I get usually my E0 at an Exxon station with a dedicated pump. I still wonder if I am getting all gas though. My log splitter and chainsaw run like it is.I learned this from a guy that services gas pumps and also does the volume testing on them. What I do now when gassing up my truck is pump about a half a tank and then fill my gas cans and then back into the truck and top that off. Never had an issue doing it that way.