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Post  fargophil Sat Jan 08, 2022 5:35 pm

My LHS has 35% car fuel with a 9% oil content, how much castor should I add to make this fuel usable in?a Tee dee .049? A second question, what is the formula to calculate the additional amount so I can calculate the correct amount for a different blend if necessary
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Post  kevin king Sat Jan 08, 2022 6:47 pm

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Last edited by kevin king on Sat Jan 08, 2022 7:58 pm; edited 1 time in total
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Post  crankbndr Sat Jan 08, 2022 6:51 pm

If you want to use arithmetic you need to figure percentages of total volume. If you add 3 or 4 oz caster per qt. should be fine.



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Post  944_Jim Sat Jan 08, 2022 8:49 pm

The fuel blend mixtures for Cox engines are here:
https://coxengines.ca/engine-and-fuel-guides.html


A really good fuel/oil calculator is available that allows for mixing two fuels, and takes into account synthetic/castor blends. Play the calculator with only one fuel by using the same numbers in both fuel "spots." I'll let the webpage guide you:
http://web2.murraystate.edu/andy.batts/ps/fuel.htm
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Post  Oldenginerod Sun Jan 09, 2022 12:41 am

@fargophil wrote:My LHS has 35% car fuel with a 9% oil content, how much castor should I add to make this fuel usable in?a Tee dee .049? A second question, what is the formula to calculate the additional amount so I can calculate the correct amount for a different blend if necessary

I like this calculator.  Simple to understand.

http://www.nitrorc.com/default2.asp?Introduction=http://www.nitrorc.com/fuelws/
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Post  Levent Suberk Sun Jan 09, 2022 4:18 am

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