FORD 2010 Focus v.3 - Manual (Page 257)

6. Replace the air filter housing cover and secure the clamps. Be sure
that the air cleaner cover tabs are engaged into the slots of the air
cleaner housing.
Note: Failure to use the correct air filter element may result in severe
engine damage. The customer warranty may be void for any damage to
the engine if the correct air filter element is not used.
MOTORCRAFT PART NUMBERS
Component 2.0L I4 engine
Air filter element FA-1890 1
Oil filter FL-910 2
Battery BXL-96-R
Spark plugs 3
1 Failure to use the correct air filter element may result in severe engine
damage. The customer warranty may be void for any damage to the
engine if the correct air filter element is not used.
2 Only use the specified replacement oil filter. The use of a non-specified
oil filter can result in engine damage.
3 For spark plug replacement, see your authorized dealer. Refer to
scheduled maintenance information for the appropriate intervals for
changing the spark plugs.
Replace the spark plugs with ones that meet Ford material and
design specifications for your vehicle, such as Motorcraft
௡ or
equivalent replacement parts. The customer warranty may be
void for any damage to the engine if such spark plugs are not
used.
Maintenance and Specifications
257
2010 Focus (foc)
Owners Guide, 3rd Printing
USA (fus)