Jesusisgod
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expand...Don't read this in an angry argumentative way. I'm simply retelling what I've already said earlier. As well as presenting my exact tests.As HSKR mentioned, your method is not going to be accurate. The gauge/computer is not that precise when it comes to fuel levels. So when you say you drove it down to 1/4 tank, how will you know exactly how much fuel is really left? There is a guy online that tested his F-150 to see how far he could drive once his truck said he had zero miles left until empty. He was able to drive 49 additional miles before the truck died. That’s a lot of extra fuel. The tank should say what size it is. If you don’t trust that, then drive the truck until it dies, then fill it up and see how much goes in. If you are using Jerry Cans, don’t fill them all the way. Fill to exactly 5 gallons based on what the fuel pump tells you is actually 5 gallons, not the fill line on the can.
I posted earlier that I logged all the fuel that went into the cans at the fuel station. I didn't get the Jerry cans filled with magic. Though that would be nice.
I filled each to exactly 5.28 gallons. Because 20 liters is 5.28 gallons. which the cans are designed to hold. It says 20 liters on the side. See photo in earlier post, it doesn't have a fill line. These are military style fuel cans. Not plastic cans where you can see the fuel reach a certain level inside.
Accurate data can be collected with numbers that are followed by a decimal then more numbers. The same way accurate data can be gathered with fractions. They do not have to be exact whole numbers like 5, to reach a conclusion.
This being simple addition, and multiplication. As well as labeled measureing tools. I think it's plenty accurate enough.
Each can got 5.28 gallons. First tests filling at a qtr tank. I used 5 cans which is exactly 28.40 gallons. No more no less. I also stated that I ran it to where it was riding on empty. I stated I did 2 tests. 1 to a qtr of a tank. Didn't want to make assumptions, so I ran it to empty then filled. The empty test I had 6 Jerry cans. Which was exactly 31.68 gallons. The truck took all but 2.89 gallons of the 31.68. Which means it took 28.79 gallons.
The Jerry cans have multiple fill nozzles. The ones used in the test are designed to stop flowing once the fuel reaches a certain point in the fill tube. Thus I was able to take the sixth can pour it into a measuring bucket. Where I got 2.89 gallons.
Now this isn't accurate to the milliliters. I'll admit that.
I also ran a 3rd test running it to empty using my home fuel pump. Yes it's like a little gas station. It even has digital reading for gallons pumped. Still got 28 gallons pumped. The exact number that time was 28.59.
Now even if like you stated I had fuel left on empty, in the 23 gallon tank it says I have. That means it held even more then 28 gallons. I'm not gonna run the fuel pump dry for a test. When I've already saw it holds more then 23 gallons. 5 to 6 gallons more in fact. That's a decent jump. If fuel was leaking in the ground. 5 or 6 gallons would be noticeable very fast.
Now all these numbers add up to be close enough with differences of less then. 0.20 gallons. Not enough difference to make a difference if I was to quote pual Harrell.
That also tells me even though the truck says empty with 0 miles in range. It still has a little bit of fuel left. Which I already considered because it's not unheard of. That these manufacturers tune the fuel to say empty while you still have a few gallons.
Also here is a pic of my fuel tank. I'm only attaching the one. I looked around the entire tank. With exception to the top tight spaces. I did not see a number next to dt. I included one with a part number as well. I didn't get anything back on it except for a wiring harness.



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