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winabbey
 Post subject: Re: Penrite Hydro Fluid
PostPosted: Wed Jan 28, 2015 9:09 pm 
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Bubbacluby wrote:
The first fluid was red and from memory this caused squeaking with early cars, so they had the change the recipe. I think I have a bulletin somewhere explaining it


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Bubbacluby
 Post subject: Re: Penrite Hydro Fluid
PostPosted: Wed Jan 28, 2015 9:13 pm 
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Ahh blue not red :)

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drmini in aust
 Post subject: Re: Penrite Hydro Fluid
PostPosted: Thu Jan 29, 2015 6:48 am 
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I'd suspect the `lubricity additive' to probably be glycol?

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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1071 S
 Post subject: Re: Penrite Hydro Fluid
PostPosted: Thu Jan 29, 2015 4:33 pm 
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So what is "Union Carbide HP5100" ???

The UK stuff is basically water and alcohol (metho/vodka??) with some anticorrosive (triethan c ..) and micro biocide (sodium m..) added. Maybe substitute the last two with some soluble oil and water bed conditioner??? Going by the chemical warning sheets I'd be very careful if I had a UK car with original fluid..

Ehtylene g is some 16 times as viscous as water so Doc may be correct ....but I think the HP5100 may be the key...

The car I ran in the US used a 30(odd)% antifreeze and water mixture (home made) and seemed fine (didn't notice any squeaking..) We used a similar device to goodie's except for an inline pressure gauge...

Cheers, Ian
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Bill B
 Post subject: Re: Penrite Hydro Fluid
PostPosted: Fri Jan 30, 2015 9:05 am 
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Anglomoil at Mt Colah sell hydrolastic "suspension fluid" which I have used for many years. The father of one of their owners made the fluid at HC Sleigh for BMC/Leyland.
I believe Mini King sourced fluid from them too.
Bill.
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