Fuel Tank

The Fuel Tank is a feature introduced in Version 1.21 that allows players to store extra Eggs from their current farm. These stored Eggs can then be used to fuel Spaceships on other farms using a different type of egg.

The Fuel Tank has seven upgrade levels. To upgrade beyond the initial level, players must purchase the Pro Permit. Upgrades cost Golden Eggs and increase both the Fuel Tank's capacity and its maximum output rate of the Tank increase.

Limits for each type of Egg can be set using a slider, which controls the maximum amount of that Egg stored in the Fuel Tank. This allows players to set up refueling strategies (see below). If the slider is adjusted below the current amount for a given Egg type, players will be given the option to either keep or dump the excess Eggs.

Unlike most buildings, the Fuel Tank does not reset upon prestige. It is located to the bottom-right of the launchpad and below the Hall of Artifacts. Each level has a different visual appearance on the farm.

Level	Capacity	Max Output	${\frac {\text{Capacity}}{\text{Output}}}$ (Minutes)	Cost	Net Cost	Capacity/
0	2B	300M/min	6.67	0	0	$\infty$
1	200B	12B/min	16.67	50K	50K	4M
2	10T	180B/min	55.56	250K	300K	33.33M
3	100T	3T/min	33.33	1M	1.3M	76.92M
4	200T	4.5T/min	44.44	2M	3.3M	60.61M
5	300T	6T/min	50	3M	6.3M	47.62M
6	400T	7.5T/min	53.33	4M	10.3M	38.83M
7	500T	9T/min	55.56	5M	15.3M	32.68M

Note: The upgrade screen rounds down and doesn’t show decimal values. For example, the level 4 upgrade displays 4T/min, but the actual output is 4.5T/min.

Strategy[]

There are many different strategies depending on how far you are in the game, which spaceships you have unlocked, and how many Soul Egg you currently have.

The basic strategy is to fill the Fuel Tank with as many Eggs as you can, then go to the highest-level Egg farm required by the ship you're launching. You’ll use stored Eggs from lower-level farms and fresh Eggs from your current farm for the highest-level type.

For example, if you’re launching short Henerprise ships, you need 2T + 2T. The basic strategy is to store as many Dilithium Eggs as possible in the Fuel Tank, then switch to the Antimatter farm. When you launch, the ship will use Dilithium Eggs from the Tank and Antimatter Eggs from your current farm.

Atreggies Henliner[]

The following strategy will assume that you have at least a level 3 Tank and are launching extended Atreggies Henliner ships.

The extended Atreggies Henliner requires 2T + 6T + 6T + 6T Eggs per ship. The strategy will be to store at least 4 ships (24T Eggs minimum) worth of Dark Matter Eggs (so you can continue to fuel ships while you replenish lower eggs), then use the remaining space in the tank to hold as many Tachyon (x2), Dilithium (x6), and Anitmatter (x6) Eggs as the Tank will hold. The below chart lays out the target amount of each egg for each Tank level:


Level	Ships per Tank	Tachyon	Dilithium	Antimatter	Darkmatter
3	5	10T	30T	30T	30T
4	12	24T	72T	72T	32T
5	19	38T	114T	114T	34T
6	26	52T	156T	156T	36T
7	34	68T	204T	204T	24T

For example, if you have a level 3 tank, you will set the sliders on your tank to fill up 10T Tachyon Eggs, 30TDilithium Eggs, 30T Antimatter Eggs, and 30T Darkmatter Eggs. Once you have the first 3 Eggs filled in the tank, you will switch to the Darkmatter farm and launch as many ships as possible. At some point when you have four ships fueled (3 launched and one on the pad), you will switch back to the Tachyon Egg farm and start to refill the tank. While you are refueling the first three eggs again, you can use the stored Darkmatter Eggs to launch additional ships if needed. You continue to repeat this cycle as frequently as necessary.

Old Strategies[]

Note: The strategies below are old and some players still use them. But if you’re new or not already using one, it’s better to use the strategy above. The above strategy is easier and works better with the current version of the game. For example, some of the older strategies below use a feature that let you dump half the Fuel Tank, but that feature was removed and replaced with sliders.

