OPERATOR'S MANUAL

Table Of Contents
Cooling System Preventive Maintenance
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PB1318 3/01 Model 330
damaged or frayed wires. Contact your Authorized Ser-
vice Center or the manufacturer of the heater if you are
in need of repairs or information.
CAUTION: Always unplug the block heater
before starting your engine. Damage to the cool-
ing system could occur if not turned OFF
(unplugged).
Use a solution of half ethylene glycol antifreeze and half
water for best heater performance. Do not use more than 65
percent concentration of antifreeze, as a shortened heater
life will result.
After servicing the cooling system, operate the vehicle for a
day or two before using the heater. Trapped air inside the
engine needs time to escape.