{"id":567,"date":"2026-06-21T12:13:36","date_gmt":"2026-06-21T16:13:36","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2023-ford-f-350-pickup-6-7l-8-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-06-21T12:13:36","modified_gmt":"2026-06-21T16:13:36","slug":"2023-ford-f-350-pickup-6-7l-8-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2023-ford-f-350-pickup-6-7l-8-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2023 Ford F-350 6.7L Diesel Maintenance: Oil Capacity, Viscosity & Filter Guide"},"content":{"rendered":"
\n
\n
\"AMSOIL
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

For the 2023 Ford F-350 Pickup with the 6.7L 8-cylinder Engine Code [M] Diesel Turbo, the engine oil capacity is 15 quarts with a filter change. Recommended viscosities include 10W-30 for normal usage and 5W-40 for severe operations. AMSOIL recommends using Signature Series 10W-30 Max-Duty Diesel Oil<\/a> (DTTQT-EA<\/a>) paired with an AMSOIL Oil Filter<\/a> (EAO98-EA<\/a>).<\/p>\n

What oil does a 2023 Ford F-350 6.7L Diesel take?<\/h2>\n

The 2023 Ford F-350 with the 6.7L diesel engine requires specific viscosities depending on operating temperatures and usage severity. The AMSOIL lookup oil grade is SEO84. For normal usage, the manufacturer recommends 10W-30, while 5W-40 is recommended for severe operations. If using biodiesel fuel blends (up to B20), the use of 5W-40 or 15W-40 is recommended.<\/p>\n

The total engine oil capacity for the 6.7L diesel engine in the 2023 Ford F-350 is 15 quarts when performing a service that includes a new oil filter. It is critical to check the oil level after refilling to ensure accuracy.<\/p>\n

AMSOIL product recommendations<\/h2>\n

The following AMSOIL products are recommended for the 2023 Ford F-350 6.7L Diesel engine based on available application data.<\/p>\n

Engine Oil Options<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nCode<\/th>\n<\/tr>\n
AMSOIL Signature Series 10W-30 100% Synthetic Max-Duty Diesel Oil<\/td>\nDTTQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 10W-30 Heavy-Duty 100% Synthetic Diesel Oil<\/td>\nADNQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Oil Filter Options<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nCode<\/th>\n<\/tr>\n
AMSOIL Oil Filter<\/td>\nEAO98-EA<\/a><\/td>\n<\/tr>\n
WIX Oil Filter<\/td>\n57151-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Coolant & Transmission<\/h3>\n
\n\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
AMSOIL Propylene Glycol Antifreeze and Engine Coolant<\/td>\nANT1G-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Signature Series ULV 100% Synthetic ATF<\/td>\nULVPK-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Specifications<\/h3>\n
\n\n\n\n\n
Specification<\/th>\nDetails<\/th>\n<\/tr>\n
Oil Capacity<\/td>\n15 quarts (with filter)<\/td>\n<\/tr>\n
Drain Plug Torque<\/td>\n19 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Viscosity Guide<\/h3>\n
\n\n\n\n\n\n\n
Temperature Range<\/th>\nRecommended Viscosity<\/th>\n<\/tr>\n
All Temperatures<\/td>\n0W-40<\/td>\n<\/tr>\n
Above -18\u00b0C<\/td>\n10W-30 (Normal) \/ 5W-40 (Severe)<\/td>\n<\/tr>\n
Above -7\u00b0C<\/td>\n10W-30 (Normal) \/ 5W-40 (Severe)<\/td>\n<\/tr>\n
Above -29\u00b0C<\/td>\n10W-30 (Normal) \/ 5W-40 (Severe)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note: If biodiesel fuel blends (B20 max) are used, the use of 5W-40 or 15W-40 oil is recommended.<\/p>\n

How much oil does it take with a filter change?<\/h2>\n

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

Maintaining a Power Stroke diesel engine requires attention to high-stress components. Owners should focus on rigorous fuel system care, cooling system integrity, and exhaust aftertreatment maintenance to ensure long-term reliability. Because these engines are designed for heavy-duty work cycles, following specific viscosity recommendations is vital for protecting turbochargers and managing soot loading.<\/p>\n

Common diesel oil-related concerns and how AMSOIL products may help<\/h2>\n
\n\n\n\n\n\n
Concern<\/th>\nWhy it matters<\/th>\nAMSOIL product from this lookup<\/th>\nHow it may help<\/th>\nImportant limitation<\/th>\n<\/tr>\n
Severe-service towing<\/td>\nIncreases engine heat and stress.<\/td>\nDTTQT-EA<\/a><\/td>\nProvides outstanding extreme-pressure protection.<\/td>\nRequires proper viscosity selection.<\/td>\n<\/tr>\n
Engine Wear<\/td>\nContaminants can cause damage.<\/td>\nEAO98-EA<\/a><\/td>\nProvides 99% filtering efficiency at 20 microns.<\/td>\nFilter must be replaced per service intervals.<\/td>\n<\/tr>\n
Extreme Temperatures<\/td>\nAffects oil flow and viscosity.<\/td>\nDTTQT-EA<\/a><\/td>\nExcels in extreme temperatures.<\/td>\nNot confirmed from source data for specific limits.<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Common maintenance concerns for this vehicle<\/h2>\n