Thread: Filling with LPG - when is it "full" full?

theres an auto shut off valve built into the tank you keep filling till it stops if you want more in there.

the difference is the delivery flow rate and pressure of the pumps used (ignoring temp, how full the supply tank is, the angle of your tank) the better pumps will keep the flow rate up until the shut off valve closes the tank. The hand piece should "Click" off once delivery drops below a certain rate/pressure differential.

From what I remember your tank should be full at 68 litres from dead empty. (bracketed Falcon tank 85 litres water capacity).
Much more going in means your automatic fill level (AFL) valve is faulty and needs to be replaced. Over filling a tank on a cold morning means by mid afternoon the tank is getting hot enough to leak from the relief valve, possibly resulting in a visit from a fire truck, possibly your truck going up in flames if someone chucks a fag end under it.

Originally Posted by bee utey

From what I remember your tank should be full at 68 litres from dead empty. (bracketed Falcon tank 85 litres water capacity).
Much more going in means your automatic fill level (AFL) valve is faulty and needs to be replaced. Over filling a tank on a cold morning means by mid afternoon the tank is getting hot enough to leak from the relief valve, possibly resulting in a visit from a fire truck, possibly your truck going up in flames if someone chucks a fag end under it.

I guess what is hard to work out is when it is dead empty. I've never run it right out, it was close once, to the point where the car was starting to get sluggish and lacked power, that was around 50km after the empty light came on, I seem to remember that time I put about 66 litres into it, but most times I fill up now when it has just gone into the red (as my carby needs kitting and I haven't found the time yet so petrol side doesn't run correctly) and the most it has taken is around 60 to 62 litres. It just seemed to me like some pumps seem to fill for longer than others before going to slow mode, but maybe it is variances in my driving or the temperature at the time of filling, seems to be pretty consistent when filling at the same place and time of day and approximately the same number of ks between fills.

All up I'm happy with the savings, on average my running costs have shrunk from $100 per week to $40 a week by changing to the gas. It helps when filling at a woolies petrol where I often get either 8 or 12 cents off, with gas already at 58.9 that makes it very good.

58.9 in Brisbane, that stinks. The best you can get in Canberra (before the Wollies savings) is 64.9.

Any idea if the tax that is supposed to come onto gas is going to go ahead?

You have to check that your LPG tank is full by lighting a match and peering in....







Umm, no, don't.

How often do the gas tanks and valves need to be checked and who does it?

A good safe practise when filling with LPG is to always wear a good protective glove. If the valve in the filler fails and you get any blowback your hand is cactus, as it will be instantly suffering severe cold burn.


Cheers, Mick

Originally Posted by mick88

A good safe practise when filling with LPG is to always wear a good protective glove. If the valve in the filler fails and you get any blowback your hand is cactus, as it will be instantly suffering severe cold burn.


Cheers, Mick

I've lost count of the times I've had liquid LPG leak on my hands for whatever reason, never yet got frostbite. It takes more than just a second of exposure to get cold burns. Propane boils at -40C, Butane at 0C. Now I wouldn't do it with say, liquid nitrogen though.

Anyway you may get some splash with a leaking filler connection, but as the discharge is sideways you normally get time to move away. If it was as dangerous as you say there would be government rules against untrained plebs filling their cars.