2009 Dodge Charger Owner Manual - Page 408

406 MAINTAINING YOUR VEHICLE The front differential fill plug is located on the outer cover near the halfshaft attachment. To inspect the differential fluid level, remove the fill plug. The fluid level should be even with or slightly below the bottom of the hole. Fluid Changes Refer to the "Maintenance Schedule" in Section 8 for proper maintenance intervals. Appearance Care and Protection from Corrosion Protection of Body and Paint from Corrosion Vehicle body care requirements vary according to geographic locations and usage. Chemicals that make roads passable in snow and ice, and chemicals that are sprayed on trees and road surfaces during other seasons, are highly corrosive to the metal in your vehicle. Outside parking, which exposes your vehicle to airborne contaminants, road surfaces on which the vehicle is operated, extreme hot or cold weather and other extreme conditions will have an adverse effect on paint, metal trim, and underbody protection. The following maintenance recommendations will enable you to obtain maximum benefit from the corrosion resistance built into your vehicle. What Causes Corrosion? Corrosion is the result of deterioration or removal of paint and protective coatings from your vehicle. The most common causes are: • Road salt, dirt, and moisture accumulation. • Stone and gravel impact. • Insects, tree sap, and tar. • Salt in the air near seacoast localities. • Atmospheric fallout/industrial pollutants.