octane rating in a sentence

Examples

1. The octane rating of typical commercially available gasoline varies by country.
2. The octane rating of propane is relatively high at 110.
3. There are other products in the alkylate, so the octane rating will vary accordingly.
4. Gasoline sold in most countries carries a published octane rating.
5. Since isooctane has an octane rating of 100, why aren't automobiles fueled with pure isooctane?
6. The maximum octane rating in California is generally 91.
7. For spark-ignition engines the fuel has an octane rating.
8. Some fuels have an octane rating higher than 100, notably those containing methanol or ethanol.
9. The octane rating was developed by chemist Russell Marker at the Ethyl Corporation in 1926.
10. Octane rating boosting through additives was a line of research being explored at the time.