My next door neighbor was changing his oil today and using PHM (Pennzoil High Milage) 5w20. His car is a 2013 KIA Optima 2.4 GDi with 22000 miles. I asked, why the HM oil? His response was interesting... The SN certification is current and above the required SM On Pennzoil's website, it is one step above PYB It uses conditioners, not swellers, and more cleaning additives than PYB and it covers your car, as do all Pnnzl oils, for 300K miles Like I said, interesting. How many of you use HM oil in your newer car?