Newer gas cars have GOM too, but they also tell you the current mpg average to help you figure out why it's guessing so low/high. Our Subaru Forester gets around 20mpg around town, which is mostly what the wife drives, but going on a trip gets over 30mpg, so on a full tank it's GOM usually says about 200 miles, but then we drive 3 hours straight on the highway and it starts creeping up to near 300 miles before it starts going back down.
I think part of the issue is the GOM range is displayed prominently over the 'fuel' gauge, not in another part of the infotainment, as opposed to just having a percent left like regular fuel gauges. Also regular fuel guages also would lie, taking a a while to drop from full to 3/4, then drop like a stone from 1/2 to 1/4 to E, now that's a GOM!
I think part of the issue is the GOM range is displayed prominently over the 'fuel' gauge, not in another part of the infotainment, as opposed to just having a percent left like regular fuel gauges. Also regular fuel guages also would lie, taking a a while to drop from full to 3/4, then drop like a stone from 1/2 to 1/4 to E, now that's a GOM!
