Honda 2010 Ridgeline Owner's Manual page 335

Do not use engine antif reeze or a
vinegar/water solution in the
windshield washer reservoir. Antif reeze
can damage your vehicle's paint, while
a vinegar/water solution can damage
the windshield washer pump. Use only
commercially-available windshield
washer f luid.
Windshield Washers, Automatic Transmission Fluid
Automatic Transmission Fluid
The transmission should be drained
and refilled with new fluid when this
service is shown on the information
display or multi-information display
(depending on models).
Check the fluid level with the engine
at normal operating temperature.
1. Park the vehicle on level ground.
Start the engine, let it run until the
radiator fan comes on, then shut
off the engine. For accurate
results, wait about 60 seconds (but
no longer than 90 seconds) before
doing step 2.
2010 Ridgeline
DIPSTICK
2. Remove the dipstick (yellow loop)
from the transmission, and wipe it
with a clean cloth.
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