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Winter Diesel

2020 JUL 6

Preliminary   > Science and Technology   >   Innovation and New technologies   >   New age technologies in energy

IN NEWS:

  • Indian Oil Corporation (IOC) has sought approval of the armed forces for supply of its winter diesel to the armed forces in Ladakh and other high altitude regions.

ABOUT THE PRODUCT:

  • Winter diesel is a specialised fuel for use high altitude regions and low-temperature regions such as Ladakh, where ordinary diesel can become unusable.
  • The flow characteristics of regular diesel change at such low temperatures and using it may be detrimental to vehicles.
  • Winter diesel contains additives to maintain lower viscosity can be used in temperatures as low as -30°C .
  • Besides this, it also has higher cetane rating — an indicator of the combustion speed of diesel and compression needed for ignition— and lower sulphur content, which would lead to lower deposits in engines and better performance.
  • Before the launch of winter diesel, consumers in areas that reached such low temperatures were using kerosene to dilute diesel to make it usable, which would lead to more air pollution.

PRELIMS QUESTION:

Q. Consider the following statements regarding winter diesel:

  1. It has comparatively lower Sulphur content than regular diesel.
  2. It is used in high altitude areas instead of regular diesel.

Which among the above statements is/are correct:

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2

Answer to Prelims question