Canadian Entry To Practice (CETP) Practice Test 2025 - Free CETP Practice Questions and Study Guide

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What is the octane rating of propane, making it a good engine fuel?

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Propane has a high octane rating of approximately 104, which contributes to its suitability as an engine fuel. The octane rating is a measure of a fuel's ability to resist engine knocking or pinging during combustion, meaning that fuels with higher octane ratings can withstand greater compression. This quality allows engines to operate at higher efficiencies and power outputs while reducing the risk of damaging premature combustion, which is critical for maintaining engine performance.

In comparison to other fuels, propane's octane rating is advantageous as it allows for more powerful and efficient combustion in engines specifically tuned to utilize higher-octane fuels. This leads to smoother operation and greater fuel efficiency, making propane a preferred choice for various applications, including vehicles and other engines. Understanding the benefits of a high octane rating helps in recognizing why propane is an excellent fuel option in many scenarios.

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