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Old 02-22-2012, 04:49 PM
 
Location: Los Angeles
8,555 posts, read 10,978,234 times
Reputation: 10808

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Snofarmer,
This is just plain common sense.
If you wait until the tank is empty to refill, it will cost you more money at the pump than if you filled it when the tank reads 1/2 full.
What part of that don't you understand?
Bob.
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Old 02-22-2012, 05:03 PM
 
Location: Perry, UT
600 posts, read 1,933,529 times
Reputation: 376
Quote:
Originally Posted by CALGUY View Post
Snofarmer,
This is just plain common sense.
If you wait until the tank is empty to refill, it will cost you more money at the pump than if you filled it when the tank reads 1/2 full.
What part of that don't you understand?
Bob.

Bob,
but you have to go to the pump more often, don't you?

Less weight is another good one. I should ditch the heavy spare tire of my Expedition
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Old 02-22-2012, 05:10 PM
 
Location: SF Bay Area
13,520 posts, read 22,131,339 times
Reputation: 20235
Quote:
Originally Posted by CALGUY View Post
Snofarmer,
This is just plain common sense.
If you wait until the tank is empty to refill, it will cost you more money at the pump than if you filled it when the tank reads 1/2 full.
What part of that don't you understand?
Bob.
Bob, does the volume knob on your stereo go to 11?
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Old 02-22-2012, 06:26 PM
 
Location: Los Angeles
8,555 posts, read 10,978,234 times
Reputation: 10808
Quote:
Originally Posted by jaypee View Post
Bob, does the volume knob on your stereo go to 11?


Am I missing something here?
Bob.
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Old 02-22-2012, 06:45 PM
 
Location: The Circle City. Sometimes NE of Bagdad.
24,471 posts, read 26,003,936 times
Reputation: 59848
Quote:
Originally Posted by CALGUY View Post
Am I missing something here?
Bob.
Yes it has, it;s called Whoosh.

And it's been discussed here before.

When to buy gas.......
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Old 02-22-2012, 07:46 PM
 
Location: Northern MN
3,869 posts, read 15,171,657 times
Reputation: 3614
Quote:
Originally Posted by CALGUY View Post
Snofarmer,
This is just plain common sense.
If you wait until the tank is empty to refill, it will cost you more money at the pump than if you filled it when the tank reads 1/2 full.
What part of that don't you understand?
Bob.
All of it.

So, If I had 1/2 a tank of 0.56cents a gal gas from when I was a kid I would have saved millions?
You know because it never went below 1/2 a tank.
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Old 02-22-2012, 08:21 PM
 
Location: Los Angeles
8,555 posts, read 10,978,234 times
Reputation: 10808
Quote:
Originally Posted by snofarmer View Post
All of it.

So, If I had 1/2 a tank of 0.56cents a gal gas from when I was a kid I would have saved millions?
You know because it never went below 1/2 a tank.
Ok, so let's put this in terms even you can understand.
Last Saturday you filled your tank, and it cost you $40.00.
Now today is Wednesday, and your gauge reads 1/2 tank.
Now, you have the option to pull into a station and fill it up for $20.00, or you can wait till the tank is empty, and pay another $40.00
By re-filling at 1/2 tank, you saved $20.00.
If you never let the tank get below 1/2 tank, you are ahead $20.00 every time you fill up, and with the price of gas escalating practically by the minute, filling up at 1/2 tank saves you money.
Bob.
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Old 02-22-2012, 08:33 PM
 
Location: Northern MN
3,869 posts, read 15,171,657 times
Reputation: 3614
You don't save any money, you still spent $40.
You just stop twice as often as I do and make installments of $20.
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Old 02-22-2012, 09:07 PM
 
Location: Scottsdale, AZ
4,472 posts, read 17,699,609 times
Reputation: 4095
Quote:
Originally Posted by CALGUY View Post
Ok, so let's put this in terms even you can understand.
Last Saturday you filled your tank, and it cost you $40.00.
Now today is Wednesday, and your gauge reads 1/2 tank.
Now, you have the option to pull into a station and fill it up for $20.00, or you can wait till the tank is empty, and pay another $40.00
By re-filling at 1/2 tank, you saved $20.00.
If you never let the tank get below 1/2 tank, you are ahead $20.00 every time you fill up, and with the price of gas escalating practically by the minute, filling up at 1/2 tank saves you money.
Bob.
Sat- $40
Wed- $20
Sun- $20
____________
$80

Sat- $40
Sun- $40
________
$80

This has to be about the most back-asswards math I've ever heard...and I'm an engineer!!

All you're doing is stopping an extra day to fill up versus waiting until it's closer to empty. You aren't saving ANYTHING.

By your math, I should buy groceries three times a week at $20/ each day instead of buying groceries once a week for $60. It's the same amount.
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Old 02-22-2012, 09:19 PM
 
11,555 posts, read 53,182,360 times
Reputation: 16349
Quote:
Originally Posted by CALGUY View Post
Yes I disagree.
I am old school, before 02 sensors, and EFI.
Yes, and those days include "venting" gas caps rather than closed evaporative canister purge systems for the fuel tank.

Which means that under normal operating conditions, the "air pressure" in the fuel tank was the same as the barometric pressure. There was no forcing of fuel into a fuel pump ... where the output pressure was limited to a range acceptable to the float needle/seat design for the carburetor in the car. A high barometric pressure didn't give a corresponding higher fuel level in the float bowl.
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