Good job Costco. Always doing great things. I had no idea this could happen. Thanks Clark.

My guess is fuel storage tanks aren't below the frost line, if such a thing even exists in Georgia or other southern states!

That being said, isn't it ironic that Hawai`i is the only state with this kind of law, yet it has some of the most consistent temperatures of any US State? lol @ that

Does anyone know what states ban pumps based on temperature?

I don't know how much it would help, but getting fuel in the morning when the temp is at it's lowest would be the best thing to do if you can't get to Costco.

There is no significant change in gasoline related to temperature. The change would be mesuarable only in volumes of several thousand gallons. Variance would be more significant in in diesel fuel. However, unless your buying in great quantities, you will not see any change in small volumes up to 50gals.

I live in a very poor rural area and we do not have a Costco but need it as much if not more than other areas. A large majority of our population must travel long distances to their workplace. Glad you are there for others and we will hope for the future!

If you are using this in your boat, be very careful about the high water content that WILL accumulate in the gas tank. Ethanol will bond easily with the water found in the air... be sure to use a product to remove this water (about $2 from any auto parts store). Also the ethanol based gas will start to break down in about 8 weeks. Try to use up what you buy within 2 months or less. Ethanol is such a rip!

Way to go Costco!! That's why we only get our gas there.......they take good care of their customers.

The amount you're being cheated out of by temp variations is minuscule compared to what you're losing because of bad pump calibration. Gas pumps off only 1 or 2% cost the consumer millions which goes into the pockets of the gas retailers as illicit and easy extra profit.

...compared to the rip-off that is Ethenol. Since Ethenol has only 2/3rds of the heat content of gasoline, it is the federally mandated mixing of Ethenol with gasoline that is really robbing us, both at the pump and through our tax dollars that subsidize it. And it actually contributes more to CO2 emissions as well.

If Costco really wanted to help us out, they'd find a way to sell us Ethenol-free gasoline.

If the temperature underground stays a constant 55 why are we being told the temperature of the gas can go higher? I'd like to understand the variation if there is one.

Check your tire pressure in winter, its probably too low.

I drive 150 miles round trip to and from work. I have noticed a few things you can do to increase your fuel mileage.I drive a Civic ,s o not sure how this might effect your SUV. Do your best to fill your car tank as early in the morning as you can. Using an air cleaner that you can clean does not improve your gas mileage that much to justify your cost unless it will pay off from not having to an air filter ever 6 months. Change your oil to manufacture recommended ,which is usually 5w30. Change your spark plugs regularly. tire pressure will not effect gas mileage but will make the car safe and extent your tire life.

Oh and JD Adams chill out Indycar uses 100% ethanol(alcohol) and the cars go 200+ MPH and will not void our warranties(sky is falling?). It is our future. Gas mileage is better in the winter because the gas is denser and so is the oxygen in the air.

Lots of great comments. The reason Oil companies have the largest profits of any other companies is simple and often misunderstood. Oil is the worlds largest commodity. For the confused folks out there, that means oil is the number one item sold. Coffee is the number two commodity sold in the world. So it only makes perfect sense that Oil companies that sell the number one commodity have the most profits. There is nothing wrong with that. Without profits means no jobs, and no stock dividends...Everyone needs profits!

The ground temperature is relatively constant but when gas is delivered to the station it is warmer in the summer than the gas in the ground. Most gas stations get gas delivered daily. Gas temperatures can vary depending on how long the gas has been in the ground and the temperature of the gas when it was delivered. Think about when you run the hot water and put it in a glass. Water right from the facet is hot but if it sits a while is at room temperature. It all depends on when the gas was delivered.

I would like to know which states ban the practice of pumps adjusting the price based on temperature?

The big oil companies and government regulators allow us to get screwed so big oil gets maximum profits in many ways, pumping temperature fluctuation being one of the lesser ways. Ethanol additives that rob you of gas milage, cost less than gas, and no savings are passed on to the consumer. Matter of fact when ethanol stocks are low the big oil people use it as an excuse to raise the price at the pump, just like the summer blend of gas that they are required to use in many states, Why? are catalytic converters and emmision control systems on cars not enough? they shut down refineries for weeks to change blends which is one of the biggest ways they raise the price at the pumps....they control the supply by cutting production when demand is low, so even if everyone carpooled and cut demand by 50% they would reduce refinery production to keep the prices the same..after $4 gas prices americans cut demand, so big oil cut the amount they refined..Low prices would be happening right now if refineries were cranking out 100%...but that would give them less profits when they change again for winter blend and raise prices at the threat of a colder winter or the possibilities of hurricanes disrupting supply, it's a lot easier to go from $2 to $4 than to have $1 gas all summer and try to go for $4 to keep them having THE BIGGEST PROFITS OF ANY COMPANIES EVER.

The temp of fuel stored underground stays relatively constant, so no one is getting ripped off for much. Some swear buying fuel at 3 a.m. is a better deal. I say the difference is a percent or two at best, not enough to bother with. I'm more concerned with Congress allowing oil companies to cut gasoline with even more ethanol, up to 15% is proposed. There goes millions of new-car warranties! Worse, fuel mileage will drop even more, as alcohol is less effiencent than gasoline. (Think adding a quart or two of water to your fuel tank with every fillup - it's like throwing a wet blanket on a fire.) I'm much more concerned with what Congress is doing to my wallet than the tempurature of the fuel I'm pumping.

What is left unsaid in this article is whether or not you get more gas for your money when it gets real cold. At zero do you get more for your money than at 60 degrees? I'll bet the answer is yes.

Left out of my previous post was the fact that lawyers always looking for a way to make a buck took this report and filed a class action lawsuit against the oil companies. Costco wimped out and settled.
This is not a victory for consumers but a victory for politicians and law firms made to look like a victory for consumers, yawn.
Support thr Fairtax and a very real part of the cost of gasoline such as imbedded teaxes when inacted would disappear. Gas goes down in price big time! Score!