with an octane mesurer
The measure of antiknock properties in a fuel is typically expressed using the octane rating system. Higher octane ratings indicate better antiknock properties, meaning the fuel is less likely to cause knocking or pre-ignition in an engine.
I think it might be 'octane number'
RON stands for Research Octane Number, which is a standard measure of a fuel's ability to resist knocking in a combustion engine. An octane rating of 95 RON indicates that the fuel has a higher resistance to knock compared to lower octane-rated fuels.
Octane is a hydrocarbon compound with the chemical formula C8H18. It is a component of gasoline and is used as a reference standard to measure the performance of fuels in internal combustion engines. Higher octane ratings indicate greater resistance to engine knocking or pinging.
Octane is a physical property because it describes the physical characteristics of a substance, for example, its boiling point, melting point, density, and odor. In the case of octane, it is a liquid hydrocarbon that is commonly used as a standard to measure the performance of fuel.
Actually, due to advances in modern science they are actually more accurate than the old $200,000.00 engines specially made to analyze (measure) octane.
"Octane" is the measure of a gasoline's resistance to igniting before you want it to, and all gasolines have an octane rating. A Honda Accord runs on unleaded regular...so how you use "octane" fuel on an Accord is to go to your favorite gas station, push the button for the least expensive gasoline they have, and fill your car with it.
The octane number is a measure of performance of a fuel. It is measured relative to pure isooctane which is given an arbitrary value of 100. It is possible for fuels to have an octane number higher than 100. The higher the octane number the more compression it takes for the fuel to detonate. Higher octane fuel is used usually in high performance vehicles where the engines have higher compression ratios. If the octane number of a fuel isn't high enough it can lead to engine knocking this is where the fuel detonates before the fuel is at its maximum compressive state in the engine, this can cause damage and lower performance.
Iso-octane is commonly used as a reference standard to measure the octane rating of gasoline. It is also used as a blending component in gasoline to improve its octane rating and reduce engine knock. Additionally, iso-octane is used in the production of solvents, adhesives, and paints.
Octane rating is simply a relative measure of how much octane (which is a chemical substance) is contained in gas. The only way to do it properly is to buy higher octane gas. But buying higher than what your manual recommends is completely pointless. Contrary to popular opinion, you will NOT get more power, you will NOT get better mileage, and it will not run your engine cleaner.
C9 gas is a octane rating for gasoline, indicating a higher resistance to knocking in engines. It is a quality measure of gasoline's performance in engines, with C9 being a mid-level octane rating.