Mom: 2015 Subaru Forester (I doubt she got the turbo but unknown) Mother-in-law: 2013 Infiniti G37 (this is a 2013 made in 2014 before they started making the Q's). It's brand new and she basically stole it. Do the 2015's still have HG issues? Anything I need to know on Subaru's as we've never had one in the family. I think these can use 5w20 on the non-turbo versions. If this is the case I may go with M1 0w20. On the Infiniti, I plan on using PP 5w30 for 5k runs as those VQ's are tough on oil it appears.