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BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5858 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

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fluid viscosities
Posted by: BlownMGB-V8
Date: January 17, 2016 03:22PM

It's time to fill my wing cylinders and reservoirs. So I tried 0w20 oil and it was way too thick. As an experiment I tried kerosene and it was plenty thin enough but lacks lubricity. I just finished running some viscosity checks looking for something in between that might work. My test rig is a small funnel sitting on a collection cup, I fill the funnel to the top, start my timer and see how long it takes to empty.

For a baseline, water takes 2.8 seconds
kerosene takes 3s
Dot 5 silicone brake fluid = 18s
full synthetic ATF = 33s
0w20 synthetic oil = 63s

So the Dot 5 represents a x4 improvement over the 0w20 oil.

I would like to find something in about the 10sec range or less. Diesel fuel is not a real good choice since it can jell at cold temps but might work with the Lucas additive. It also might work as a thinning agent for the ATF if the ATF would eliminate the jelling concern. Silicon oils in lower viscosities are available but likely to be expensive and difficult to obtain. Volatility is somewhat of a concern in the event of a leak simply to lessen the risk of flammability.

Anyone have any suggestions?

Jim


rficalora
Rob Ficalora
Willis, TX
(2648 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

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Re: fluid viscosities
Posted by: rficalora
Date: January 17, 2016 09:17PM

Mineral oil?


DiDueColpi
Fred Key
West coast - Canada
(1259 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
What if the Hokey Pokey really is what it's all about?

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Re: fluid viscosities
Posted by: DiDueColpi
Date: January 18, 2016 02:24AM

What about shock oil Jim?
It's available from 0W to around 15w
The best stuff is available from the mountain bike guys.
We use it to tune stock shocks when we aren"t allowed adjustables.

Cheers
Fred


MGBV8
Carl Floyd
Kingsport, TN
(3824 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB, Buick 215

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Re: fluid viscosities
Posted by: MGBV8
Date: January 18, 2016 11:59AM

Kerosene lacks lubricity? Add some.

[fastexocet.co.uk]

Not sure of the viscosity, but what about coal oil?

Some serious reading on suspension fluids:

[www.peterverdone.com]


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5858 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: fluid viscosities
Posted by: BlownMGB-V8
Date: January 18, 2016 12:31PM

Looks like the RedLine Blue or Clear would be the best choices. I'll have to find a retailer for RedLine and check it's compatibility with hose materials.

Jim


Dan B
Dan Blackwood
South Charleston, WV
(973 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

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Re: fluid viscosities
Posted by: Dan B
Date: January 18, 2016 10:47PM

Get Redline on Amazon. Coal oil is Kerosene. Isn't diesel fuel just kerosene with motor oil dissolved in it?


flyinlow
Kevin .
Elko NV
(84 posts)

Registered:
01/25/2011 04:52PM

Main British Car:
1964 Spitfire Ford 5.0

Re: fluid viscosities
Posted by: flyinlow
Date: January 19, 2016 11:06AM

Coal oil and kerosene are not the same thing but typically can be used interchangeably. Diesel is a longer chain hydrocarbon and has more btu than Kerosene.


DiDueColpi
Fred Key
West coast - Canada
(1259 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
What if the Hokey Pokey really is what it's all about?

authors avatar
Re: fluid viscosities
Posted by: DiDueColpi
Date: January 19, 2016 12:05PM

Yeah, but after a few they all start to taste the same.


flyinlow
Kevin .
Elko NV
(84 posts)

Registered:
01/25/2011 04:52PM

Main British Car:
1964 Spitfire Ford 5.0

Re: fluid viscosities
Posted by: flyinlow
Date: January 19, 2016 07:30PM

LOL


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