I think 75 liters (19.8 ga). My FX35 is 80 liters (21.1+ ga) but my G37 is less. I just put in 19.4 in my G37 after going past the alert (which went from 17 to ----) and traveled +55 after the "---" displayed. Neddle went to the middle leg of the E. I don't think it has another 20-30 miles left...... And yes, it likely is a bad practice on the pump that limits the cooling provided by fuel.