 When it says full, it's right on F. It used to be past it like some cars do. I put it right on F, and then I ran it out when it was on empty so I knew how many gallons were left because I had to have it. My wife didn't. I find myself, now that we have a new gas station right next to my house that sells really good baked goods too, I fill my tank a lot more. I'll go in and get it. Is it a quick start? Yeah.