Kamil is correct in part part that injector noozle's do wear from the fluid and nothing will fix that, but keeping them clean will help prevent early wear spray problems.

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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.