This article is about the gas used for travels. For the Zeelichian layers, see Surface and Undergas.

Gas on Twinsun is used for running vehicles. This substance is made of molasses, a thick and dark syrup produced during the refining of sugar. One can of gas is needed for each trip in a buggy or in a hydroglider. Gas cans are available for sale in several shops around the planet, always in packs of 10 cans. There are also a few for free in some places, like the water tower or the rebel camp.

Twinsen needs the gas cans to reach several places too far to walk, such as the water tower and Port Belooga in Principal Island, or the rebel camp in Rebellion Island. The gas is also used to run the hydroglider in the Northern Hemisphere, before finding Dino-Fly.