Tyre Pressure Sticker

[mumof4]

Mine had the same as what was on the car..215/55/R16.

[Scorpiorefugee]

Just for comparison, My '98 MkI reads about 4% fast and my '52 Ghia marginally better. The mileage readings are just about right. I have always believed that speedos are set to read 5% high and this seems to match every car I've had over the past 10 years or so. I did once have a Corsair 2000E that was absolutely bang on as could be checked when motorway emergency phones were exactly 1 mile apart, but that was a long long while ago.

 

I also believe that speed cameras etc. should work on the basis of +5% + 3MPH but I have also heard of one person who claims to have been picked up for doing 33 in a 30 limit.

 

It's all very worrying!

[neiluk]

I have always believed the law on speedometer accuracy was that they had to be accurate to +/- 10% at 30MPH, i.e +/- 3MPH. At any other speed they can register what they want and still be legal. I think most cars overread speed and distance so making themanufacturers look good.

 

I always seemed to travel about 5+ MPH faster through my local 40MPH speed trap in my old Daewoo Nexia that everyone else and I never got flashed. After picking up my new Galaxy I followed infront/behind my Nexia for 150 miles and afterwards found it's registered cruising speed of 68-73 was registered as 75-80 in my Galaxy.

 

Newness of tyres/tread depth could have quite a bit to do with it.

 

Neil.