[barenekd]

I put 3.48 gallons (US) in mine the other day.

That's where that plus/minus 1 liter comes in. Mine holds 3.40, usable.
Bare

[mbevo1]

When it worked... my light would start to flicker on braking at 150 miles. Only ran it down far enough to have it stay on all the time about twice - at about 180 miles.  Since the light has been on for about the last 3,000 miles... I use the same method as on my Classic. I write the mileage when I fill up on the steering head with china marker. At 180 or so I fill it up. I get 60-63 mpg, so 3 gallons is good!

Mike and Sherman and Stumpy in Michigan

[Ducati Scotty]

On a long trip mine started to flicker just after I passed a gas station.  I looked at the map and there was another not too far ahead.  When I got there it was a ghost town, station had been closed for some time.  I could either head back to the last station or just a little farther away in the direction I was heading to the next big town.  I pressed on and ran out of gas on an uphill a few miles from my goal.  I had to wait about an hour for AAA to bring me some gas.

No drama really but now I just fill up when it starts to flicker.  That may be earlier than I need to but getting stuck sucks and wastes my time.

Scott

[Bulletman]

That's where that plus/minus 1 liter comes in. Mine holds 3.40, usable.
Bare

Thanks Bare,
I think that at this point I know the worst case fill up time would be at approx 3.2 to 3.4 gallons. I also like that the other alternative to this is filling up when you've done 140 to 160 miles as it seems the fuel is used as a coolant for the fuel pump.
Cheers

[Arizoni]

When I'm riding in town I aim at 150 miles between fillups.
If I'm on the road, about any town that has a filling station after I've passed 100 miles gets some business.

That's about 1 1/2 hours of riding and my butt needs a break by then too so it kills two birds with one stone.

[Ducati Scotty]

No wonder your butt hurts!  You're riding around with all those birds and stones in your back pocket! 

[indyogb]

I also fill my B5 up when the light starts to flicker during braking/deceleration.  It's usually between 150-200 miles and takes 2-2.5 gallons or so.  Most I've ever put in at a fill up was 3 gallons, and the light had been on steady for a good 10-15 miles which was enough to make me nervous.