Speedo Accuracy

jake000 · 9 Dec 2006 at 21:24

I was driving in my 1.0L 1996 micra the other day and at about 61mph. Someone went past me and I noticed that their speedo was a digital one and said 64mph on it. It seemed to be doing around 10mph more than me as it wouldn't have got past me as quick as it did only doing 3mph more than me.

How far is my speedo out and what is the average micra's are out by, if it works like that?

Thank you

jake000 · 9 Dec 2006 at 21:46

Maybe a friend has one and I can test it, thanks for the information

Do you think it would be out at 30mph?

jake000 · 9 Dec 2006 at 21:50

Scuzi said:
Off the top of my head, there is a tolerance to overread by about 8-10% at 70mph although most cars will indicate about 73-75mph at an actual 70mph. Your speedo shouldn't under read your actual speed.

My speedo has had problems in the past. When the car is left in direct sunlight, the speedo gets stuck. I have had it looked at but everytime I take it to the garage, it works fine lol.

Thanks for the help guys

jake000 · 11 Dec 2006 at 07:22

Stonedofmoo said:
So driving along at 61mph you were actually looking at another cars speedo rather than the road ahead

Seriously mate, concentrate!

This kind of comment, you can keep to yourself. It was a road I have used a lot and was it was pretty straight and not many cars where about. I hardly think me noticing a big display was a lack of concentration.

Thanks for all the comments and help everyone. It has made me understand it all a bit better now and like I said before, I try and get hold of a GPS at some point

jake000 · 11 Dec 2006 at 08:15

Stonedofmoo said:
I can, but it's better to point out something that's common sense when common sense is lacking.

Thanks.

Its not common sense. I happened to look to the side of me as someone was overtaking me and noticed a big orange display showing 61. I then looked back straight ahead of me. Whats the big problem in that?

jake000 · 26 Jan 2007 at 19:38

Dirtydog: I know its been a while but I would like to apologise anyway for getting annoyed. You have your opinion and I have mine.

Maybe I did read it wrong im not sure but I know that when I drive along 30mph roads at around 29mph people are always up my rear end which gives me the impression that either 90% of people want to speed or maybe my speedo's off slightly and there getting annoyed at me possibly sitting at 25mph? It feels like im doing the right speed though :confused:

Thank you everyone else that replied

jake000 · 27 Jan 2007 at 12:45

Overlag said:
yes, that is one thing that annoys me... although the oposite end of scale.... im following a line of cars in a 50mph zone..... we are all doing 45-50. yet if a camera comes up everyone slows to 35-40. Why is that?

its even worse when people decide to slam there brakes on and slow down to 25-30mph.

Well I do stick to 29mph to 30mph. So I shouldn't be annoying people that badly. One thing I don't do though is jam my breaks on for a speed camera. I already know im not speeding and I know that if theres a 40mph limit and im doing 39mph, im not going to get done