IanB
New member
Well sure your infinity runs bad on pump gas. It's 1 step down from a race car. Unlike the rolling lunchboxes we all drive. Anyway all I meant to say was thinking you need premium for a gx is wrongheaded. Especially if that is a reason that prevents you from buying one. I have two vvti engines with no appreciable increase in performance on 93.
I imagine you might notice more of a difference if doing something like towing in the mountains or something more demanding. It's flat here, I'd run regular in the GX if it was an '05+ too. I run premium in my E55 though, as I have a different driving style and expectations from it than an SUV.