That's what i just done with a gas tank and 2 recharges. Mostly on highways. (90%) Don't know yet if it's good or average, car is still new to me. Compared to my Civic Si it's excellent.. haha P.S. Yeah i know i should not fill up to the filler neck for my charcoal canister's sake..
38.215litter is only 10.095335gal. You still had at least 4 litters of gas left in your tank (11.3gal capacity). You could have gone another 138km at your pace.
The other day, I was pressed for time and far from my destination. I intended to stop at a gas station with a bit of DTE to spare (showing 19km) but it was overflowing with waiting cars (all 8 pumps in use). Next station that was conveniently near an exit was 75km away. Spent a while with no yellow bar and DTE of - - - -, while driving 125km/h (122 in reality if my observations about the accuracy are correct). Still had 7 litres in the tank (good for at least 180 more km). This is, by far, the most conservative DTE indicator I’ve ever seen.