2009 Jeep Patriot Owner's Manual - Page 390

388 MAINTAINING YOUR VEHICLE Power Transfer Unit (PTU) - AWD/4WD Models Only Lubricant Selection Use only the manufacturer's recommended fluid. Refer to "Fluids, Lubricants, and Genuine Parts" in this section for the correct fluid type. Fluid Level Check Visually inspected the unit at each oil change for leakage. If leakage is detected, Check the fluid level by removing the fill plug. The fluid level should be maintained between the bottom of the fill hole to 1/8 in (4 mm) below the fill hole. Add fluid, if necessary, to maintain the proper level. Frequency Of Fluid Change Refer to the "Maintenance Schedule" in Section 8 for the correct maintenance interval. 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 those 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.