But this caught my eye because on the rare occasion, I have to pump my own gas.
Exactly… Can you believe it? Oh it’s true. So here are some good little tips that I will more than likely forget….
Only buy or fill up your car or truck in the early morning when the ground temperature is still cold. (seriously? I have to set my alarm to go get gas? I think not) Remember that all service stations have their storage tanks buried below ground. The colder the ground the more dense the gasoline, when it gets warmer gasoline expands, so buying in the afternoon or in the evening….your gallon is not exactly a gallon. In the petroleum business, the specific gravity and the temperature of the gasoline, diesel and jet fuel, ethanol and other petroleum products plays an important role. (I hate what gravity is doing to me…)
A 1-degree rise in temperature is a big deal for this business. But the service stations do not have temperature compensation at the pumps. (so I’m screwed?)
When you’re filling up do not squeeze the trigger of the nozzle to a fast mode If you look you will see that the trigger has three (3) stages: low, middle, and high. You should be pumping on low mode, thereby minimizing the vapors that are created while you are pumping. All hoses at the pump have a vapor return. If you are pumping on the fast rate, some of the liquid that goes to your tank becomes vapor. Those vapors are being sucked up and back into the underground storage tank so you’re getting less worth for your money. (but I want to hurry….there are sales out there!)
One of the most important tips is to fill up when your gas tank is HALF FULL. The reason for this is the more gas you have in your tank the less air occupying its empty space. Gasoline evaporates faster than you can imagine. Gasoline storage tanks have an internal floating roof. This roof serves as zero clearance between the gas and the atmosphere, so it minimizes the evaporation. Unlike service stations, here where I work, every truck that we load is temperature compensated so that every gallon is actually the exact amount.
Well, maybe I should just let James fill up my tank since I would do it : a)in the afternoon 2)quickly 3)when it is below empty…
I HOPE WE HAVE LEARNED A LESSON HERE….