Gas It Gauge Accurate?

Rocking Rivet

Rocking Rivet

Joined
Sep 9, 2013
Posts
191
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768
Location
Leicester
Funster No
28,006
MH
Autosleeper Nuevo EK
Exp
Since 2012
The "Gas It" gauge in the van says we have 4 bars left in the gas tank Can anyone tell me how accurate they are? Are they like fuel tank gauges ,as in, when the get below half full they seem to fall off a cliff!
Note: There are 10 bars in total on the gauge.

I have a 25lt gas tank in my Autosleeper Nuevo (which we love and is just the right size for us). Before, in our bigger older vans, we always had gas bottles, so I have no idea when I should consider re-filling the gas tank.

I am hoping it will last 5 days so I can fill up before going to France, or should I wait until in France, to save money?

Which reminds me, is there an APP for LPG suppliers in France?

Note: I have a set of gas tank adaptors.
 
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Yours will probably have the same size tank as ours and when full contains 20 litres, coincidentally our gauge is showing four bars and from experience that’s approximately half full, if I fill up tomorrow it’ll probably take 10 litres. I use the app My lpg.eu which shows me 3 different sites within 9km between 60-99 cents per litre at the moment in Germany. The gauges are only a guide, best not to run out.
 
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Is that the little plastic one on the neck? If so, no, not accurate.
 
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Gromett said:
Is that the little plastic one on the neck? If so, no, not accurate.
Click to expand...

The one I had and I believe the OP is referring to as he said the gauge is in their van, is this LED gauge.

1657657424703.png
 
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There is also https://www.autogas.app which I find easier to use and just as accurate as mylpg.eu
Don't forget that one of the big advantages of a refillable tank is that you can top it up at any time. You don't need to wait for it to become empty.

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Our Autocruise has an underslung tank of 30 ltrs. We had a week away in Cornwall in March and nearly three weeks in France in June. When we bought the van in February, the LED "gauge" showed full. Being new to us we had no idea how much was in there. Given that we can't use the fridge on EHU at the moment, we are using the gas all the time.

In France, we decided to fill it to see a. how much we had used and b. to try and work out how accurate the gauge was, as it hadn't dropped at all. It took just over 2 ltrs. So I would guess ours is pretty accurate, but we will leave it untill the lights change this time to get a better idea.
 
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Rocking Rivet said:
The "Gas It" gauge in the van says we have 4 bars left in the gas tank Can anyone tell me how accurate they are? Are they like fuel tank gauges ,as in, when the get below half full they seem to fall off a cliff!
Note: There are 10 bars in total on the gauge.

I have a 25lt gas tank in my Autosleeper Nuevo (which we love and is just the right size for us). Before, in our bigger older vans, we always had gas bottles, so I have no idea when I should consider re-filling the gas tank.

I am hoping it will last 5 days so I can fill up before going to France, or should I wait until in France, to save money?

Which reminds me, is there an APP for LPG suppliers in France?

Note: I have a set of
Click to expand...
I filled up with gas this afternoon when the gauge displayed 3 bars, after topping up with 11.8 litres the gauge showed full.

AF97EC7F-8937-4DDC-B1DF-D47FF42D50B0.jpeg 037CF1CA-F6F3-4916-A384-1F18A79B5529.jpeg
 
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I’ve got the exact same system and always found it to be reasonably accurate.
 
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Spanner said:
I filled up with gas this afternoon when the gauge displayed 3 bars, after topping up with 11.8 litres the gauge showed full.

View attachment 640982 View attachment 640983
Click to expand...

That's meaningless unless you were watching the LED gauge as it filled as it may well have registered full when you had only put say 9 litres in.

The LED gauge we had on our underslung would read full before it was and registered empty when there was still about 20% left in the tank, which is why I outed it for the Mopeka.

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There's an answer to this question on the Gas It website along the lines of it's a guage just like any other fuel guage.
Why don't you try running the tank down to one bar then filling it up. That way you'll have an idea how much is in when the guage says one bar ?
 
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Two on Tour said:
I found our Gas-It gauge to be next to useless, so took it out and fitted a Mopeka Bluetooth sensor which is very accurate.
Click to expand...
Was it easy to remove? I thinking more in terms of the electrical connections than the gauge itself.
 
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PRW said:
Was it easy to remove? I thinking more in terms of the electrical connections than the gauge itself.
Click to expand...

Yes, no need to remove the electrical wiring, you can just simply cap the wiring ends as I did at both the sender and LED gauge ends when having removed them.
 
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I would just fill up at the next lpg station so you dont have any chance of running out.
How much will you save if you wait till you get to France. Not really worth the worry.imo
 
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Fill it up. If its only a 25l tank the saving in France will be peanuts so why risk running out. We have the same gauge and seems to read full until half empty and then goes down quite quickly.

