According to the 2020 Honda Accord Owner's Manual, you should be using Genuine Honda Motor Oil – specifically premium-grade 0W-20 detergent oil with an API Certification Seal on the container.2020-01-09
The problem: Under certain operating conditions, the engine in certain Accords may develop deposits on the piston's oil control rings, which may lead to excessive oil consumption. ... Corrective action: Dealers will replace all pistons and piston rings as necessary.2016-01-04