Hi guys. I managed to find a 20 litre drum full of this fluid. Does anybody know much about it or used it. Is it good, bad, or the ducks nuts....
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| Hydro fluid https://www.ausmini.com/forums/viewtopic.php?f=2&t=96832 |
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| Author: | iansmini67 [ Sat Feb 17, 2018 2:36 am ] |
| Post subject: | Hydro fluid |
Hi guys. I managed to find a 20 litre drum full of this fluid. Does anybody know much about it or used it. Is it good, bad, or the ducks nuts.... Sent from my SM-G955F using Tapatalk |
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| Author: | Bill B [ Sat Feb 17, 2018 10:31 am ] |
| Post subject: | Re: Hydro fluid |
Yes. That is good. I have been using it for a long time. I would suspect it is commonly sold and used in Australia. I bought from the factory at the address on the tin. The owner told me his father worked for H.C. Sleigh who originally made it for BMC Aust. and this was as close as possible to the original formula. |
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| Author: | iansmini67 [ Sat Feb 17, 2018 12:21 pm ] |
| Post subject: | Re: Hydro fluid |
Bill B wrote: Yes. That is good. I have been using it for a long time. I would suspect it is commonly sold and used in Australia. I bought from the factory at the address on the tin. The owner told me his father worked for H.C. Sleigh who originally made it for BMC Aust. and this was as close as possible to the original formula. Well that is good news. Thankyou.Sent from my SM-G955F using Tapatalk |
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| Author: | deluxe67 [ Sat Feb 17, 2018 12:36 pm ] |
| Post subject: | Re: Hydro fluid |
Specially formulated? Wow, must really hard to make a batch of 50/50 IPA (isopropyl alcohol) and water! Pretty sure its IPA, I'm a petroleum chemist and used it loads of times, has a distinctive smell. Can probably buy 20L drums of the stuff really cheap, it's a bog standard industrial solvent... Edit: I stand corrected. The stuff is apparently 49% alcohol, 49% water, the remainder being a "lubricant" and corrosion inhibitor. |
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| Author: | cooperess [ Sat Feb 17, 2018 1:02 pm ] |
| Post subject: | Re: Hydro fluid |
They still sell it, I bought some last month. |
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| Author: | simon k [ Sat Feb 17, 2018 2:21 pm ] |
| Post subject: | Re: Hydro fluid |
they sell it at autobarn, repco and supercheap too, it's called 'antifreeze' |
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| Author: | GundyGuy [ Sat Feb 17, 2018 4:52 pm ] |
| Post subject: | Re: Hydro fluid |
deluxe67 wrote: Specially formulated? Wow, must really hard to make a batch of 50/50 IPA (isopropyl alcohol) and water! Pretty sure its IPA, I'm a petroleum chemist and used it loads of times, has a distinctive smell. Can probably buy 20L drums of the stuff really cheap, it's a bog standard industrial solvent... Edit: I stand corrected. The stuff is apparently 49% alcohol, 49% water, the remainder being a "lubricant" and corrosion inhibitor. Methanol is what i use when making a brew |
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| Author: | Bubbacluby [ Sat Feb 17, 2018 6:50 pm ] |
| Post subject: | Re: Hydro fluid |
cooperess wrote: They still sell it, I bought some last month. What does 20L Cost? |
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| Author: | Bill B [ Sun Feb 18, 2018 11:02 am ] |
| Post subject: | Re: Hydro fluid |
Some information about various versions of hydrolastic fluid on sale. Tony Cripps is a member of the BMC-Leyland Heritage Group. http://www.amvcnsw.com.au/austin1800/WS ... 0fluid.pdf |
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| Author: | winabbey [ Sun Feb 18, 2018 3:50 pm ] |
| Post subject: | Re: Hydro fluid |
Bill B wrote: Some information about various versions of hydrolastic fluid on sale. Tony Cripps is a member of the BMC-Leyland Heritage Group. http://www.amvcnsw.com.au/austin1800/WS ... 0fluid.pdf He left out MKO as a local supplier - https://minikingdomonline.com.au/produc ... l-formula/ Here's a few threads about hydro fluid. In the first one I posted some of the BMC documentation mentioned by Tony Cripps. http://www.ausmini.com/forums/viewtopic.php?f=2&t=88452 http://www.ausmini.com/forums/viewtopic.php?f=2&t=96145 |
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| Author: | Ian_B [ Sun Feb 18, 2018 4:26 pm ] |
| Post subject: | Re: Hydro fluid |
They use alcohol as it forms an azeotrope with water and prevents corrosion. 
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| Author: | drmini in aust [ Mon Feb 19, 2018 6:50 am ] |
| Post subject: | Re: Hydro fluid |
I have used ethylene glycol/deionised water 50:50. Commonly used in USA. |
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| Author: | deluxe67 [ Mon Feb 19, 2018 12:59 pm ] |
| Post subject: | Re: Hydro fluid |
That'd do it Doc I reckon. The corrosion inhibitor in the coolant will do the trick... Out of curiosity, what volume of the stuff is required? Note: If you really got stuck you could just use water as a temporary solution. It's a fluid therefore non compressible, probably change the suspension characteristics somewhat however? |
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| Author: | drmini in aust [ Mon Feb 19, 2018 1:50 pm ] |
| Post subject: | Re: Hydro fluid |
I think Simon K uses straight glycol concentrate as it's a bit thicker and damps better. I reckon a litre each side, mix 4L up and you will have half it left after pump up, let down fast, and pump up again. |
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| Author: | deluxe67 [ Mon Feb 19, 2018 2:54 pm ] |
| Post subject: | Re: Hydro fluid |
Is that all? Only a couple of litres?! I wonder how viscosity sensitive the system is? Seems not much, there'd be a fair difference in viscosity between an alcohol/ water brew and straight ethylene glycol I imagine. (could try and look it up, surely there is a viscosity spec somewhere). I imagine the key to whatever you use is having a corrosion inhibitor... |
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