Hi
On my 2.2 I-dtec Accord i used Mobil 1 0-30 ESP Oil in the Engine and Honda Transmission Fluid in the Gearbox. I now have a 2017 MK4 CR-V and will be using Castrol Edge Pro (which was apparently developed jointly with Honda for their Diesels) in the Engine and Honda Transmission Fluids everywhere else all from Coxes Honda Parts. I think it's all a case of personal choice as long as lts the correct grade and spec and it's a quality oil its down to Brand loyalty