2008 Arctic Cat 366 ATV Service Manual, Page 5Get this manual

2008 Arctic Cat 366 ATV Service Manual, Page 5

Break-In Procedure A new ATV and an overhauled ATV engine require "break-in" periodThe first 10 hours (or 200 miles) are
however, brief full-throttle accelerations and variations in driving speeds contribute to good engine break-inAfter the completion
of the break-in period, the engine oil and oil filter should be changedOther maintenance after break-in should include checking
of all prescribed adjustments and tightening of all fasteners RECOMMENDED ENGINE TRANSMISSION OIL ! CAUTION Any oil used
in place of the recommended oil could cause serious engine damageDo not use oils which contain graphite or molybdenum additivesThese
oils can adversely affect clutch operationAlso, not recommended are racing, vegetable, non-detergent, and castor-based oils
The recommended oil to use is Arctic Cat ACX AllWeather synthetic engine oil, which has been specifically formulated for
use in this Arctic Cat engineAlthough Arctic Cat ACX All-Weather synthetic engine oil is the only oil recommended for use