hassam
High Octane Fuels
December 7th 2008 17:47
Octane number is the direct measure of a fuels' quality. There is simple rule that higher the octane number, higher the quality of a fuel. Now when we talk about quality, we are actually talking about how well a fuel resists knocking. So we can say that the octane number also measures how well a fuel is likely to cause knocking in the engine.
The knocking refers to the fact that when the fuel is burnt in the engine's cylinders it actually ignites earlier, that means it ignites without the need of a spark from the spark plugs. This undesirable effect produces a knocking sound in the engine and can make the engine over heated. If poor quality fuel is used it will continually damage the engine due to knocking effect, reducing the engine's life time.
The ideal octane number for a fuel varies from vehicle to vehicle, generally Japanese cars run fuel with octane number of 90 RON. European manufacturers have a slightly different criteria which suggest that their cars should be run with fuel having a octane number of 95 RON.
There are many types of high octane fuels and several additives are used for reducing the undesirable effect of knocking. These additives are called anti-knocking agents.
You can read further about these additives and different high octane fuels over here:
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