(h)Severe service is when the vehicle is mainly driven
under one or more of these conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police, or delivery
service.
(i)Drain, ush, and re ll cooling system. This service
can be complex; you should have your retailer perform
this service. See Engine Coolant on page 5-26 for
what to use. Inspect hoses. Clean radiator, condenser,
pressure cap, and ller neck. Pressure test the
cooling system and pressure cap.
(j)A uid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired and
the uid level checked. Add uid if needed.(k)Or every 12 months, whichever occurs rst. If you
drive regularly under dusty conditions, the lter may
require replacement more often.
(l)If you drive regularly under dusty conditions, inspect
the lter at each engine oil change.
(m)Change the uid the rst time the vehicle is serviced
after 100,000 miles (166 000 km) and when the
vehicle is serviced after each subsequent 50,000 miles
(83 000 km).
(n)Severe service is when the vehicle is mainly driven
under one or more of these conditions:
In very high temperatures — over 110°F (43°C).
In very low temperatures — under -20°F (-29°C).
When doing frequent trailer towing.
(p)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
6-10
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