Is it less expensive to fill up my gas tank during cooler hours so the true value of a gallon hasn't exanded?
354698
This is a fair point, and I actually did this problem in a class at some point.  The bottom line is that any cost difference is going to be very small, but there can indeed be some difference.  And as the previous poster pointed out, the gas is stored in a well-insulated, underground environment, which makes any differences even more negligible.\n\nThe difference can be more pronouced if a tanker truck fills up in a 90 deg F area, drives all day and delivers to a 40 deg area.  Here, there is enough of a volume change to be noticeable.
883842
the pressure will be higher but the density won't change, it can't possibly change if it's a sealed, rigid container, density is mass/volume and you aren't changing the mass or the volume, therefore the density will be unchanged
632027
It's psychological.  Most prices end in $.99.  You see a sweater you like and it's on sale for $24.99.  You think $24 is an ok price.  The sweater actually costs $25.  It's the same with gas.  The 9/10 at the end makes you think the gas is $2.94 a gallon when it really costs $2.95.  Vendors will use any trick they can to get people to buy.
993436
This seems to be the general consensus:\nBecause gas companies are trying to make money. By throwing that extra 9/10ths of a cent on the price it sounds 1 cent cheaper yet it is close to being 1 cent more. Say for instance that gas is $1.00 9/10ths per gallon (which is truly 1.009 per gallon) This is very cheap for gas but it will prove my point. Now if you bought 1 gallon, it would cost you $1. Now if you by 2 gallons you would expect it to cost $2. But it cost $2.02 because the 1.009 and the other 1.009 added give you 2.018 which in money rounds to 2.02 So by doing this the gas company is making two cents. This may sound like a small amount but most people buy more than 2 gallons and the .009s added up to make more cents. So if you bought 20 gallons of \ngas at $1 per gallon it would end up costing $20.21 roughly. For the millions of people buying gas this extra money turns into thousands of dollars. You may ask why not just make it $1.01 per gallon instead of $1.00 but this would make it sound like more money than!it is. It is just like stores charging 9.99 instead of 10.00. Nine \nsounds a lot better than ten and the same applies to gas companies. Its just the \ngas companies sneaky way of making more money.\n\n\nNOTE: despite my source, I don't think this was a stupid question.
1132829
The answer is yes, for some people, depending on the electirc company or coop they purchase from. Often companies that acquire their power from hydro electric sources offer a discounted rate (expecially in rural areas) for use of electricity during off peak hours.\n\nHydro electric power is much less flexible than other sources (such as opposed to coal or oil fired) when it comes to output.  You can't simply shut the dam off.  This means a consistant production of electricity every hour of the day...  Unfortunately this results in the need to produce more power during peak times, and an excess of power during off hours.  More power is supplied by burning fossil fuels to produce energy, however any excess power that is produced is lost, as we have no efficient way to store electricity, expecially in large amounts.  So by offering discounted rates for usage in non peak times, Electric companies spend less on fossil fuels during peak hours, and make money on electricity that would normally go to waste during off hours...\n\nFor an example of a company that offers such services check out Utah Power.... here is the link to "Tim of Day" rate plan for their service area in Idaho... http://www.utahpower.net/Article/Article51343.html
558105
Price to ship is maybe? (Gas prices)
470574
I JUST PAID OFF MY HONDA INSIGHT.  IT HAS A 10 GALLON GAS TANK.  BUT IF BUSH'S GAS PRICES GOTO $6 A GALLON IT'S STILL GOING TO HURT TO PAY $60 EVERY TIME I TURN AROUND.
