Ford 6L & 6.4L International Diesel Maintenance

Vehicle Service Reminder 09l04:

Oil and Filter 1, 2
6.0L Normal Operating Conditions: 2 Change every 7,500 miles
6.0L Special Operating Conditions*: Change every 5,000 miles or 200 hours
6.4L Normal Operating Conditions: Change every 10,000 miles
6.4L Special Operating Conditions*: Change every 5,000 miles or 200 hours

Fuel Filter change (both)1
6.0L Normal Operating Conditions: Change every 15,000 miles
6.0L Special Operating Conditions: Change every 10,000 miles or 400 hours
6.4L Normal Operating Conditions: Change every 20,000 miles
6.4L Special Operating Conditions: Change every 10,000 miles or 400 hours

Coolant Strength concentration check/change3
6.0L Normal Operating Conditions: Check every 6 months & initial change 105,000 miles; subsequent changes every 45,000 miles
6.0L Special Operating Conditions: Check every 15,000 miles or 600 hours & change every 45,000 miles or 1800 hours
6.4L Normal Operating Conditions: Check every 6 months & initial change 100,000 miles; subsequent changes every 50,000 miles
6.4L Special Operating Conditions: Check every 20,000 miles or 800 hours & change every 60,000 miles or 2400 hours

Coolant Strength nitrite strength check 3
6.0L Normal Operating Conditions: Optional check every 15,000 miles or 600 hours
6.0L Special Operating Conditions: Check every 15,000 miles or 600 hours
6.4L Normal Operating Conditions: Optional check every 20,000 miles or 800 hours
6.4L Special Operating Conditions: Check every 20,000 miles or 800 hours
* Special Operating Conditions: Extensive Towing, Long Idle Time (check engine hours), Extended Low Speed Driving, Biodiesel Fuel Use, or Off Road/Dusty Conditions
1 Use Motorcraft® Filters
2 Use the Right Oil: American Petroleum Institute (API) CJ-4 engine oil is required for the 6.4L engine to meet federal emission standards. Vehicles equipped with the 6.0L engine can benefit from this same high performance oil as well.
3 The coolant concentration should be maintained at a 50/50 mix (freeze protection to -34°F/-36°C) of coolant and distilled water. The level of coolant should be maintained at the "COLD FILL" range in the coolant reservoir. Refer to your Owner Guide for additional information.