SO now i'm suspecting that my speedometer is not calibrated correctly... has anyone else noticed this in their cars?

i have a MY07. stock wheels, stock tires, no gears.

i know there was some kind of controversy with the 06 models and how the odometer went faster than its supposed to... but i thought they fixed that...

 

yes i have noticed this, but i always attributed it to the fact that i upgraded from the 16" ap1 wheels to 17" with bigger tires.

one way you can check is to use a gps. on my garmin nuvi there is a speedometer area that tells me how fast i'm currently traveling.

 

i used my mom's gps it was a garmin too i think... but the speed was always whacked out and seemed incorrect..........

 

on the gps you mean? it's accurate on my girlfriend's rav4, off by couple mph on mine. this is on the highway.

 

hahaha funny my mom has a rav4 too... i wonder how accurate it is on her car. but the speed on the gps was always different from my speedometer speed. weird...

 

Maybe the Civic had oversized tires?

 

Mine matches up with my GPS. Running with a SIRFIII Globalsat BT-359 supposedly accurate to within 0.1 m/sec. Matched up all the way down to SD and back everytime I checked

 

Mine matches to my Nuvi 750 from 45-90 +/- 1mph so my speedo is pretty accurate. '04 with stock wheels/tires.

 

According to my gps the speedo does +2mph, sometimes +3mph when the speeds get higher.

 

My 03 is dead on up to at least 80 according to my gps. And it always agrees exactly with the radar speed displays they set up around here from time to time.