Post 16014 by pzorb on 2005-04-19 02:17:35
I was just wondering today if my speedo has any effect on my odometer? Just that my GPS thinks that i'm doing 67 when speedo says 70, which is 4.48% wrong. So if you scale that up over the 166K my odo says I've done, wouldnt that put the car closer to an actual milage of 159k-odd miles? Does anyone else think this, or have I just had one too many Strongies this evening? :beer:
Clearly not the end of the world, and if it's true then it gets a service before it's actually due - but interesting none the less when considering actually how far the old girl's gone...?
Cheers
Martin
Post 16100 by rs_andy on 2005-04-19 13:24:08
Mine's about the same, 3 or 4 mph out I expect it does affect the mileage but like you say it can't be a bad thing and I believe its closer to being accurate at lower speeds so it probably evens itself out...?
I know a chap (renault 19) who's speedo read 8mph more than the gps, ouch.
Post 16105 by swordy21 on 2005-04-19 14:06:53
At least you can drive a little bit over the speed limit and not get ur collar felt.
Mind you I wonder how the curvature of the earth affects the GPS as it would assume you are travelling in a straight line between 2 points, when in reality you are going up and down a bit. Mind you that is probably a load of tosh! :wtf:
Post 16118 by siamblue on 2005-04-19 15:24:05
Mine too was way out,But i only found this out at Avon Park,I have now got mine down to +4.5% from +7%,I need to fit 215/35/18 tyres for it to read +0.5%
Gary