The annoying, triplicate yellow low fuel notifications on my 2017 RTL-E always illuminate when then range gets down to 39 miles. Never 40. Never 38. Always 39. I can then quench one of the yellow lights, but not the other two. If I subsequentally add a few gallons, it is not enough fuel to cause the lights to extinguish. Does anyone know the minimum threshhold of fuel refill required in order to quench the lights? Apologies to the Canadian owners that utilize metric. Which leads to another few questions: Is gas there sold by the litre or gallon? How are Canadian gallons different than US gallons?