Engine Efficiency Module

This article is about Engine Efficiency Module in Subnautica. For the related article on the Below Zero Wiki, see Engine Efficiency Module.

This article is about Engine Efficiency Module. If this is not what you are looking for, see Upgrade Module (Disambiguation).

The Engine Efficiency Module is an Upgrade Module which increases the power efficiency of the Seamoth and Prawn Suit.

The Engine Efficiency Module recycles heat by-product to minimize power inefficiencies. Each Module reduces power use by 15% (Can be stacked up to four modules resulting in a maximum power efficiency of 60%).

Recipe

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Items in Subnautica

Raw Materials

Acid Mushroom • Alien Feces • Baby Leviathan Enzymes • Blood Oil • Cave Sulfur • Copper Ore • Creepvine Sample • Creepvine Seed Cluster • Crystalline Sulfur • Coral Tube Sample • Deep Shroom • Diamond • Fungal Sample • Gas Pod • Gel Sack • Gold • Kyanite • Lithium • Metal Salvage • Magnetite • Nickel Ore• Quartz • Salt Deposit • Silver Ore • Speckled Rattler • Stalker Teeth • Ruby • Table Coral Sample • Titanium • Uraninite Crystal

Seeds and Spores

Blood Oil • Bulb Bush Sample • Bulbo Tree Sample • Chinese Potato • Creepvine Sample • Creepvine Seed Cluster • Lantern Fruit
Acid Mushroom Spore • Blue Palm Seed • Cave Bush Seed • Deep Shroom Spore • Eye Stalk Seed • Fern Palm Seed • Furled Papyrus Seed • Gabe's Feather Seed • Gel Sack Spores • Ghost Weed Seed • Grub Basket Seed • Jaffa Cup Seed • Jellyshroom Spore • Marblemelon Seeds • Membrain Tree Seed • Ming Plant Seed • Pink Cap Spore • Pygmy Fan Seed • Redwort Seed • Regress Shell Seed • Rouge Cradle Seed • Sea Crown Seed • Speckled Rattler Spore • Spiked Horn Grass Seed • Spotted Dockleaf Seed • Tiger Plant Seed

Crafted Resources

Basic Materials	Bleach • Enameled Glass • Fiber Mesh • Glass • Lead • Lubricant • Plasteel Ingot • Silicone Rubber • Titanium • Titanium Ingot

Advanced Materials	Aerogel • Benzene • Hydrochloric Acid • Polyaniline • Synthetic Fibers • Hatching Enzymes

Electronics	Advanced Wiring Kit • Battery • Ion Battery • Computer Chip • Copper Wire • Power Cell • Ion Power Cell • Reactor Rod • Wiring Kit

Food & Water

Drinkable	Coffee Americano • Disinfected Water • Filtered Water • Large Filtered Water • Reclaimed Water

Fish	Bladderfish • Boomerang • Eyeye • Garryfish • Holefish • Hoverfish • Oculus • Peeper • Reginald • Spadefish • Spinefish

Raw	Bulb Bush Sample • Bulbo Tree Sample • Chinese Potato • Creepvine Sample • Gel Sack • Lantern Fruit • Marblemelon

Processed	Nutrient Block • Snacks

Personal

Equipment	Compass • Fins • Fire Extinguisher • First Aid Kit • High Capacity O₂ Tank • Lightweight High Capacity Tank • Pipe • Radiation Suit • Rebreather • Reinforced Dive Suit • Scanner Room HUD Chip • Standard O₂ Tank • Stillsuit • Ultra High Capacity Tank

Tools	Air Bladder • Flare • Flashlight • Habitat Builder • Laser Cutter • Light Stick • Pathfinder Tool • Propulsion Cannon • Repair Tool • Repulsion Cannon • Scanner • Seaglide • Stasis Rifle • Survival Knife • Time Capsule • Thermoblade

Deployables

Beacon • Creature Decoy • Grav Trap • Mobile Vehicle Bay • Seaglide • Waterproof Locker

Upgrade Modules

Cyclops	Creature Decoy • Cyclops Decoy Tube Upgrade • Cyclops Depth Module MK1 • Cyclops Depth Module MK2 • Cyclops Depth Module MK3 • Cyclops Docking Bay Repair Module • Cyclops Engine Efficiency Module • Cyclops Shield Generator • Cyclops Sonar Upgrade • Cyclops Fire Suppression System • Cyclops Thermal Reactor Module

Prawn Suit	Engine Efficiency Module • Prawn Suit Propulsion Cannon • Prawn Suit Torpedo Arm • Prawn Suit Grappling Arm • Prawn Suit Drill Arm • Prawn Suit Jump Jet Upgrade • Prawn Suit Thermal Reactor • Hull Reinforcement • Prawn Suit Depth Module MK1 • Prawn Suit Depth Module MK2 • Storage Module • Gas Torpedo • Vortex Torpedo

Seamoth	Engine Efficiency Module • Hull Reinforcement • Seamoth Depth Module MK1 • Seamoth Depth Module MK2 • Seamoth Depth Module MK3 • Storage Module • Seamoth Solar Charger • Seamoth Perimeter Defense System • Torpedo System • Seamoth Sonar • Gas Torpedo • Vortex Torpedo

Scanner Room	Scanner Room Range Upgrade • Scanner Room Speed Upgrade • Scanner Room HUD Chip

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Recipe