There is no US government standard for premium diesel. There is a list of 5 industry standards pertaining to premium diesel, only 2 have to be met for the fuel to be called premium. Cetane nember is only one of the 5 standards, and is seldom ever met.

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'10 Chrysler T&C Stow-N-Go White. Grandpa's ride.

'13 Chrysler 200 Touring Candy Red. Grandma's ride.

Age and cunning will always over come youth and vigor.