Congrats on your purchase and welcome to the forum.
The concensus is that the factory oil is very good. I went 12,000 miles on the factory oil before I changed it and I sent a sample to Blackstone laboratories and the results came back that the oil was still good to go a bit more.
So, that is my experience with factory filled oil and Honda filter. So, up to you to decide when to dump it since it is your car. But know that the oil can easily last over 10,000 miles by the time and the car's MM starts telling you to change it.
As for the choice of engine oil recommendations, the manual says it all. Use any good brand of 0W20 with a good filter. Even if you go to Walmart and get the cheapest full synthetic 0W20 like SuperTech with a decent filter like Fram. All that will work very well in your car. It is your car, so feel feee to take advice from here or modify the advice according to what you want or feel is comfortable to you. It is your car and your money. Do as you please.
For some people like me, I use any oil I want to in my car. I have used and mixed 0W20, 0W30, 5W20 and 5W30 to use at the same time. I am currently using ONLY 0W16 (which is NOT recommended for my car) for a total of 6 oil changes. Then I will go back to using 0W20. I bought my 2020 HAH brand new and it now has 50,000 miles in only 16 months and car drives like the day I drove it off the showroom floor. So, 0W16 works great in my car!
Do not be fooled by the additive packages that all the oil brands claim they have. All oil brands have their own additives that is still good. Choose any decent brand (whether top brand name or walmart brand) and change your oil according to your MM and your car would last forever.
You mentioned you are very picky and you want your car to stay in top shape so it can last a very long time.
Well, keep your car's maintenence according to Honda's recommendation and your car should last forever. Or modify some things according to your comfort level or do whatever you want to do to keep your car in top shape since it is your car and if you do something wrong, you alone get to deal with the consequences.
I believe and assume that each person on the forum is probably taking very good care of their car. So, join us as we each share tips on how to take very good care of our cars. Each may be doing some things a bit differently, but I believe each of our cars should last to over 200,000 miles. There are some people who do not drive their cars often. For those, I am sure those cars can easily last over 20 years and still going ok.
So, treat your car well and it will treat you well also. Though along the way, we will see some people losing an engine or a transmission or a hybrid battery or other things with no fault of theirs but that it was meant to be because they were destined to fail since leaving the factory assembly line.
I do enjoy documenting how I take care of my car and everything I do to it. I had a brand new 2008 Nissan Maxima that lasted 12 years with me and died when it had 268,000 miles. I expect my Honda to beat my Maxima in mileage before it ever dies and needs to be replaced.
If you are bored and want to see some suggestions of what I have done to my car as maintenance so far, feel free to visit my maintenance thread and see. It may give you some ideas and you decide what to do to your car.
It is your car. You paid over $32,000 for it. Feel free to do ANYTHING you want to do to it. If anything goes wrong, only you will suffer a loss. Hence, do whatever you feel is right for you to do to it so that it can always be in top shape and last you forever. Enjoy that car very well. You worked hard for it.
PetitFrereAccord's 2020 HAH maintenance thread...