IOR Petroleum have a customer portal that allows fuel data to be downloaded in native Gearbox format.
To configure, add the Gearbox Fleet Number on the Card Editor screen in IOR Petroleums Customer Portal:
Then use the Export GEARBOX CSV button on the portal index to download the required data:
In Gearbox, go to Fuel, click on import and upload the file without having make any changes to the file format.
Thankyou to IOR Petroleum for adding this feature:-)