UP_Refuel_Turtle

local a = turtle.getFuelLevel() + 10000

while turtle.getFuelLevel() < a do
        print( "I need "..( a - turtle.getFuelLevel() ).." more fuel" )
        print( "Checking for fuel..." )
        for i = 1, 16 do
          turtle.select( i )
          turtle.refuel()
        end
        print( "Checked for fuel...")
  end
  print( "I have got enough fuel...")