Honda 2011 Ridgeline Owner's Manual page 331

Synthetic Oil
You may use a synthetic motor oil if
it meets the same requirements
given for a conventional motor oil: it
displays the API Certification Seal,
and it is the proper weight. You must
follow the oil and filter change
intervals shown on the odometer/
trip meter display or on the multi-
information display.
Engine Oil Additives
Your vehicle does not require any oil
additives. Additives may adversely
affect the engine or transmission
performance and durability.
Adding Engine Oil, Changing the Engine Oil and Filter
Changing the Engine Oil and
Filter
Always change the oil and filter
according to the maintenance
messages shown on the information
display or multi-information display
(depending on models). The oil and
filter collect contaminants that can
damage your engine if they are not
removed regularly.
Changing the oil and filter requires
special tools and access from
underneath the vehicle. The vehicle
should be raised on a service station-
type hydraulic lift for this service.
Unless you have the knowledge and
proper equipment, you should have
this maintenance done by a skilled
mechanic.
1. Run the engine until it reaches
normal operating temperature,
then shut it off.
2011 Ridgeline
WASHER DRAIN BOLT
2. Open the hood, and remove the
engine oil fill cap. Remove the oil
drain bolt and washer from the
bottom of the engine. Drain the oil
into an appropriate container.
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