This section will outline fueling strategies for Extended Henerprises with both the 100T and 500T tank. These strategies were taken from this post on the main Egg, Inc. discord server. Each strategy will also credit its individual creator. These tanks will all work for the new Atreggies Henliner anyway, they will simply last half as long.

100T Tank[]

The Simplest Choice[]

Original author unknown, found in the Cluckingham Palace Co-op group discord.

14T Tachyon
42T Dilithium
42T Antimatter
Sit on Dark Matter
Multiply amounts by 2 for 200T tank, 3 for 300T tank, etc. For 500T tank, you can fuel an extra exhen so add another 1t Tachyon and 3T of Dilithium and Dark Matter.

This will last months without needing to do anything ever. If you need to prestige for SE, just finish on dark matter for your final leg.

The 1-4-7 Exhen Tank Setup[]

By @joe__ (166602878503485440)

Refill once every 3 days with negative brain required.

Refuel precisely every three ships: if you launch your three exthens at the same time, you have 3 days to refuel.
No rounding issues as is the norm: you always have 1 trillion of each egg in your tank
A refueling rule that is painfully simple: if you hit 1T, 4T, or 7T, you max out your tank with that egg. You've already memorized it.
Infinite chicken heavy launches whenever double capacity turns up, because you have a separate stash of 6 trillion Rocket Fuel Eggs.

The initial tank setup we'll achieve this with is:

How to achieve said tank:

Max out your tank with Tachyon, then halve the amount twice
Fuel and abandon 6 extended henerprises to discard 6T Tachyon Eggs
Fill your tank with Dilithium Eggs
Fuel and abandon 8 short henerprises to discard 16T dilithium eggs
Fill your fuel tank with Dark Matter
Fuel and abandon 14 short henerprises
Fill your tank with Antimatter
Fuel and abandon 2 standard voyeggers
Fill your tank with Rocket Fuel

Again - you refuel 30T eggs every 3 days which can be done passively without boosting, you get exthens on tap every 3 days if you do refill properly and can also launch unlimited chicken heavies with the rocket fuel eggs!

Only switch on weekends strategy[]

By @pianoman24 (358769030204751874)

6T Tachyon
54T Dilithium
36T Antimatter
4T Dark Matter

This tank setup allows you to fuel 6 rockets per week and _switch your tank only once per weekend (during prestige events) for at least 10 weeks straight! The beauty of this is you only have to switch your farm when you would want to switch it anyway to prestige and you don't have to think about it during the week. This setup was found by painstakingly searching through every mathematically unique setup and ranking them based on multiple variables. Trust me, this is the best out there.

NOTE: This only works if you have most of the FTL improvements epic research (the one that makes the later missions take less time.) Otherwise each 6-mission set takes longer than a week.

Here are three rules-of-thumb to follow:

1. Launch no more than 6 rockets on a single farm. 2. After the 6th launch...
2a) IF you cannot fuel another 1-3-3-3 ship, THEN begin fueling before moving to next farm
2b) ELSE move immediately to next farm without beginning to fuel next rocket
3. When you switch farms, always switch to the egg type that can fuel the least amount of missions. (Obviously, right?)

IMPORTANT: On the 5th week, when you are on the dark matter egg farm, fill up and abandon one short voyegger mission. This will ensure you have enough fuel to get through week 7. Trust me.

And that’s it! Following those steps will bring you 11 care-free weeks of exhen cycling! If you are willing to switch your farm twice on a weekend instead of just once, you can get even farther than 10 weeks. Info will be posted on the Google Sheet soon!

The Eggcelent No Brain Exhen Cycle (ENBEC)[]

By @creadeyh (146263952085614592)

Once you have this cycle set up, the only rules to follow are:

If you have 1T Tachyon left in the tank, switch to Tachyon farm
If you have 3T or less of Dilithium, Antimatter or Dark matter, switch to that farm

This allows you to have your tank fueling activated all the time and easily see when you have to switch farm. Since you always have at least 1T eggs left, it's also rounding-proof !

