HONDA 2006 Accord Sedan - Owner's Manual - Manual (Page 205)

Oil is a major contributor to your
engine’s performance and longevity.
Always use a premium-grade 5W-20
detergent oil displaying the API
Certification Seal. This seal indicates
the oil is energy conserving, and that
it meets the American Petroleum
Institute’s latest requirements.
Install the engine oil fill cap, and
tighten it securely. Wait a few
minutes, and recheck the oil level.
Do not fill above the upper mark; you
could damage the engine. Unscrew and remove the engine oil
fill cap on top of the valve cover.
Pour in the oil slowly and carefully so
you do not spill any. Clean up any
spills immediately. Spilled oil could
damage components in the engine
compartment.
Recommended Engine Oil
Adding Engine Oil
204
ENGINE OIL FILL CAP ENGINE OIL FILL CAP
6-cylinder models 4-cylinder models