FORD 2011 F-550 v.2 - Manual (Page 370)

To protect your engine and engine’s warranty, use Motorcraft
௡ SAE
5W-20 or an equivalent SAE 5W-20 oil meeting Ford specification
WSS-M2C930-A. SAE 5W-20 oil provides optimum fuel economy and
durability performance meeting all requirements for your
vehicle’s engine. Refer to Maintenance product specifications and
capacities later in this chapter for more information.
Do not use supplemental engine oil additives, cleaners or other engine
treatments. They are unnecessary and could lead to engine damage that
is not covered by Ford warranty.
Change your engine oil and filter according to the appropriate schedule
listed in the scheduled maintenance information.
Ford production and Motorcraft
௡ replacement oil filters are designed for
added engine protection and long life. If a replacement oil filter is used
that does not meet Ford material and design specifications, start-up
engine noises or knock may be experienced.
It is recommended you use the appropriate Motorcraft
௡ oil filter or
another with equivalent performance for your engine application.
BATTERY
WARNING: This vehicle
may be equipped with more
than one battery, removal of cable
from only one battery does not
disconnect the vehicle electrical
system. Be sure to disconnect
cables from all batteries when
disconnecting power. Failure to do
so may cause serious personal
injury or property damage.
Your vehicle is equipped with a Motorcraft
௡ maintenance-free battery
which normally does not require additional water during its life of
service.
If your battery has a cover/shield, make sure it is reinstalled
after the battery has been cleaned or replaced.
For longer, trouble-free operation, keep the top of the battery clean and
dry. Also, make certain the battery cables are always tightly fastened to
the battery terminals.
Maintenance and Specifications
370
2011 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)