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Is there is any advantage using Speed petrol or Speed Diesel

Published On : 2016-10-18 19:54:16.0 Riju
Category : Diesel
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Ordinary petrol has an octane number around 85. Speed petrol has an octane number of around 93 or even higher. Higher octane number is required when compression ratio of the engine is higher. Because of higher octane number pre-ignition is avoided. Thus giving a better performance. Sports vehicles have higher compression ratio. Hence the drivers of these use Speed petrol.

In an ordinary engine, speed petrol might not have that big of an advantage but as compression ratio increases one requires a petrol which can cope up.

High Speed Diesel has good cetane number 56-60 whereas normal diesel has cetane number ranging from 45-55. So, High Speed Diesel have better combustion thereby achieving good performance as well as cleaner emissions. Now a days, High Speed Diesel has special additives that even cleans the carbon deposits on fuel injector.

Hi-Speed Diesel contains detergents that enhance combustion through a process of cleaning up of fuel injectors that are blocked with harmful deposits. This improves spray pattern and prevents the injectors from "dribbling" with diesel. These detergents not only clean the injectors but also prevent the formation of new deposits making it work as good as new. HSD is normally used as a fuel for high speed diesel engines operating above 750 r.p.m. i.e. buses, lorries, generating sets, locomotive, pumping sets etc. Gas Turbines requiring distillate fuels normally make use of HSD as fuel.

CarDekho Helpdesk on 2016-10-19 11:45:59.0
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