- A Measure of how much compression a fuel can handle before ignition
- Higher Octane Rating means a higher Compression Ratio can be used
- Also can be important to control Engine Knocking
- Will use RON as the measurement of choice?
Quick Reference Table of Various Fuels
- Carbon Monoxide ? (useful for calculations if syngas is used)
- Diesel Fuel 15-25
- Dimethyl Ether 105-123
- Ethanol 108.6
- Hydrogen More than 130?
- Methane 120
- Methanol 108.7