BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6470 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
fluid viscosities
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 |
DiDueColpi Fred Key West coast - Canada (1365 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: fluid viscosities
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 (4512 posts) Registered: 10/23/2007 11:32PM Main British Car: 1979 MGB Buick 215 |
Re: fluid viscosities
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 (6470 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: fluid viscosities
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 (1007 posts) Registered: 11/06/2007 01:55PM Main British Car: 1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl |
Re: fluid viscosities
Get Redline on Amazon. Coal oil is Kerosene. Isn't diesel fuel just kerosene with motor oil dissolved in it?
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flyinlow Kevin . Elko NV (84 posts) Registered: 01/25/2011 04:52PM Main British Car: 1964 Spitfire Ford 5.0 |
Re: fluid viscosities
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.
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DiDueColpi Fred Key West coast - Canada (1365 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: fluid viscosities
Yeah, but after a few they all start to taste the same.
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