{"id":838,"date":"2026-07-09T03:18:27","date_gmt":"2026-07-09T07:18:27","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2009-ford-f-450-pickup-6-4l-8-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-07-09T03:18:27","modified_gmt":"2026-07-09T07:18:27","slug":"2009-ford-f-450-pickup-6-4l-8-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2009-ford-f-450-pickup-6-4l-8-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2009 Ford F-450 6.4L 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 2009 Ford F-450 Pickup equipped with the 6.4L 8-cylinder Diesel Turbo (Engine Code R), the oil capacity is 15 quarts with a filter change. Recommended viscosities include 10W-30 for temperatures between -18 to 10\u00b0C, and 15W-40 or 5W-40 for temperatures above -7\u00b0C or -29\u00b0C respectively. AMSOIL recommends using Signature Series Max-Duty Synthetic Diesel Oil for high-performance protection.<\/p>\n

What oil does a 2009 Ford F-450 6.4L take?<\/h2>\n

The 2009 Ford F-450 with the 6.4L diesel engine requires specific viscosities based on ambient operating temperatures. For extreme cold (below 10\u00b0C), 0W-30 or 0W-40 is appropriate. In moderate ranges (-18 to 10\u00b0C), 10W-30 is used. For warmer climates or heavy duty use, 5W-40 or 15W-40 is recommended.<\/p>\n

The total engine oil capacity for the 2009 Ford F-450 6.4L is 15 quarts when including the oil filter. It is essential to check the oil level after refilling to ensure accuracy.<\/p>\n

AMSOIL product recommendations<\/h2>\n

The following AMSOIL products are specifically listed for your 2009 Ford F-450 6.4L diesel engine to assist with maintenance and performance.<\/p>\n

Engine Oil Options<\/h3>\n
\n\n\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL Signature Series 10W-30 100% Synthetic Max-Duty Diesel Oil<\/td>\nDTTQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil<\/td>\nDEOQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 10W-30 Heavy-Duty 100% Synthetic Diesel Oil<\/td>\nADNQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 5W-40 Heavy-Duty 100% Synthetic Diesel Oil<\/td>\nADOQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Oil Filter Options<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL Oil Filter [1]<\/td>\nEA15K88-EA<\/a><\/td>\n<\/tr>\n
WIX XP Oil Filter<\/td>\n57312XP-EA<\/a><\/td>\n<\/tr>\n
AMSOIL SDF88 Oil Filter<\/td>\nSDF88-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Other Essential Fluids & Filters<\/h3>\n
\n\n\n\n\n\n
Component<\/th>\nProduct\/Code<\/th>\n<\/tr>\n
Air Filter<\/td>\nP613522-EA<\/a><\/td>\n<\/tr>\n
Antifreeze\/Coolant<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n
Antifreeze (Concentrated)<\/td>\nANT1G-EA<\/a><\/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
Below 10\u00b0C<\/td>\n0W-30, 0W-40<\/td>\n<\/tr>\n
-18 to 10\u00b0C<\/td>\n10W-30<\/td>\n<\/tr>\n
Above -29\u00b0C<\/td>\n5W-40 (or 15W-40 for heavy duty\/towing)<\/td>\n<\/tr>\n
Above -7\u00b0C<\/td>\n15W-40 (or 5W-40 for heavy duty\/towing)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Specifications & Notes<\/h3>\n

The AMSOIL lookup oil grade is SEO84. The AMSOIL lookup note references Ford Material Engineering Specification WSS-M2C171-F1 for this application. It notes that Ford recommends meeting the WSS-M2C171-F1 specification rather than CK-4, as testing on some CK-4 formulations showed inadequate wear protection compared to earlier CJ-4 formulations.<\/p>\n

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

Oil Service Specifications<\/h3>\n
\n\n\n\n\n
Specification<\/th>\nValue<\/th>\n<\/tr>\n
Capacity (with filter)<\/td>\n15 Quarts<\/td>\n<\/tr>\n
Oil Drain Plug Torque<\/td>\n32 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Common diesel oil-related concerns and how AMSOIL products may help<\/h2>\n

Diesel engines operating under heavy loads face unique lubrication challenges. Below is a summary of common concerns and how specific AMSOIL products can support engine health.<\/p>\n

\n\n\n\n\n\n
Concern<\/th>\nWhy it matters<\/th>\nAMSOIL Product<\/th>\nHow it may help<\/th>\nLimitation<\/th>\n<\/tr>\n
Heavy-duty towing<\/td>\nIncreases engine heat and stress<\/td>\nDEOQT-EA<\/a><\/td>\nMaintains proper viscosity under load<\/td>\nRequires regular monitoring<\/td>\n<\/tr>\n
Engine Wear<\/td>\nContaminants can cause damage<\/td>\nDTTQT-EA<\/a><\/td>\nDelivers up to 6X more wear protection<\/td>\nNot a repair for existing damage<\/td>\n<\/tr>\n
Extreme Temperatures<\/td>\nAffects fluid flow and thickness<\/td>\nADNQT-EA<\/a><\/td>\nExcels in extreme temperature ranges<\/td>\nMust match viscosity to temp<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

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

Maintenance of the 6.4L Power Stroke engine should focus on high-torque demands and heavy towing requirements. For vehicles used for trailer towing, AMSOIL recommends using 5W-40 or 15W-40 viscosity oils to ensure adequate protection under load.<\/p>\n

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

Owners of the Ford F-450 Super Duty should prioritize several key areas:<\/p>\n