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A vintage orange gas pump with a clock face stands next to a large oil drop, a molecular model, and a mechanical piston.

Think you know fuel science? Beat every one of these Gasoline & Diesel quizzes

Fuels & Energy Chemistry

ZapStacks

5

Zaps

100

Forget the fuel pump—this is about high-octane recall. From the flash point of diesel to the precise octane ratings that stop engine knock, every answer powers your climb. Can you handle the pressure of the four-stroke cycle or will you stall out? Prove it.

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ZapStacks

A gas pump nozzle, an oil drum, and a chemical flask are arranged with a molecular structure.
Diesel Fuel Chemistry
20 Zaps · Hard
A gas pump nozzle, an ear of corn, a molecular model, and an Erlenmeyer flask.
E85 Ethanol Fuel
20 Zaps · Hard
A gas pump nozzle, a molecular structure, two oil drops, and a laboratory flask.
Leaded Gasoline
20 Zaps · Medium
A cluster of stylized icons including a fuel nozzle, a piston, an engine block, and a molecular model.
Octane Rating
20 Zaps · Medium
A collection of icons including a molecular structure, an engine piston, a liquid droplet, and a fuel pump nozzle.
Premium vs Regular Gas
20 Zaps · Medium

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