How many gallons did it take when you filled the tank ?
5 gallons it was bone dry.
Do a trial full tank. Set the trip meter to zero. Ride 100 miles if possible. Mine averages 30 to 38 mpg. Fill the tank and figure your mpg average. You should still have over a gallon left in the tank. Then you can estimate closer when you will need reserve. Now you can test ride to see if your reserve works. I'm trying to keep you from being stranded
