Bear with me while I complain like a little girl whose shoes are too tight. I'm sick of answering the same "Why doesn't my speedometer register correctly since I swapped tire sizes?" question over and ...

I recently bought a 2002 Citroen C3 1.4 LX petrol. The speedo reads zero and shows no speed when travelling. The mileage stands still also. I've been told by once source that it's the ECU and that ...

Yes, it does! Though not as much as speedometer fudging by your car manufacturer. Your car can only measure rotations of the axle, with expectations of tyre circumference based on its standard tyres.

Yes, but just a bit. A car measures the rotations of the axle and wheel. The speed is the distance traveled per hour (speedometer reading). The distance traveled (odometer reading) is rotations ...

•Many people have altered the speedometer readings unknowingly just because of a simple tyre upgrade. •Most car manufacturers have tyre recommendations on the pillars between the front and rear doors ...

Dear Tom and Ray: It occurred to me that as a car is driven and the tires wear down, each tire's circumference decreases. Since the speedometer measures speed through the revolutions of the drive ...

The speedometer on the Toyota Yaris says the tiny car can go 140 miles per hour. In reality, the bulbous subcompact’s 106-horsepower engine and automatic transmission can’t push it any faster than 109 ...

•Many people have altered the speedometer readings unknowingly just because of a simple tyre upgrade. •Most car manufacturers have tyre recommendations on the pillars between the front and rear doors ...

Modern road-vehicle tyres are made of extremely tough synthetic rubber and have steel wire and mesh reinforcement embedded within them, so they are far less elastic than, say, the tyres on my ...