my speedo reads +/-5 mph under what the car is actually doing, based on readings from local speed traps and some testing with other cars. the tires are 195/65/14 all around currently. iirc later model (plastic bumper) cars got the 65 series, and earlier cars got 60 series. mine is early model. is this the cause of my inaccurate speedo, or is something else going on? i'm badly in need of new rear tires and if i can kill these 2 birds, well i'd love to...
tia.
tia.
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