How your car calculates your odometer
Your car calculates your odometer too. It uses tyre rotation and has to be accurate +/- 4% in most countries.
Odometer readings are be affected by your tyre pressure, tyre size, atmospherics and a number of other small factors.
How odometer is calculated by GOFAR
GOFAR calculates each trip distance based on time and speed and we are usually accurate to within 0.5%.
We then add up all your trips to create a total calculated odometer reading.
GOFAR's method and your vehicle's method of calculating odometer values are both educated estimations in other words and so they can sometimes result in slightly different readings. This is normal and should not be a concern.
How to Improve Accuracy
We have created some systems to ensure GOFAR matches back to the car's odometer as closely as possible.
- Manually Update Odometer: You can do this whenever you add in a fuel receipt OR you can go to Settings > Vehicles > Edit Car > Odometer and manually update your current odometer reading whenever you wish.
- Automatic Learning: Every time you give GOFAR a new odometer reading, it compares this to its calculated estimate. GOFAR then adjusts its own algorithm to progressively increase accuracy over time. The more odometer entries you enter into the app, the more the GOFAR's system learns your car's characteristics and the more precisely it will match your vehicle's odometer reading.
Please note: The Odometer value on the app only updates after you finish each trip.
For Tax Purposes: Small variations (1-4%) are generally acceptable and considered within Australian Design Council tolerances