15 gallons of diesel in less than 1.5 minutes. I was kinda shocked at how quickly it primed and how fast it pumped actually. Easy enough to use, although I’m going to try something different other than the jumper cable route. My only beef, and it’s a small one. Unfortunately the pickup/strainer was too big to fit into my 15 gallon storage tank. No biggie, I’ll just pick one up that’s a slightly smaller diameter. I’ll try to find one that is more weighted as well.