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Engine Oil
e purpose of engine oil is to lubricate the cylinders of the engine
and ensure that parts that regularly move against each other have
reduced friction to reduce wear and noise between components. An
oil lter keeps metal particles and water out of the engine’s interior.
Engines performing on regular oil should have the oil drained and
replaced every 100 hours while synthetic oil typically should be
drained and replaced every 200 hours. In either case, if your Regal
boat has endured one year since its last oil change, the oil should be
changed again. e oil lter should be replaced every time the oil
is changed, or upon damage. It is normal for the rst 50 hours of
operation to require frequent changes until the engine is seasoned.
Other Component Lubrication
System components may also require their own lubrication schedule.
Steering systems, throttle cable, shi cable, stern drive u-joint
splines and o-rings, and the engine coupler may require grease,
oil, or other lubrication. Refer to your engine owner’s manual for
speci c details.
LOWER UNIT LUBRICATION
Your outboard uses power trim uid, drive oil, and propsha
lubricants to reduce wear on moving components. ese uids
should be checked according to the recommended maintenance
procedures determined by the outboard manufacturer.
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