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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> RC Fuels >> oil percentages...
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oil percentages... - 3/1/2008 10:50:33 PM   
Timmer01


 

Posts: 20
Joined: 2/12/2008
From: Dayton, OH, USA
Status: offline 		heres what i have one gallon, 5%nitro 18% total oil. of the oil, 80% is synthetic and 20% is castor. i have 8 OZ of medical castor that im going to add, what will that make the oil percentages?
       Post #: 1

RE: oil percentages... - 3/1/2008 11:38:09 PM   
pe reivers



Posts: 2239
Joined: 1/23/2002
From: Arcen, , NETHERLANDS
Status: online 		one gallon is 128 ounces
18% is 0.18x128=23.04 ounces
add 8 ounces, so now you have 31.04 ounces in 136 ounces of fuel
31.04/136=0.23
0.23x100%=23%

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There is sanctuary in analisys.

(in reply to Timmer01)
       Post #: 2

RE: oil percentages... - 3/2/2008 2:38:58 AM   
Timmer01


 

Posts: 20
Joined: 2/12/2008
From: Dayton, OH, USA
Status: offline 		thats some heavy math what i need to know, is what total percent is castor? reason im asking is i need to know that there is enough for this 'ol fox here.

< Message edited by Timmer01 -- 3/2/2008 2:45:03 AM >

(in reply to pe reivers)
       Post #: 3

RE: oil percentages... - 3/2/2008 3:31:46 AM   
downunder



Posts: 3007
Joined: 10/10/2002
From: Adelaide, AUSTRALIA
Status: offline 		To carry on from Pe's figures (thanks Pe ), the original fuel had 23.05 ounces oil of which 20% (1/5th) was castor so 23.04/5=4.608 ounces of castor and 18.432 ounces of synthetic. Add 8 ounces so now there's 12.608 ounces of castor in a total of 31.04 ounces of oil. Castor content of the oil is 40.62%.

I assume from your last post that it's to be used in an old Fox? If it's a Fox 35 then it's still no where near enough castor. The correct fuel for them is 29% all castor.

(in reply to Timmer01)
       Post #: 4

RE: oil percentages... - 3/2/2008 4:14:12 AM   
Timmer01


 

Posts: 20
Joined: 2/12/2008
From: Dayton, OH, USA
Status: offline
quote:

ORIGINAL: downunder

To carry on from Pe's figures (thanks Pe ), the original fuel had 23.05 ounces oil of which 20% (1/5th) was castor so 23.04/5=4.608 ounces of castor and 18.432 ounces of synthetic. Add 8 ounces so now there's 12.608 ounces of castor in a total of 31.04 ounces of oil. Castor content of the oil is 40.62%.

I assume from your last post that it's to be used in an old Fox? If it's a Fox 35 then it's still no where near enough castor. The correct fuel for them is 29% all castor.



No Sir. its a old 46.

id like to have some of fox's fuel 5% nitro and 20% casotor. but it just cost too much. its cheaper to buy castor adn add it. thank you for your math

(in reply to downunder)
       Post #: 5

RE: oil percentages... - 3/2/2008 3:59:30 PM   
d_bodary


 

Posts: 826
Joined: 4/9/2004
From: trenton, MI, USA
Status: offline 		Timmer at the Toledo show i was buying 10% Nitro and 20% Castor from Fox for $10.00 a gallon. It's way cheaper from the Toledo show than at their website.

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       Post #: 6

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