{"id":356,"date":"2026-06-03T08:26:22","date_gmt":"2026-06-03T12:26:22","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2004-dodge-ram-2500-hd-pickup-5-9l-6-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-06-03T08:26:22","modified_gmt":"2026-06-03T12:26:22","slug":"2004-dodge-ram-2500-hd-pickup-5-9l-6-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2004-dodge-ram-2500-hd-pickup-5-9l-6-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2004 Dodge Ram 2500 HD 5.9L Diesel Oil & Filter Guide"},"content":{"rendered":"
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\"AMSOIL
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

What oil does a 2004 Dodge Ram 2500 HD 5.9L Diesel take?<\/h2>\n

For the 2004 Dodge Ram 2500 HD with the 5.9L 6-cylinder diesel turbo engine, the recommended oil capacity is 12 quarts (including filter replacement). The AMSOIL lookup recommends using a 15W-40 viscosity for temperatures above -18\u00b0C, or a synthetic-based 5W-40 for all temperature ranges. For optimal protection, AMSOIL lists the Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the AMSOIL lookup for your 2004 Dodge Ram 2500 HD, here are the recommended fluids and filtration components to maintain engine health and performance.<\/p>\n

Engine Oil Recommendations<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nViscosity<\/th>\nCode<\/th>\n<\/tr>\n
AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil<\/td>\n5W-40<\/a><\/td>\nDEOQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 5W-40 Heavy-Duty 100% Synthetic Diesel Oil<\/td>\n5W-40<\/a><\/td>\nADOQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Oil Filter Recommendations<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nCode<\/th>\n<\/tr>\n
AMSOIL Oil Filter<\/td>\nEAO80-EA<\/a><\/td>\n<\/tr>\n
WIX XP Oil Filter<\/td>\n57620XP-EA<\/a><\/td>\n<\/tr>\n
WIX Oil Filter<\/td>\n57620-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Air Filter Recommendations<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nCode<\/th>\n<\/tr>\n
WIX Air Filter (2″ Pleat)<\/td>\n42846-EA<\/a><\/td>\n<\/tr>\n
WIX Air Filter (4″ Pleat)<\/td>\n49946-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Specifications & Details<\/h2>\n

Proper lubrication is vital for the 5.9L Cummins diesel engine to manage high torque and heavy-duty workloads. Following the correct viscosity and capacity ensures the turbocharger and internal components remain protected.<\/p>\n

Oil Viscosity & Grade<\/h3>\n
\n\n\n\n\n\n
Specification<\/th>\nDetails<\/th>\n<\/tr>\n
Oil Grade<\/td>\nCI-4<\/td>\n<\/tr>\n
Viscosity (Above -18\u00b0C)<\/td>\n15W-40<\/td>\n<\/tr>\n
Viscosity (All Temps)<\/td>\n5W-40 (Synthetic based)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Oil Capacity & Torque<\/h3>\n
\n\n\n\n\n
Metric<\/th>\nValue<\/th>\n<\/tr>\n
Capacity (with filter)<\/td>\n12 quarts<\/td>\n<\/tr>\n
Oil Drain Plug Torque<\/td>\n37 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note: After refilling, always check the oil level to ensure accuracy.<\/em><\/p>\n

Diesel maintenance notes for this vehicle<\/h2>\n

Maintaining a 5.9L Cummins diesel requires attention to filtration and fluid quality. Because these engines are often used for heavy hauling and towing, they are subjected to high-stress operating conditions.<\/p>\n