get the synthetic oil from honda dealership their oil and air filter is good for 10000kms.
oil is good for 5000kms. After 5000kms they change the oil but not the filter.
i use it for 2500kms or 3000kms max and filter is changed after one oil change so the filter runs for 6000kms.
they also have a new grade oil that you may use.
their normal synthetic oil is SM grade - price 2400
their new oil is SN grade and thinner - price 3000
they also have an organic oil which is cheaper than the SM grade worth 2400