I have 4 gallons of FAI fuel that i special ordered for a particular engine that i never used..... would it be safe to mix a 1:1 ratio of fai fuel with 10 nitro to get 5% nitro fuel?

As Gary Cooper would have said......"Yup"
Regards
JC (Smithville, TX)

Great, i just saved some money

MetallicaJunkie,
I should have said: "Yup....assuming both the FAI fuel and the 10% fuel are good commercial grade fuels."
The 1:1 mix ratio will yield a 5% nitro blended fuel.
FAI fuel is 20% castor.
Your 10% fuel should be at least 18% oil (castor or synthetic oil blend).
When you mix your fuels you should limit the liquid exposure to air as much as possible. Avoid air exposure under humid conditions.
Regards
JC

Check out this website for the fuel mixing formula.
http://www.nitrorc.com/
scroll down to Custom Fuel Blending Workshop and go from there.

thanks for the info, ill call some race shops and see what i can find out

great website, thanks

he local shop sells methanol for 6 bux a gallon.... and the lady i spoke says she is not sure if they sell nitro....hopefully they do now all i need to do is find a good oil additive

I am lucky then, it is around 3.00 a gallon in my area (Sprint Car and Late Model stock car racing). They have it at the pump at the local race shop down the street.

damn, u are luck, i guess since they are the only supplier in about a 3hr radius has to do with why its higher here....