Oxygen Not Included Wiki
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This article contains outdated information that is inaccurate for the current version. It was last updated for LU-356355. Unreflected changes in the discussed game mechanics are detailed here: EX1-449549
This article contains outdated information that is inaccurate for the current version. It was last updated for LU-356355. Unreflected changes in the discussed game mechanics are detailed here: EX1-449549
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This article is related to content of the Base Game. There may be a version for the "Spaced Out!" DLC, see Petroleum Engine (Spaced Out).

Petroleum Engine is one of 3 types of engines you can build on a rocket. Unlike the steam engine, the petroleum engine requires both petroleum and an oxidizer (solid oxylite or liquid oxygen) for fuel.

Unlike the Steam Engine, the Petroleum Engine does not store the fuel by itself. Additional Liquid Fuel Tanks are required to store the Petroleum. Oxidizers are stored in the Solid Oxidizer Tanks in case of Oxylite or Liquid Oxidizer Tanks in case of Liquid Oxygen.

When a rocket with Petroleum launches or lands, it exhausts superheated Carbon Dioxide at 1226.85°C (1500 K) in an area below the engine, which cannot be blocked by tiles immediately below the engine. Throughout takeoff, the area below the engine will be heated to a maximum temperature of 2926.9°C (3200 K) at a medium rate, 2 times as powerful as a Steam Engine.

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