Subaru Legacy 2021 Owner's Manual page 482

476
Corrosion Protection
. Clean the vehicle (including the alloy
wheels) with water as soon as possible
when it has been splashed with sea water,
exposed to sea breezes, or driven on
roads treated with salt or other agents.
10-2. Corrosion Protection
Your SUBARU has been designed and
built to resist corrosion. Special materials
and protective finishes have been used on
most parts of the vehicle to help maintain
fine appearance, strength, and reliable
operation.
& Most Common Causes of
Corrosion
The most common causes of corrosion
are:
. The accumulation of moisture retaining
dirt and debris in body panel sections,
cavities, and other areas.
. Damage to paint and other protective
coatings caused by gravel and stone chips
or minor accidents.
Corrosion is accelerated on the vehicle
when:
. It is exposed to road salt or dust control
chemicals, or used in coastal areas where
there is more salt in the air, or in areas
where there is considerable industrial
pollution.
. It is driven in areas of high humidity,
especially when temperatures range just
above freezing.
. Dampness in certain parts of the
vehicle remains for a long time, even
though other parts of the vehicle may be
dry.
. High temperatures will cause corrosion
to parts of the vehicle which cannot dry
quickly due to lack of proper ventilation.
& To Help Prevent Corrosion
Wash the vehicle regularly to prevent
corrosion of the body and suspension
components. Also, wash the vehicle
promptly after driving on any of the
following surfaces.
. Roads that have been salted to prevent
them from freezing in winter
. Mud, sand, or gravel
. Coastal roads
After the winter has ended, it is recom-
mended that the underbody be given a
very thorough washing.
Before the beginning of winter, check the
condition of underbody components, such
as the exhaust system, fuel and brake
lines, brake cables, suspension, steering
system, floor pan, and fenders. If any of
them are found to be rusted, they should
be given an appropriate rust prevention
treatment or should be replaced. Contact
your SUBARU dealer to perform this kind