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Lindsay_Palmer
PostPosted: Sat Jun 20, 2009 7:53 pm 
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Do Penrite still make hydrolastic fluid? If they do what do they call it?

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Morris 1100
PostPosted: Sat Jun 20, 2009 8:05 pm 
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Lindsay_Palmer wrote:
Do Penrite still make hydrolastic fluid? If they do what do they call it?

No. They stopped making it a while back. But they did give the directions to mix your own.
It was 33% anti freeze anti boil and 67% distilled water.

They have a tech bulletin on their webpage....
http://www.penriteoil.com.au/tech_pdfs/27_MORRIS&AUSTIN_SUSPENSION_FLUID.pdf
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Morris 1100
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PostPosted: Sat Jun 20, 2009 8:08 pm 
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While looking at the Penrite website I notice that Penrite still recommends the use of ATF in the Mini and Morris 1100 automatic gearbox. :mrgreen:
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Lindsay_Palmer
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PostPosted: Sat Jun 20, 2009 8:15 pm 
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Thanks Morris 1100.

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simon k
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PostPosted: Sat Jun 20, 2009 8:23 pm 
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I'm using straight antifreeze (castrol 98% glycol)

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toymini76
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PostPosted: Sat Jun 20, 2009 9:07 pm 
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I also heard that a dash of metho helps. Not sure if its true or not though. Only 2 or 3% plus coolant and distilled water
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drmini in aust
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PostPosted: Sat Jun 20, 2009 10:06 pm 
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simon k wrote:
I'm using straight antifreeze (castrol 98% glycol)

That's pretty thick, :shock: I'm using 50/50 glycol/distilled water like the Yanks do. :wink:

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simon k
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PostPosted: Sat Jun 20, 2009 11:28 pm 
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drmini in aust wrote:
simon k wrote:
I'm using straight antifreeze (castrol 98% glycol)

That's pretty thick, :shock: I'm using 50/50 glycol/distilled water like the Yanks do. :wink:


yeah, I know... I figure it reduces pitch a bit more

legend has it there was a 'race' formula for hydro fluid, it can only have been more viscous

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Lillee
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PostPosted: Sat Jun 20, 2009 11:39 pm 
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98%! I bought some from Karcraft and Kev and I did mine today. Their formula is more like 30% glycol, 65% water and 5% smelly stuff (probably alchohol).

In truth do you really notice? we let her down today and there's like 1/2 pint of fluid in there in total...

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simon k
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PostPosted: Sat Jun 20, 2009 11:45 pm 
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Lillee wrote:
In truth do you really notice?


buggered if I know :lol:

I don't think it's thick enough to make any difference, I'd suggest the only reason they use water is because it's basically free, whereas glycol costs money. Dunno what it cost you at karcraft, but I wonder if my 5l bottle of coolant was cheaper

the other additive in yours is probably a rust inhibitor, I think other ingredient in my coolant is a rust inhibitor. Not sure because I left the bottle at someones house a few weeks ago when I pumped up his suspension - and it's a 45 minute drive to go and get it :roll:

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Lillee
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PostPosted: Sat Jun 20, 2009 11:50 pm 
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$27 for 5L... Karcraft is 5 mins from my place so not a big deal really

Just do it often, like once a year and you'll be fine I reckon

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Lillee - 1969 Morris Mini K
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MG Rocket
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PostPosted: Sun Jun 21, 2009 6:56 pm 
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Lillee wrote:
$27 for 5L... Karcraft is 5 mins from my place so not a big deal really

Just do it often, like once a year and you'll be fine I reckon

Should I change it that often?
The MG given to me seems to sit and ride ok but I bet it has not been
changed for at least 5 years. But for most of that 5 years it has
been sitting.
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Morris 1100
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PostPosted: Sun Jun 21, 2009 6:58 pm 
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It never needs changing.
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drmini in aust
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PostPosted: Sun Jun 21, 2009 7:01 pm 
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Drain a bit out. If it looks brown (rusty) dump it right down to near zero pressure and refill.
You won't get any air in there, unless you start taking things apart. :wink:

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simon k
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PostPosted: Sun Jun 21, 2009 7:03 pm 
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I like to pump them up and down a few times with plain water, pump it up, rock the car around, squirt it out - I did a car for a guy a few weeks ago and the rusty gunk coming out was like treacle

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