Friday, January 29, 2010


Octane Does Matter: Octane rating reflects the quality, purity, refinement, efficiency and heat bearing capacity of petrol. Hence we have different grades of Petrol for different uses ranging for your bikes to spacecrafts.You see crude oil is the raw material for petrol and from it, various derivatives are extracted. The finer and refined the derivative, the better the quality and efficiency of the fuel. So from crude oil there are various stages of refining extraction done that results in so many varieties of fuels with higher Octane ratings.The various Octane ratings of petrol are 87, 88, 89, 90, 91, 93 and 97, which symbolize purity and refinement in increasing order. On one end we have 87 octane which you use for your bike as unleaded and on the other extreme we have 97 octane which fuels the super bikes sold in India as Speed 97. So High Octane fuels are expensive because of high levels of refinement.

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