So a friend of mine has a 2006 kia spectra. He is asking me to give him a reccomandation as he is a newb at this. He usually has oil changes done at the Dodge dealer where he bought the car. I belive the owners manual states 5w30 10w30 or 10w40. Car has well over 170K so I thought about using a High Mileage 10w40, what do you guys think? TIA!!