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This gauge is a classic example of something that is precise but not accurate. It is precise because if you put in the same amount of gas the gauge will read the same number of bars. But it is not accurate in that if you add in equal quantities of gas, the gauge doesn't go up by equal number of bars.

Inside the tank is a float on a swinging arm, and the arm end pushes a rod up and down. On the end of the rod is an arrangement that makes a magnet rotate. The magnet makes a sliding resistor rotate, and the gauge measures the resistance. Even with ideal geometry, with the float pivot level with the centre of the tank, and the float arm moving from top to bottom of the tank, it won't be very accurate.

They don't do a different model for each size of tank, so the geometry in your tank probably won't be ideal anyway. However the LED bar levels will be reproducible, and if you note the bar number and the quantity required to fill up, you could eventually produce a chart showing the quantity for each number of bars. If life were long enough...
 
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Two on Tour said:
Yes, no need to remove the electrical wiring, you can just simply cap the wiring ends as I did at both the sender and LED gauge ends when having removed them.
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That's where I was really coming from, should have made my question a bit clearer sorry. How easy was it to get to the sender & LED Gauge ends & where are they situated?
 
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PRW said:
That's where I was really coming from, should have made my question a bit clearer sorry. How easy was it to get to the sender & LED Gauge ends & where are they situated?
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The sender is part of the gas level gauge that's mounted on your underslung tank. Remove the cover as shown in the first photo and you will find the gauge as per the second photo with two wire coming out of it.
You can either just cut the wires and remove the gauge or cut the wire and leave the gauge in situ.

1658159734644.png


1658159853112.png



The back of the LED readout has a small round stub on it that the wires come out of and I had mounted my LED readout as a push on this stub, so all I had to do was pull the readout away from the panel I mounted in on to access the wiring.

1658160170703.png
 
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On my gauge display unit there is a separate +12V supply to power it, that needs disconnecting and isolating if you are removing/decomissioning it.
 
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Two on Tour said:
The sender is part of the gas level gauge that's mounted on your underslung tank. Remove the cover as shown in the first photo and you will find the gauge as per the second photo with two wire coming out of it.
You can either just cut the wires and remove the gauge or cut the wire and leave the gauge in situ.

View attachment 642833

View attachment 642834


The back of the LED readout has a small round stub on it that the wires come out of and I had mounted my LED readout as a push on this stub, so all I had to do was pull the readout away from the panel I mounted in on to access the wiring.

View attachment 642835
Click to expand...
Thanks that's useful.
I've just been speaking with an AS Technician to understand the wiring setup. He stated there were 3 connection for the LPG Gauge.
A green wire which is the wire connected to the tank which sends the level signal, a black wire (-ve) and red wire (-ve) for the 12V supply. I assume therefore when you removed the old LPG Gauge to get access to the wiring you no longer had need for the green wire and connected the black and red wire (the 12V supply) up to your new gauge & that was simply it. No further connections necessary as the gauge now reads the LPG level via the sensor by bluetooth. Have I got that right?

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PRW said:
Thanks that's useful.
I've just been speaking with an AS Technician to understand the wiring setup. He stated there were 3 connection for the LPG Gauge.
A green wire which is the wire connected to the tank which sends the level signal, a black wire (-ve) and red wire (-ve) for the 12V supply. I assume therefore when you removed the old LPG Gauge to get access to the wiring you no longer had need for the green wire and connected the black and red wire (the 12V supply) up to your new gauge & that was simply it. No further connections necessary as the gauge now reads the LPG level via the sensor by bluetooth. Have I got that right?
Click to expand...

If you're going to use the Mopeka LPG gas level sensor then you will not need any of your existing gauge/sender wiring as the Mopeka sensor is powered by a coin cell battery and transmits your tank gas level via Bluetooth to the Mopeka app on your smartphone which is effectively your gauge for reading the gas level.
 
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I have the gasit guage and although not accurate good enough I usually leave mine until it gets down to three lights then top up put 20Lts in this week in France you find it shows full for ages then zips down to half full just fill up as and when I've not run out yet.
 
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Gauge on my underslung 25l (probably 20l useable) is pathetic. Red LED is probably only half empty. Leaves me guessing how much I'll still have and how urgent that refill will be.
 
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Over the last 5 days my “Gas It” gauge has ranged anywhere from 2 bars to full so I bit the bullet and drove a few extra miles and filled up the gas tank. it only took 7lt of gas at £6.30 I was very happy with price and service. The tank was filled for me
 
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Two on Tour said:
I found our Gas-It gauge to be next to useless, so took it out and fitted a Mopeka Bluetooth sensor which is very accurate.
Click to expand...
Hello Two on Tour, how did you go about attaching your Mopeka to your underslung tank? I’d assume you don't rely on just the magnets? Considering they are designed for upright gas bottles how have you found the accuracy? Many thanks
 
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