Host : Is it okay to use the fast mode to fill my tank? David Rizzo: No, I wouldn't use the fast mode and of course by fast mode what we are referring to is when you put the nozzle in your tank receptacle squeeze it all the way and latch it on that high volume fast way of getting gas in the tank. You don't want that. You want on the lowest latch, the first one because then the gas goes in slower. As I mentioned gas is a -- it is a gas, it's volatile and the more turbulence you create, the more fumes escape. Then you are not getting your money's worth, you are not getting that liquid gas. So, by going slow you get a laminar flow on the gas in your tank. So, slow mode is the way to go. Just take your time, walk away from the tank. There is good reason for that. You don't want to sniff those fumes. Gas contains Benzine and it's been to linked to cancer like acute Myelogenous Leukemia. So, just put it on slow, walk away and then you can come back and unlatch it and put the pump back.