{"id":583,"date":"2026-06-23T00:05:28","date_gmt":"2026-06-23T04:05:28","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2008-dodge-ram-2500-hd-pickup-6-7l-6-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-06-23T00:05:28","modified_gmt":"2026-06-23T04:05:28","slug":"2008-dodge-ram-2500-hd-pickup-6-7l-6-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2008-dodge-ram-2500-hd-pickup-6-7l-6-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2008 Dodge Ram 2500 HD 6.7L Diesel Oil & Maintenance Guide"},"content":{"rendered":"
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\"AMSOIL
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

For the 2008 Dodge Ram 2500 HD with the 6.7L 6-cylinder diesel engine, the required oil capacity is 12 quarts<\/strong> (including filter). The preferred viscosity for temperatures above -18\u00b0C is SAE 15W-40<\/strong>, though 5W-40<\/strong> synthetic oil is recommended for all temperatures to prevent severe engine damage in ambient temperatures below 0\u00b0F (-18\u00b0C). AMSOIL recommends using Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil<\/strong> or Heavy-Duty 100% Synthetic Diesel Oil<\/strong>.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the vehicle lookup for the 6.7L 6-cylinder Engine Code [A] A Diesel Turbo, the following products are recommended to maintain peak performance and engine longevity.<\/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 Specifications:<\/strong> The AMSOIL lookup note specifies use of API CJ\/CK-4 oil meeting MS-10902 standards. Oil meeting Cummins CES 20081 standards may also be used. Low ash diesel engine oil is required.<\/p>\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<\/td>\n46930-EA<\/a><\/td>\n<\/tr>\n
Donaldson P-Series Heavy Duty Air Filters<\/td>\nP616743-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Coolant Recommendation<\/h3>\n
\n\n\n\n
Product Name<\/th>\nCode<\/th>\n<\/tr>\n
AMSOIL Passenger Car & Light Truck Antifreeze & Coolant<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Quick Summary: What oil does a 2008 Dodge Ram 2500 HD 6.7L take?<\/h2>\n

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

Proper lubrication is vital for the 6.7L Cummins diesel engine to manage high cylinder pressures and heat.<\/p>\n

What oil viscosity should I use?<\/h3>\n

The choice of viscosity depends heavily on your ambient operating temperatures.<\/p>\n

\n\n\n\n\n
Condition<\/th>\nRecommended Viscosity<\/th>\n<\/tr>\n
Above -18\u00b0C<\/td>\nSAE 15W-40 (Preferred)<\/td>\n<\/tr>\n
All Temperatures<\/td>\nSAE 5W-40 Synthetic<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Warning:<\/strong> Failure to use SAE 5W-40 synthetic engine oil in ambient temperatures below 0\u00b0F (-18\u00b0C) could result in severe engine damage.<\/p>\n

How much oil does it take with a filter change?<\/h3>\n

The total capacity for this engine is 12 quarts<\/strong> when replacing the filter. To ensure accuracy during an oil change, follow these steps:<\/p>\n