You can easily use this Liqui Moly LeichtLauf MoS2 Engine oil for 8K kms atleast and beyond too.
If you have used original Oil Filter, do go for changing over 8K kms (do keep an eye over oil level and should change the Air filter). Atleast get the value out of the product it is offering you for the worth spent 
I have personally used the same oil in my Cultus and LIANA for 9K+ kms.