MAINTAINING YOUR VEHICLECONTENTS Engine Compartment — 3.7L . . . . . . . . . . . . . 516 Engine Compartment — 4.7L . . . . . . . . . . . . . 517 Engine Compartment — 5.7L . . . . . . . . . . . . . 518 Onboard Diagnostic System (OBD II) . . . . . . . 519▫ Loose Fuel Filler Cap Message . . . . . . . . . . . 519 Emissions Inspection And MaintenancePrograms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 520 Replacement Parts . . . . . . . . . . . . . . . . . . . . . 521 Dealer Service . . . . . . . . . . . . . . . . . . . . . . . . 522 Maintenance Procedures . . . . . . . . . . . . . . . . . 522▫ Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 523▫ Engine Oil Filter . . . . . . . . . . . . . . . . . . . . . 525▫ Engine Air Cleaner Filter . . . . . . . . . . . . . . . 526▫ Maintenance-Free Battery . . . . . . . . . . . . . . 526▫ Air Conditioner Maintenance . . . . . . . . . . . . 528▫ Front Driveshaft Lubrication – 2500/3500(Four-Wheel Drive) Models (Ram TrucksOnly) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5297