I hate to brag, but I will. I've been driving our 17 Volt for nearly 8 months and had to finally fill'er up with fuel. I managed to go 18767km on the first tank and I was still showing 1 bar of fuel left on the gauge. It took 27L to fill the tank. I have had zero issues with the car. Its been they best car we've ever owned. Not bad for a cold Canadian Volt owner.