In order to move around the Valley you will need Fuel!
Tap on the Fuel icon, in the bottom right of the screen, to check the Fuel Generator. The number on the button shows the amount of Fuel units you have (1 Fuel unit = 1 movement point).
How to get Fuel?
Every day you get one Fuel spin, that gives you a random amount of Fuel, for free!
You can get more by either spending diamonds or performing Fuel Tasks which fill up the Sun Point bar for another Fuel Spin. These tasks are reset for 24 hours (same tasks all day) but can be done an unlimited number of times. What's awesome about this is that the extra Sun Points will be added to the next Sun bar for the following Fuel Spin!
Tap on the XP level bar to check the special tab, giving you clear visibility of ongoing Fuel Tasks and other information.
Like trucks in real life, trucks in the Valley may break down after running for some time!
Worry not, it's easy to help repair them:
If a Broken-down Truck is on the way to your destination, your truck will automatically make a short stop to repair that truck and then keep running to your destination.
You can either wait for a player to help you, use diamonds to instantly repair it, or just wait for a period of time until it gets repaired by itself.