ARC Raiders is chock full of various items that you must find by any means necessary to progress. Many of the game’s quests, alongside much of its secondary progressions, are tied to unique items that can be either looted, crafted, purchased, or recycled from other pieces of loot.
Synthesized Fuel is one such item, though it’s a lot easier to obtain than most other loot we’ve covered so far.
If you’re having trouble finding it, here’s what you should do.
How to get Synthesized Fuel in ARC Raiders

The absolutely easiest way to obtain Synthesized Fuel is to purchase it from Celeste. She sells it from time to time for a few Assorted Seeds a pop, meaning you’ll have to stock up on these through topside runs, looting them straight or recycling Herbs that you find across the game’s maps.
On the other hand, Synthesized Fuel can be looted or recycled, with the latter being the more productive way. On Spaceport and Stella Montis, you can find Rocket Thrusters in Exodus loot areas, with each providing you with a couple of Synthesized Fuels per recycle. The item doesn’t have that much use outside of being recycled or sold, so it’s a very productive source of Synthesized Fuel, which will put your mind at ease.
It’s almost guaranteed to appear in the Assembly on Stella Montis or other Exodus areas in the game, so you should check them out if Celeste purchases aren’t an option.