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Winter Diesel is a specialized fuel that was introduced by Indian Oil Corporation. Choose the incorrect statement about Winter Diesel :

  • A.It contains additives to maintain lower viscosity so that it can be used in temperatures as low as – 30°C.
  • B.It has lower cetane rating for high performance of engines.
  • C.It has low Sulphur content to ensure lesser deposition in engines.
  • D.It is highly suitable for high altitude and low-temperature regions such as Ladakh, where ordinary diesel can become unusable.

Answer: B

The incorrect statement is It has lower cetane rating for high performance of engines.

Winter diesel, introduced by Indian Oil for Ladakh and other cold regions, has a higher cetane number than ordinary diesel. The cetane number measures how readily diesel ignites under compression, and a higher number is what gives easy starting and good engine performance in severe cold.

The other statements are correct. Additives keep the fuel from waxing and thickening, so it stays usable down to about minus 30 degrees Celsius; it has low sulphur content, which means fewer deposits in the engine; and it is meant for high-altitude, low-temperature regions such as Ladakh, where ordinary diesel can gel and become unusable.

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