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El Jefe
Super Nomad
  
Posts: 1027
Registered: 10-27-2003
Location: South East Cape
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Short liters at Pemex
There have been several post on this subject, but I just had to pass on what happened yesterday in San Jose del Cabo at the Pemex on the four lane
near Palmilla.
So I have the attendant fill my can to the 20 liter mark and look at the pump to see what it says before filling the car. Pump reads 23.2 liters. I
point it out to the attendant with a smile and he looks at me straight faced and says, ''when it is hot like this the gas expands."
Oh, that explains it!
No b-tchin\' in the Baja.
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villafontana
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Posts: 261
Registered: 5-28-2013
Location: Tijuana, Baja California
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Mood: Urgency to travel all the time in Baja!
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Boyle's law!!! 
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chuckie
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Registered: 2-20-2012
Location: Kansas Prairies
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I knew that...
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weebray
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Actually he is correct.
Every beautiful beach in the world needs a few condo towers - NOT.
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Cliffy
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As the gas expands with heat maybe 19 liters will fill to the 20 liter point!
It's all measured by Specific Gravity with a temperature factor figured in to get the true gallons at a standard temperature. When we get fuel for the
tanks at the airport we measure with a dip stick. The dip stick (just like the 20 liter jug) is measured in gallons at a given temp. The gallons go up
as the fuel heats.
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bajalearner
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Quote: | Originally posted by villafontana
Boyle's law!!!  |
No, it is ladrone's law.
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villafontana
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Location: Tijuana, Baja California
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Mood: Urgency to travel all the time in Baja!
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Quote: | Originally posted by bajalearner
Quote: | Originally posted by villafontana
Boyle's law!!!  |
No, it is ladrone's law. |
Yep!
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dtbushpilot
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Posts: 3294
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Location: Buena Vista BCS
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I have 6 identical gas cans that I use for my boat, I use 5 for diesel and 1 for water. They are white, the kind you see motorcycle racers use with
the large threaded cap with a hose on it. They have graduated marks on the side for liters and gallons and being white you can clearly see the fluid
level. The water can is pretty much new, hardly ever used while the diesel cans are well used.
I always stop the pump at 20 liters for each can and it is always a couple of liters shy of the 20lt mark, when I have pointed it out to the attendant
they just shrug. Recently I started using the new can for fuel and to my surprise 20 liters of fuel on the pump showed 20 liters on the new can. Upon
examination I could see that with age and use the other cans had expanded a bit.
I know there are pumps that aren't accurate but try not to put too much faith in the graduated markings on your gas can, they can be off a bit too. I
use the new Pemex on the North end of Los Barriles.
"Life is tough".....It's even tougher if you're stupid.....
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bajalearner
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Interesting explanations.
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Cliffy
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Posts: 993
Registered: 12-19-2013
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As I mentioned before, I measured all my gas purchases on my last trip down to Loreto. They all showed within what I felt was an acceptable amount of
"error" on my can marks. Maybe a 1/4 inch or less on a 5 gallon (19 liter) mark. Could they have all been 1 liter short, maybe, but I doubt it. All
the pumps I saw were new electronic ones.
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El Jefe
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Posts: 1027
Registered: 10-27-2003
Location: South East Cape
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Quote: | Originally posted by Cliffy
As the gas expands with heat maybe 19 liters will fill to the 20 liter point!
It's all measured by Specific Gravity with a temperature factor figured in to get the true gallons at a standard temperature. When we get fuel for the
tanks at the airport we measure with a dip stick. The dip stick (just like the 20 liter jug) is measured in gallons at a given temp. The gallons go up
as the fuel heats. |
Yes, looking at my now cool can of gas there are now 19 liters where yesterday at the station it was close to 20. But that is even worse since I paid
for 23.2! Can't imagine my can is that far off accurate, but hey my love handles have expanded over the years, why not my gas can?
No b-tchin\' in the Baja.
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JC43
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Quote: | Originally posted by El Jefe
Quote: | Originally posted by Cliffy
As the gas expands with heat maybe 19 liters will fill to the 20 liter point!
It's all measured by Specific Gravity with a temperature factor figured in to get the true gallons at a standard temperature. When we get fuel for the
tanks at the airport we measure with a dip stick. The dip stick (just like the 20 liter jug) is measured in gallons at a given temp. The gallons go up
as the fuel heats. |
Yes, looking at my now cool can of gas there are now 19 liters where yesterday at the station it was close to 20. But that is even worse since I paid
for 23.2! Can't imagine my can is that far off accurate, but hey my love handles have expanded over the years, why not my gas can?
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Jefe, u r asking the wrong question. The correct question is: How is it possible that my can is getting so empty?
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DENNIS
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Posts: 29510
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Location: Punta Banda
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Reminds of a time in Tecate. Stopped at a liquor store and grabbed a sixpak of TKT Rojo. Went to the register and the man gave me the price.
When I asked him why it cost more two blocks from where it was made, than in Ensenada, he just looked at me and said, "It's fresher."
Somewhere in Mexico is a book of replies for every occasion.
"YOU CAN'T LITTER ALUMINUM"
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chuckie
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I suggest keeping your cans on ice, that way they will be smaller and you will get more fuel.
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Bajaboy
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Who really cares? I know I don't. It is what it is....
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DENNIS
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Quote: | Originally posted by Bajaboy
Who really cares? I know I don't. It is what it is.... |
Would you feel that way if it happened at a taco stand or the grocery store? Or is it just expected at gas stations.
"YOU CAN'T LITTER ALUMINUM"
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chuckie
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Dennis!!!! I got us a money maker! Cans with sliding liter marks! Just adjust the marks on the can to match what you paid for! No mas problema..Be
happy!
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DENNIS
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Posts: 29510
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Location: Punta Banda
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Sounds good, Chuckie. We could sell them to gas stations.
"YOU CAN'T LITTER ALUMINUM"
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El Jefe
Super Nomad
  
Posts: 1027
Registered: 10-27-2003
Location: South East Cape
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Perfect! Feeling better all ready.
No b-tchin\' in the Baja.
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Bob and Susan
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Posts: 8813
Registered: 8-20-2003
Location: Mulege BCS on the BAY
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maybe first you should fill the container with a "real" 20 ltrs
then mark that amount on the container
then complain
otherwise no one really knows what you got
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