Valvoline® - Dodge Ram 1500 New Generation Big Horn / Laramie / Laramie Longhorn / Limited / Lone Star / Rebel / Sport / Tradesman Gas 2020 High Mileage™ SAE 5W-20 Synthetic Blend Motor Oil
Mobil 1® - Dodge Ram 1500 New Generation Big Horn / Laramie / Laramie Longhorn / Limited / Lone Star / Rebel / Sport / Tradesman Gas 2020 Truck & SUV™ SAE 5W-20 Full Synthetic Motor Oil
2002-2008 Dodge Ram 1500 Transfer Case Oil Replacement (2002, 2003, 2004, 2005, 2006, 2007, 2008) - iFixit Repair Guide