So I replaced the rubber brake hoses on my rolling couch since one of them was looking a bit leaky. All the hoses were soft as spaghetti, and likely degrading inside. Turns out one of them was dragging just a little, as my instant MPG on the ScanGauge went up about 1 mpg on the highway. The tank after replacing them was better than the previous tanks by about 1 mpg or so, even with colder temperatures and snow tires. Can't complain when maintenance boosts FE!
