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48 Maintenance and Service
Extended Life Coolant Change Interval
Extended life coolant will test as out of additives (SCA), but SCA should not be
added. Shortened engine life may be the result of adding SCA.
Replace coolant every 960 000 km (600,000 miles), 12,000 hours or every
four years, whichever comes first.
An extender package must be added to the cooling system after 480 000 km
(300,000 miles), 6,000 hours or two years, whichever comes first.
DO NOT add supplement coolant additives (SCA) to extended life
coolant.
Should the extended life coolant system become contaminated with regular
coolant exceeding 10% of the system's total capacity or if SCA is added to
extended life coolant, drain the system and refill with new extended life
coolant or regular coolant.
Extended Lift Coolant Filter Change Interval
Hot engine. Keep clear of all hot engine parts and fluids. A hot engine and
fluids can cause serious burns.
DO NOT use a filter that contains SCA. Damage to components can result.
Replace the extended life coolant filter every 240 000 km (150,000 miles),
2,500 hours or 15 months, whichever comes first, to prevent external rust
damage to the filter walls.
USA22978.bk.book Page 48 Wednesday, July 9, 2008 9:09 AM