Part
Optimized Fuel IV
Legendary
Tier 4
Afterburner
4000 credits
When fully fueled, 
Afterburner power increased by 150%.
- How to unlock
- Complete 60 events.
Every tier of Optimized Fuel
| Part | Rarity | Tier | Effect | Price |
|---|---|---|---|---|
| Optimized Fuel I | Common | 1 | When fully fueled, Afterburner power increased by 25%. |
2000 |
| Optimized Fuel II | Rare | 2 | When fully fueled, Afterburner power increased by 50%. |
2500 |
| Optimized Fuel III | Epic | 3 | When fully fueled, Afterburner power increased by 100%. |
3000 |
| Optimized Fuel IV | Legendary | 4 | When fully fueled, Afterburner power increased by 150%. |
4000 |