What is octane number?

Answer 1

The amount of resistance that a fuel has to detonation. The higher the number, the less likely it is that a particular fuel will detonate in a particular engine. The number is as compared to a standard fuel (not necessarily gasoline)

Answer 2

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.

Answer 3

Iso-octane (2,2,4-Trimethylpentane) is the isomer that is the standard for the 100 point octane rating scale (the zero point is n-heptane). Higher octane numbers are now possible

through additives, but 100 percent iso-octane has the rating of 100.

Answer 4

Octane is a rating given to fuels, excluding diesel fuel,that determines their resistance to pre-donation or pinging. They higher the octane rating the more resistant it is to pre-detonation in a high compression engine. In a low compression engine there is no need for a high octane fuel. In fact putting a high-octane fuel in a low compression engine is a waste of money as there is no benefit gained.

Answer 5

Definition: Octane number is a value used to indicate the resistance of a motor fuel to knock. Octane numbers are based on a scale on which isooctane is 100 (minimal knock) and heptane is 0 (bad knock).

Also Known As: Octane Rating

Examples: A gasoline with an octane number of 92 has the same knock as a mixture of 92% isooctane and 8% heptane.

Answer 6

Propane has an octane rating of 103-110 depending on possible impurities.

While this may appear to be the ticket as a fuel for a high compression engine. Popane has a lower BTU rating than gasoline.

Propane has 91,000 Btu's per U.S. gallon while gasoline has approx. 114,000 Btu's per U.S. gallon.

Therefore propane has approx. 82% of the Btu's of gasoline, or less "bang for the buck".

Fuel mileage with a converted gasoline to propane engine, without any internal modifications will suffer somewhat. This can be offset partially by raising the compression ratio to 12-13 to 1.

One of the great advantages of propane is it can be stored for a much greater length of time than gasoline.

Sorry for the lengthy response.

Answer 7

The octane number is a measure of a fuel's resistance to knocking or pinging during combustion in an internal combustion engine. A higher octane number indicates that the fuel is more resistant to knocking, which is important for high-performance engines or those with high compression ratios. The two most common methods of measuring octane number are the Research Octane Number (RON) and the Motor Octane Number (MON).

Answer 8

what do u mean by octane number in gasoline?

Answer 9

The octane number of gasoline describes the performance of gasoline. The octane number is also used to measure the performance of aviation fuel.