Please correct, PAO oils are true fully synthetic and that means somewhere between 15000 to 25000kms drain interval.
In all honesty i would recommend you to stay with Total Quartz 9000 5W-30 SN GF5 fully synthetic ( Group 2 with synth type additives) and let it replenish every 5000kms like you are already doing.
During combustion process the combustion byproducts contaminate / degrade the oils which in turn made them replace.... unfortunately our fuel having high levels of mmt degrades the lube oils faster so in current circumstances i feel it not worthy to go for expensive / PAO oils along with longer drain intervals....
Honda Atlas when launched Turbo civic gave drain interval of 10000kms thats why the oil life displayed on meter is 10000kms but shortly released internal service bulletin to all 3S dealerships for replacing lube oil at 5000kms and that is due to bad mmt based fuel which degrades the oils faster as compare to rest of the world.
The best combo is 0w-30 which i feel is best of both worlds and falls within manufacturer recommendation although i am stick to 0w-20 coz having 100000kms / 4 years warranty.
Atlas formulated Honda oil from Total 0W-20 & 5w-30. What we are getting from after market is even more superior oil i.e. directly imported from Singapore.