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Which of the following is a correct oil viscosity for hybrid electric vehicles? A. SAE 5W-30...

Which of the following is a correct oil viscosity for hybrid electric vehicles? A. SAE 5W-30 B. SAE 5W-20 C. SAE 10W-30 D. SAE 0W-10

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Answer #1

The correct oil viscosity for hybrid electric vehicles is

D) SAE 0W-10

This viscocity grade minimizes the lubricant hydrodynamic friction to allow significant fuel economy benefits especially when the oil is cold and also in other temperature conditions. This very low viscosity grade improves oil flow at start up, delivers faster oil pressure build up, faster rev raisings and allows reaching operating temperature faster.

It also meets needs of HEV  where multiples unexpected stops and starts of the Gasoline engine occurs during the different operating phases of the hybrid vehicle.

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