what type oil is best to use

5W30 should be good year around. Is it using any oil? If necessary , switch to oil that was developed for high mileage cars. Check / replace the PCV valve also. Zee

Apart from Repaipal two other great free resources as a Hyundia owner below: Check here http://repairpal.com/automobile-owners-manuals-online or try this link you may be able to down load a free copy of the owner's manual for your vehicle http://www.autousermanual.com/ Hyundai as a car manufacturer put a lot of free technical information and workshop manuals on line for Hyundai owners. Check out www.hmaservice.com lots of great information.