They can store enough electricity to significantly reduce their petroleum use under typical driving conditions. (fueleconomy.gov)
A variable displacement two - stage oil pump provides high oil pressure under high speed and load, but switches to a low - pressure mode for improved fuel economy during typical driving conditions. (greencarcongress.com)
A variable displacement two - stage oil pump provides high oil pressure under high speed but switches to a low - pressure mode for improved fuel economy during typical driving conditions. (topspeed.com)