# Gas Tank

In **Bunker Survivor**, the **Gas Tank** room is where you can upgrade the gas tanks of your vehicles, allowing them to withstand longer and more fruitful expeditions into the wastelands.

### Gas Tank functions

1. **Extending Wasteland Expeditions:** The primary function of the Gas Tank room is to upgrade your cars' gas tanks. A higher-level gas tank enables your vehicles to stay in the wastelands for more extended periods, gathering more metal resources with each expedition.

{% hint style="info" %}
initially your gas tank level is 1.
{% endhint %}

{% hint style="info" %}
Upgrading the gas tank from level 1 to level 3 progressively extends the expedition duration, with the maximum limit being 8 hours at level 3.
{% endhint %}

{% hint style="info" %}
To improve your gas tank, you'll need to spend Coins, the in-game currency. Carefully consider when and how to allocate your Coins for these upgrades, as it will impact your overall resource management strategy.
{% endhint %}

### Gas Tank stats

| Level | Cost (coins) | Max. time in wastelands |
| ----- | ------------ | ----------------------- |
| 1     | 0            | 4 hours                 |
| 2     | 150          | 6 hours                 |
| 3     | 300          | 8 hours                 |


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