To kickstart the cycle (disable tank fueling before removing eggs):

Fill the tank with Antimatter
Remove 50%
Fill the tank with Darkmatter
Switch to a Tachyon farm
Fuel and abort 4 short henerprises
Fill the tank with Tachyon
Repeatedly remove 50% Tachyon until you have 1T
Fuel and abort 2 short henerprises
Fill the tank with Dilithium
Switch to a Tachyon farm, activate tank fueling and start launching exhens!

Note: I ended up with 30 different valid cycles. I arbitrarily picked the satisfying 5 which fuel Tachyon -> Dilithium -> Antimatter -> Dark Matter, in that order, then picked the one which seemed the easiest to kickstart

10/40/50 Slider Exhen cycle[]

By @jhalcyon (184063956539670528)

Works for all tank sizes of 100T or more using the same setup and fueling cycle - bigger tank just means more ships per farm.
No counting ships; your tank tells you when to switch.
Goes through the eggs in value order for the simplest transitions between farms.
Repeats infinitely.
Rounding-safe; always has at least 1T extra of each egg.
Can be modified to add other fuels for short chicken heavy's or ASC in place of excess eggs while cycling, especially on larger fuel tanks
Doesn't get messed up by sending short henerprises for dubcaps in the middle

SETUP

Fill your tank with 10% Dilithium, 40% Antimatter, and 50% Dark Matter using the sliders.
Prestige and build a tachyon farm
Set your sliders for Dilithium, Antimatter, and Dark Matter to 50% of your tank (the same as the amount of Dark Matter you filled in step 1) and your slider for Tachyon to half of that.
Turn on Fueling and tanking and start launching hens.

Once you're up and running, switch to the next egg when your tank doesn't fill up all the way because of the slider cap.

The cycle will run Tachyon -> Dilithium -> Antimatter -> Dark Matter and the next egg will also be the one that you have the least of.

Google Spreadsheet with tabs showing exact setups and cycles for each tank size can be found here

500T Tank[]

The simplest choice - 500T Version[]

Original author unknown. The person who is writing this found it from the Cluckingham Palace Co-op group discord.

71T Tachyon
213T Dilithium
213T Antimatter
Sit on Dark Matter

This will last months without needing to do anything ever. If you need to prestige for SE, just finish on dark matter for your final leg.

Exhen/Rocket Fuel Cycling for 500T Tank[]

By @joe__ (166602878503485440)

Benefits compared to other methods:

7T Rocket Fuel in the tank at all times, so you can run unlimited chicken heavies without breaking the cycle
You only ever need to switch egg in multiples of 3 exthens, so your launches are always together

Initial tank setup:

7T Rocket Fuel, 12T Tachyon, 117T Dilithium, 153T Antimatter, 211T Dark Matter, which then cycles as follows

In this case you're always running a multiple of 3 exthens before switching farm and as many as 9 sets - 27 exthens - without switching egg. Refill when you get to 3T or less Tachyon, or 9T or less of any other egg (i.e. cannot run another full set without rounding errors) Tank setup is as follows:

Fill Dark Matter then halve it
Fill and abandon 4 exthens
Fill Dilithium
Fill and abandon 2 Exthens
Fill Tachyon
Run 1 short Voyegger and 1 standard Henerprise, discarding 0T/4T/3T respectively
Fill Rocket Fuel
Run 6 standard Henerprises discarding 0T/0T/18T/18T of the above
Halve Dilithium
Finally fill up Antimatter

The Eggcelent No Brain Exhen Cycle for 500T tank (ENBEC-500)[]

By @creadeyh (146263952085614592)

Once you have this cycle set up, the only rules to follow are:

if you have 1T Tachyon left in the tank, switch to Tachyon farm
if you have 3T or less of Dilithium, Antimatter or Darkmatter, switch to that farm

This allows you to have your tank fueling activated all the time and easily see when you have to switch farm. Since you always have at least 1T eggs left, it's also rounding-proof!

