I'm very happy with my 2001 model(domestic version) GDI V75W Super Exceed, i have been used this jeep for last 6years and i pumped only 90octane.I did't get any trouble in this jeep smoothly ran. I did service in the due date at Unit#d Mot#rs that is all i did treat for this jeep. I don't have any experience with Brand new V6 version but i'm sure brand new version cannot compare with domestic version especially GDI engine sudden pickup & suspension comfortable.