Everyone’s not is better than mine.

[Osteologation]

I just joined here but have referenced this site for years. My averages are always lower. My current vehicles best long distance highway trip is worse than some people daily average. I don’t drive aggressive or anything. If I try really hard( no ac, shutting engine offf etc) I can get my average on a tank up but it’s still lower than most people. Even my current the dash indicated long term when I bought it was about 50% better than I get now and still better than my best tank ever. Even at 55 downhill with a tailwind I don’t average these numbers lol. I’ve used a live data tool and my o2s seem to be working good so idk.

[LDB]

What year, make, model, trim level, transmission, tires, modifications? All those can affect overall. More info may help with ideas and suggestions.