FORD 2012 Fiesta v.3 - Manual (Page 300)

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
Your vehicle is equipped with a Motorcraft
௡ maintenance-free battery
which normally does not require additional water during its life of
service.
Note: 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.
If you see any corrosion on the
battery or terminals, remove the cables from the terminals and clean
with a wire brush. You can neutralize the acid with a solution of baking
soda and water.
It is recommended that the negative battery cable terminal be
disconnected from the battery if you plan to store your vehicle for an
extended period of time. This will minimize the discharge of your battery
during storage.
Note: Electrical or electronic accessories or components added to the
vehicle by the dealer or the owner may adversely affect battery
performance and durability.
Maintenance and Specifications
300
2012 Fiesta (fie)
Owners Guide, 3rd Printing
USA (fus)