Reset Trip and MPG Computer for Test

What happens here

After adding the fuel additive, the presenter takes the truck for a drive. He then shows the vehicle's overhead console displaying an average MPG of 15.6. He proceeds to reset both the average MPG display and the trip odometer to 0.0. This action marks the official start of the fuel economy test, ensuring that all subsequent mileage and consumption data are recorded fresh with the additive in the fuel system. He then continues driving, covering an initial 50.9 miles before resetting the trip meter again, suggesting an initial circulation period before the main test run.

Goal: Clear previous driving data to establish a fresh starting point for the fuel economy test with the additive.