Final answer:
High oil and cylinder head temperatures (or detonation) can be caused by high-temperature combustion, combustion of sulfur-based fuels, combustion of volatile substances, and low octane rating of the fuel.
Step-by-step explanation:
High oil and cylinder head temperatures, also known as detonation, can be caused by various factors:
- High-temperature combustion: Combustion of any carbon-based fuel, such as gasoline, diesel, or coal, can result in high temperatures if the combustion process is not controlled.
- Combustion of sulfur-based fuels: The combustion of sulfur-based fuels like diesel and coal can lead to high temperatures due to the release of sulfur compounds.
- Combustion of volatile substances: Fumes from paints or solvents, which are carbon-based fuels, can cause high temperatures if ignited.
In addition to these causes, one of the factors that can contribute to high temperatures and detonation is the octane rating of the fuel. Octane ratings indicate the quality of a fuel and its ability to burn without knocking or pinging. If the octane rating is too low for the engine, uneven burning can occur, leading to knocking and pinging.