Ford Diesel 2011 Supplement Manual page 89

Use of non-Ultra Low Sulfur Diesel (ULSD) fuel - vehicles operated where
ULSD fuel isn't required/available
Every 2,500 miles (4,000 km) or
3 months (if using high sulfur fuel
with more than 500 ppm sulfur)
Every 5,000 miles (8,000 km) or
6 months (if using high sulfur fuel
with less than 500 ppm sulfur)
Reset your Intelligent Oil Life Monitor™ after each engine oil and filter
change; refer to the Instrument Cluster chapter of the Owner's Guide.
2011 Diesel (eco)
Supplement, 5th Printing
USA (fus)
Scheduled Maintenance Guide
– Change engine oil and filter
– Change engine oil and filter
89