I've been using it for a few years. SN/SM rated and confirmed on the PQIA website; what is not to love?
BTW, in my area the full syn after rebate is the same price as semi-syn after rebate. No clue why CITGO would do that....
I'm not seeing this in your owner's manual; on pg 499, it only lists 0w-20 as being acceptable.
Recommended Engine Oil
Oil is a major contributor to your engine's
performance and longevity. If you drive the
vehicle with insufficient or deteriorated oil,
the engine may fail or be damaged.
This seal indicates the oil is energy conserving
and that it meets the American Petroleum
Institute’s latest requirements.
Use a Genuine Honda Motor Oil or another
commercial engine oil of suitable viscosity for
the ambient temperature as shown.
■ Synthetic oil
You may also use synthetic motor oil if it is labeled with the API Certification Seal
and is the specified viscosity grade.
• Genuine Honda Motor Oil
• Premium-grade 0W-20 detergent oil with an API Certification Seal on the
It's not the grade Honda recommends and you live in a place that can see real cold over the winter.
I've never seen anything in writing from Honda allowing the use of a 5W-20 in these engines in this country.
If you change at 10-15% MM using the recommended grade, cost per mile ends up pretty low anyway.