The base game limits are based on real-world dimensions. Larger 4x2 chassis have more space for tanks, while 6x4 or 8x4 chassis often have smaller fuel tanks because the extra wheels and axles take up the space where tanks would normally sit. 44 version have the largest default range?

: These mods often include adjustments to other systems, such as increasing brake air tank pressure to handle the added weight of the fuel. Manual Capacity Editing

Locate the line tank_size: [value] and change the number to your desired capacity (e.g., from 600 to 1200).

Navigate to the chassis folder for the truck you want to modify.

Save and re-zip the file with the same folder structure and place it in your ETS2 mod folder.

If you prefer not to use a pre-made mod, you can manually adjust the fuel capacity by editing the game's definition files: Use the scs_extractor.exe tool to open the def.scs file.

: Extreme versions found on the Steam Workshop can increase capacity to 5,000 liters or even up to 50,000 liters to eliminate the need for frequent refueling.

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