Goto page |
wayne.eckersley3 wrote: |
Hi,
Most times the cars own speedo is 8-10 KMS out because car manufactors do this so people think they are average of say 110kms but this is to show the KMS lTRS PER 100KMS IS EXCELLENT but it is only say 103kms in real truth. Your GPS unit is most accurate on the satellite reading and average. Also the tyre size is important to rotation to the speedo reading as your car data plate shows the only allowed tyre size to the vehicle program data. Real matter of this is the GPS is most accurate and above information is correct as car makes try to cover up to impress the speed to fuel used. Regards, Wayne |
dunnyrock wrote: |
My 1390 is always out by 5kms. I have also noticed wrong speed zones as well. Was in a 100km zone and Garmin showed it as a 60km zone....go figure. |
|
|
||