hmm how come can use hyundai oil?

my 10K service cost RM230.50, petronas fully synthetic with free labor at kinrara sc.

actually i have my 10K service while my mileage only 7K because already 6 months.
should i use semi synthetic oil? oil is actually for service interval only, or better oil feed our engine better? 

Total charge RM 220 include
1) Engine oil Hyundai Oilbank 5-40 Full Sync
2) Oil Filter
3) Drain plug washer

not sure is there any item. Plus complementary car wash

Hi, just would like to check if anyone has done his 30k service?
My 30k service cost me 6xx including full synthetic oil n ATF oil.
So expensive the ATF oil, almost 300.

I was told that my 40k service will also cost the same amount by changing the air n air cond filter.

So Jia lat leh...sometime I feel that long warranty period seem not a good thing to us as we have to follow their blood sucking maintenance schedule for 5 years we can get the original oil or part much much cheaper at spare part shop.