FobagBob
Northern California
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Joined: 12/29/2009
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oldtrucker63 wrote:One thing that most people do not know, When you buy gas And the sign says it cost $3.35.9 That means your paying $3.35 For 9/10th of a gallon It's not $3.35.9 per gallon your only getting 9/10 of one gallon for that $3.35
You are right, most people don't know that, can you provide something to back up that claim?
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skimask
ND
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Joined: 04/06/2010
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Go to any gas station and look at the fuel pump.
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skimask
ND
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Francesca Knowles wrote:
No.
It's not.
Since words aren't getting the science across to some, here's a nice simple picture:
Hope that's not over any heads...
Except that engines burn fuel by MASS and not VOLUME.
That's why they use MASS Airflow Sensors, not VOLUME Airflow Sensors.
One POUND of fuel takes about 14.7 POUNDs of AIR to burn cleanly, NOT one GALLON of fuel takes 14.7 GALLONS of air. That doesn't work. Not even close. 14.7 GALLONS of air at standard conditions (59F, sea level, 85% RH) weighs roughly 1.2 pounds. A gallon of gas weighs about 6 1/2 pounds. That math just doesn't work no matter what temperature you're dealing with.
Yes, fuel expands when it gets warmer, but the energy contained in X amount of fuel does NOT go up by Y when temperature goes up by Z. If that were the case, you'd be able to heat fuel up (under pressure of course so it doesn't boil off) and get back an increasing amount of energy without adding more fuel. It just does NOT work.
That picture is one piece of anecdotal evidence. I can make pretty pictures too. My picture would say that my car gets 100 miles to the tank when it's cold and 1,000 miles when it's warm out...which might be true if it was winter and I spent all day warming up the car, which isn't far from the truth.  The one and ONLY thing that makes sense in that picture is that warmer air is less dense therefore less wind resistance, but even that wouldn't come into play unless driving at silly speeds, and if that vehicle was an aerodynamic nightmare.
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FobagBob
Northern California
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skimask wrote:Go to any gas station and look at the fuel pump.
Not trying to ba smart a**, but what am I looking for?
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just me
Salt Lake City Utah USA
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Joined: 10/30/2003
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Just watch the above ground tanks, they heat during the day. The operator should give you a discount on the price cause your not getting what you payed for through expansion of the liquid. Under ground is OK, constant temp.
But you have to remember that we all have return lines (most do) on our engines and this in turn heats up the fuel in the tank. So where are you know??????
Drag racers use a COOL CAN with ice in it to cool the fuel, more dense fuel to the cylinder.
95 Dodge CC #5 TST plate Flame Red/Silver
not totaly stock
2007 fiver
Tag Ma-haul has been suggested for a name but now The Shoe box
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Coach-man
Florida
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hotbyte wrote:I've always heard 2 sure fire methods to increase mileage...1) Put an egg under your gas pedal and don't break it while driving and 2) Always go downhill
And the third is always travel with a following wind!
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