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Octane rating is a measure of how resistant the fuel is to causing 'knocking' or pre-detonation in petrol(gasoline) engines. It is measured relative to a hydrocarbon which is rated at 100, and determined by testing in a test engine. There are two methods of testing though, which give results called RON or MON. In Europe RON is quoted, and regular petrol is about 92, though usually pumps give 95 RON fuel. In the US a mean of RON and MON is used and for the same fuel the figure is about 5 points lower, so 90 would be the same as 95 in Europe.
Gonzalo Abernathy
Wiki User
∙ 11y agoOctane is an oil added to gasoline (petrol) to raise the ignition temperature of the gasoline. This is necessary in gasoline engines with high compression as the heat of compression could cause "pre-ignition" in the engine. That is, ignite the fuel before the spark in the engine cycle. This can cause "knock" or a rattling noise in the engine, damage in the engine and loss of power from the engine. Natural or raw gasoline has an ignition temperature of 536F(280C), octane can raise this as high as 804F(429C) at an octane rating of 100.
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What petrol reduces air pollution?
Unleaded. Lead was used to increase the octane rating and improve performance. Not sold with lead in now, in the UK
Is propanol a good or effective fuel and why?
propanol is a good fuel because it has a high octane rating, which increases its fuel efficiency, however it is very expensive so not a common fuel.
What octane for a kx 100?
Stock can run 93 octane and if its modded you need 100 octane or higher if its a high compression build.
What is the measure of the antiknock properties in a fuel?
octane number
When you see an octane 95 RON what does the RON mean?
RON= research octane number
What property of petrol affects engine knock?
'Knocking' in petrol engines is caused by petrols low flashpoint - its high combustibility. The octane rating is too low for the compression.
What is the octane rating of methanol?
The octane rating of methanol depends on the octane rating scale measurement type used, n-Heptane is the zero point of the octane rating scale then the octane rating of methanol is 115
What octane is kerosene?
It has no octane rating.
Increase branching of a hydrcarbon has what effect on its octane rating?
Increasing branching increases octane rating.
What does octane mean?
Octane rating is the resistance to burning. For example (not real number) a gas with an octane rating of 50 will burn at 100 degrees Fahrenheit whereas a gas with an octane rating of 100 will burn at 200 degrees Fahrenheit. Higher the octane number the harder it is to burn.
What octane rating is used in the 1998 Ford Explorer?
87 octane
What is the recommended octane rating for the 1998 Ford Explorer?
87 octane
What is the Octane rating for a 2009 buick lucerne v6?
87 octane
What is the recommended octane rating for a 1998 Explorer?
regular unleaded - 87 octane
Octane rating for Ford Taurus 2002?
" regular " unleaded - 87 octane
What is the octane rating for the 1998 Ford Explorer?
regular unleaded - 87 octane
What is the octane rating for a 1994 Cadillac Seville?
your car must have 93 octane.