280541
It should say right on the label on the tank that you must not store the tanks indoors. If one of the valves failed or was opened up by a small child, it could spark and make a huge explosion. . . not to mention it would poison your house with the gas.\nThat is why you always see those "exchange a tank" places keeping their tanks outside. (Like at Home Depot)
1094896
Yes, there's an effect, but no it won't affect today's price.  It takes a while for the cheaper oil to make its easy through the refineries and actually get to the gas station, so there's a bit of lag time.\n\nThere's a decent article here about prices: http://www.npr.org/templates/story/story.php?storyId=5365439
437848
Find Some Way to Contact the Right Person[s] not Obsessed with Greed and Money that could Help Me get the Word Out that We are ALL being Ripped Off. How ? I've Found a Way to Convert Regular Pump Gasoline into Propane. My Unit is very Compact, Safe, and Mixes in Low Pressure Air, Within Most any Vehicle. This Produces 100 Parts of Air to 1 Part of Fuel. You Want Numbers ? 50 + MPG with even the largest Gasoline Powered SUV ! Here's the Problem, all Vehicles in the U.S.A. are Required by Law to Conform to the EPA-OBD II Law. That Law Explicitly States that all Vehicles Made from 1996 to the Present must Run at 14.7 Parts of Air to 1 Part of Fuel. Even if Fuel Economy is Improved, and Emissions are Lowered, any Alteration of any OBD-II Vehicle will Result in a Failed Inspection. Then, it's Illegal to Operate! When that "Big-Brother" Machine gets Hooked Up to any '96 on Up Vehicle, it must be Factory Original.This is Insane! I can Understand a Maximum Limit on Emissions for the Good of the Environment, but to Fail Inspection for not Emitting enough Pollution ? I've been to the US Patent Office, and Looked at other Units that have been Bought  Out, and Kept off the Market, so, for This, don't even go There! If I'm Wrong, then how is it that Engines do Run on Propane? By Conventional, Legal Means this involves using a Large, Expensive, Cumbersome Tank that has to be Hauled in the Vehicle, Expensive Metering Equipment, and the Hassle of Refilling the Tank. So Much Hassle that even with Gas going back up to $3.OO Per Gallon, it's just not Worth it. Hybirds? Great, in Town, but on the Highway, the Gas Engine takes over, plus Heavy, Expensive Batteries have to be Hauled. What I would Like to do Today is to get the Word out that all Petroleum is essentially the same. Only the Molecular Dispersal is Altered.It all comes from the same Place.If Gasoline to Propane Conversion were Legal, it would go a long way toward ending Dependency on Imported Oil, and Reducing Air Pollution, and Global Warming.Cheap, and Safe Hydrogen is the Ultimate Answer. Until the Big Profit is taken out of Big Oil, nothing will ever Change. Also http://energy21.freeservers.com/bookrep.html gives even more Insight. If I at least got the "Word" out to You, then I did what I wanted to do Today ! Thanks!
398907
If you're doing this to save on fuel economy, you're kind of missing the point.  Your engine needs the same stoichiometric amount of fuel to run, no matter the dilution level.  In other words, your engine will burn the same number of gasoline molecules, whether or not there is water present.
635142
I began driving in 1972.   The price of gas was .25 per gallon. I remember shortly after when it went up to .29 per gallon and people were complaining because it was so much easier to FIGURE the cost at .25.  Crazy, isn't it?
328579
My old prediction was that their will be little change in consumption until fuel reaches $7/gallon. After watching the news last week, I'm beginning to think it may be closer to $5/gallon.\n\n$12/gallon would be too high, as the transportation charges would cause a serious blow to the cost of consumer goods and trigger inflation big time.
589485
There has simply been a ban on building new refineries for 25 years, and the capacity to refine crude oil has not kept up with demand for gasoline. The supply of crude oil, and crude oil inventories are ample. But the ability for the refineries to produce gasoline from the crude oil is at a maximum, and this time of year some of them shut down for maintenance (30-60 days), so gasoline supplies are even tighter.\n\nIn a free market, no matter the commodity, when Demand is greater than the Supply, the price goes up.
926290
I had a really bad experence with letting my fuel tank run to empty.... Lets just say Me on the side of the road lost in the backwoods of West Virginia at night was NOT FUN... I always try to keep my tank above half full now. I learned my lesson!
846835
There are no limitations for independent mechanics, but they will usually let you know what the time and parts will cost up front and should let you know if that price changes along the way. If you go to a dealership, they usually work off of "book-time." That means that every process has a time value assigned to it. Like if replacing a water pump has a time value of 1 hour and the labor rate is $60/hr, you pay parts cost plus $60. The mechanic increases his rate by how fast he performs the work. So if he changes it out in 30 minutes, its the same as the mechanic making 120/hr because essentially he could do 2 hours of book time in one hour of the day. In this scenario, the fee never changes for you. If I knew a little more about your situation I might could give a little more targeted answer. Good Luck!
521724
call someone, and ask them to buy oil from you. ... once you have the order, call around and try to buy it from someone else. Soon you will realize that demand alone doesn't make a market easy to participate in. The markup is slight...but the volume and the regulations are amazing. Where will you store your gas/oil if you have a one or two day lag between when it gets delivered to you and you deliver it to someone else? Gas and oil cannot just be held in a big box...\nHow will you judge the quality of the product you are getting? Will your costs when buying really be better than a company who buys a million gallons a day from a wholesaler? And, will your buyers pay as much when you are new and delivering smaller amounts??? Some stuff to consider...