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1991
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Forward Control 7.4 N
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Service Intervals & Specifications
Service Intervals & Specifications
REPLACEMENT INTERVALS
Component
Interval (Miles)
Air Filter
30,000
Coolant
30,000
Fuel Filter
(1)
60,000
Oil & Filter
(2)
7500
Spark Plugs
30,000
(1)
On diesel engines, replace every 30,000 miles.
(2)
On diesel engines, replace every 5000 miles.