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Old 04-01-2015, 11:42 PM   #11 (permalink)
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Yeah my fuel gauge is far from linear also.

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Old 04-02-2015, 12:31 AM   #12 (permalink)
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Quote:
Originally Posted by Chrysler kid View Post
I'm at 275 sitting on the top side of half of a tank of gas. The needle tends to fall very quickly after half tank and I fill up at a quarter tank. I'm sure I would gain the most economy the less fuel I carry on board however I do not like the added stress and heat on the fuel pump. Im sure if I took out my two 12 inch subwoofers it would make a difference too lol.

I'm also running 10w30 synthetic, again I should switch to a lighter weight once summer hits full swing

Next tank I will try some marvel mystery oil. See if that snake oil does anything
The top half of the tank is around 7 gallons and the bottom half is somewhere around 4-4.5, that's why.
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Old 04-02-2015, 12:47 AM   #13 (permalink)
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Fuel gauges are discussed here: 8 Gadgets That Lie to You Every Day | Cracked.com

In the last fifteen years, I believe that is the second comment I have read about only partially filling the tank in order to save gas. One gallon of gas weighs 6.073 pounds (Gasoline - Wikipedia, the free encyclopedia), so if I only half-filled my 11.9-gallon tank, I would shed 36.134 pounds. My Civic weighs 2,519 pounds, so I would reduce the weight by 1.43%. The general rule of thumb is that for every 2% of weight you lose, you increase fuel economy 1%, so that would be ≈ 0.715%, and a 50 MPG tank would become 50.36.

Of course, we do plenty of modifications with smaller results.
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Old 04-02-2015, 01:05 AM   #14 (permalink)
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This is all true.

I prefer to just fill it all the way up. I really hate stopping for fuel!

Once I know I have this gauge dialed in, if I see regular 45 mpg or more I am going to be very happy.

I am going to keep my eyes peeled for either a HX or VX transaxle.

Maybe I'll end up with both lol. I have EX and DX now already.
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Old 04-02-2015, 04:53 PM   #15 (permalink)
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Quote:
Originally Posted by Xist View Post
Fuel gauges are discussed here: 8 Gadgets That Lie to You Every Day | Cracked.com

In the last fifteen years, I believe that is the second comment I have read about only partially filling the tank in order to save gas. One gallon of gas weighs 6.073 pounds (Gasoline - Wikipedia, the free encyclopedia), so if I only half-filled my 11.9-gallon tank, I would shed 36.134 pounds. My Civic weighs 2,519 pounds, so I would reduce the weight by 1.43%. The general rule of thumb is that for every 2% of weight you lose, you increase fuel economy 1%, so that would be ≈ 0.715%, and a 50 MPG tank would become 50.36.

Of course, we do plenty of modifications with smaller results.
I use to own a mustang that would have squeaky shocks if the tank was less than half full.

At this time in our economy convenience>consumption so gas always full tank for me
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Old 04-02-2015, 06:46 PM   #16 (permalink)
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I often have gas discounts, so I wait as long as I can to fill up. If I filled up twice as often, I would receive half the discount.

It is just a dollar here and there, but still.
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Old 04-03-2015, 11:02 PM   #17 (permalink)
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MuleVX who has the best MPG on here always fills up every 3-4 days so about 1/2 tank. I'm going to try that method for a while because I just got 2 50mpg tanks in a row, but on a 1/2 tank fill I got 53. I'm thinking the extra weight is going to benefit my coasting, which is where I'm grossing the most gains. Plus I think Mule is on to something.
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Old 04-03-2015, 11:42 PM   #18 (permalink)
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Some people have different priorities in life.

For me stopping for fuel is a very low priority and one I really try to stay away from.

To me it's just not worth saving ~50 lbs to possibly get a couple extra MPG's.

EDIT: It would be ~36 lbs in my Civic.
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Old 04-04-2015, 09:36 AM   #19 (permalink)
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Quote:
Originally Posted by snakester View Post
MuleVX who has the best MPG on here always fills up every 3-4 days so about 1/2 tank. I'm going to try that method for a while because I just got 2 50mpg tanks in a row, but on a 1/2 tank fill I got 53. I'm thinking the extra weight is going to benefit my coasting, which is where I'm grossing the most gains. Plus I think Mule is on to something.
If you really really want effecienCy you should map your route to expire at the gas station at the end of your commute lol
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Old 04-06-2015, 01:59 AM   #20 (permalink)
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One of my goals in life is to fill up as infrequently as possible.

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