To kickstart the cycle:

Fill the tank with Dilithium
Switch to a Dark Matter farm
Remove 50% Dilithium
Fuel and abort 1 short Henerprise
Switch to a Tachyon farm
Fuel and abort 1 short Henerprise
Switch to an Antimatter farm
Remove 50% Tachyon and 50% Dark Matter
Fuel and abort 6 standard Henerprises
Remove 50% Dilithium 2 times
Fuel and abort 1 short Henerprise

The cycle (180 exhens launches and 2 prestiges) looks like this:

Once-Per-Monthish Exhen Fueling Guide[]

By @adriannosaurus (396329932004786198)

49T Tachyon
145T Dilithium
145T Antimatter
145T Dark Matter

To scale it up or down to different fuel tank quantities, simply multiply the numbers by 0.2 (100T tank), 0.4 (200T tank), 0.6 (300T tank), or 0.8 (400T tank).

Advantages[]

This leaves room for 16T whatever else, likely rocket fuel eggs for dubcaps if you feel like running those
It does not matter what egg your home farm is on

Disadvantages[]

Lasts for only 48 cycles

Nearly 4 Months of Fuel[]

By @annmar9700 (1023092974005002331)

138 Exhens (and 7 other hens) per prestige, no effort fuel cycling. Nearly 4 months of fuel.

Start on Tachyon 0/39.6/168.6/291.6
Launch exhen 1-13
Start fueling exhen 14
Move to Dilithium
Launch exhen 14-56
Start fueling exhen 57
Move to Anti-Matter
Launch exhen 57-97 & 5 shorthens (for tank balancing)
Start fueling exhen 98
Move to Dark Matter
Launch exhens 98-137 & 2 standardhens (for tank balancing)
Start fueling exhen 138
Move to Tachyon
Launch exhen 138
You are at 0/39.6/168.6/291.6 – go back to step 1.

Note, you don't really need the "0.6" - it's just buffer fuel.

If you want to prestige for SE, fine, just go back to whatever fuel you were on when finished and your cycle should be uninterrupted.

Trivia[]

The capacity limit for the Fuel Tank applies to the total of all eggs of any type you have stored in it. Hence, a Tank with capacity of 2B cannot hold 2B Edible and 2B Superfood Eggs, but it could hold only 1B Edible and 1B Superfood.
Special Events which affect fuelling do not affect the output of Fuel Tanks. They only affect eggs being produced on your current farm which are going into a Spaceship or Fuel Tank.
In the Advanced Flow Control, you can separately toggle whether or not you want to divert your fuel into Spaceships and into the Fuel Tank. If both are toggled ON, then fuel will go into the Spaceship first until it does not need any more fuel of that type (after which the rest will go into the Fuel Tank until it reaches its total capacity).
As of Version 1.28, Fueling Limits can now be set for individual egg types, replacing the "fuel dump" feature. When a limit for an egg type is set to below the current number of that egg type, you can choose to dump the excess or keep it. The limit for an egg type will be kept even when that egg type is used up, except when the limit was set to 0 (to prevent a situation where you can't add any of an egg type to the Fuel Tank nor change the Fueling Limit for that egg type).
If your Fuel Tank contains multiple types of fuel needed for your current Spaceship, only one type of fuel will flow at a time. (In other words, the game doesn't allow each of the types to flow at the max output rate or even at a partial output rate.)
- The order of fueling will match the order in which the fuel types are displayed: your current farm's egg type first, followed by the other eggs in the order in which they were unlocked.
If your tank contains the same type of Egg as your farm (and you need this as fuel for your current Spaceship), both your tank's maximum output rate and your farm's output rate will contribute to the fueling rate of the Spaceship.
- This could actually make fueling take longer, as your Fuel Tank won't be able to contribute any other relevant fuel it contains until you meet the quota for the fuel that matches the current farm. For this reason, you might consider dumping all stored fuel that matches your current farm and toggling the tank to Output Only until your last batch of Ships before you need to switch eggs to gain more of the other type of fuel.