You can get full fuel in Bike Rivals app at anytime. You can get this cheat by changing your phone's time setting.
- Close your Bike Rivals app by either restarting your phone or by killing it on your task manager.
- Set your time in advance for 1 day above.
- Open Bike Rivals app and you will get your full fuel.
- If you decided to get full fuel again, just complete the step 1-3.
- Open Bike Rivals app but do not play a single game.
- Close your app by either restarting your phone or by killing it on your task manager
- Go to settings and change your time/date to your current time/date.
- Open Bike Rivals app just to make sure that there is no problem.