250+ miles; 400+ km
2017 F3L here, ridden spring to fall in Ontario, and winter in FL. Two-up at least 75% of the time; moderate ryding style - no burnouts, but not a slowpoke either. Always use premium fuel - 91 to 93 octane. Latest fill-up was 6 US gallons (23 L) with 239 miles (386 km) on the trip meter. That is pretty standard for our Spyder. I routinely go 250 miles (400 km) and still have enough left in the tank to probably go another 25 miles (40 km) if I had to, but haven't yet risked a totally dry tank, and don't really want to. I have ridden with all bars extinguished and found there was about 1/2 - 3/4 US gallon (2 - 3 L) left when I filled. I do put the pump nozzle only halfway in while filling to ensure I get a full tank, and I squeeze the handle a couple more times after the auto shut-off tries to cut flow. This way, I am getting pretty close to a maximum fill. Mileage performance will vary depending on weather. My best results have always occurred on warm, humid summer evenings, just after a rain; not as good in cooler, drier air.
Time/distance tolerance while in the saddle and in motion depends on seat quality and comfort - less than an hour on the stock BRP seat; almost double that using an AirHawk pad; about 2-1/2 to 3 hours straight when on my Ultimate seat. However, I do find it's better to stop for a short break every 75 - 90 minutes, and to find an interesting, out-of-the-way restaurant after a lovely 2-hour +/- ryde through the countryside. That's usually why we head out in the first place - back roads, beautiful scenery, a fun day. We don't usually concern ourselves with time spent, or worry about how much gas we burn. It's the Spyder ryde experience that really matters.