What Does a Dirty Gas Station Really Cost You? When customers pull into a gas station, convenience store, retail property, or commercial facility, they begin judging the property before they ever step out of their vehicle. Dirty concrete. Oil stains. Grease buildup. Gum. Fuel residue. Mold. Mildew. Stained sidewalks. Dirty fuel islands. A neglected gas station canopy. A grimy storefront. All of those things create an impression. For gas station operators, convenience store ow