HONDA 2010 Odyssey - Manual (Page 429)

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. Clean up any spills
immediately. Spilled oil could
damage components in the engine
compartment.
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.
Reinstall the engine oil fill cap, and
tighten it securely. Wait a few
minutes, and recheck the oil level on
the engine oil dipstick. Do not fill
above the upper mark; you could
damage the engine.
Adding Engine Oil
Recommended Engine Oil
426
ENGINE OIL FILL CAP
API CERTIFICATION SEAL
2010 Odyssey