How old is too old?

**Cribbs74** Tue Nov 15, 2011 10:25 pm

I have some SIG champion fuel that is about 15 years old. Is this still OK to use? It still smells strong and it works well in my black widow. I have not used it on any others as I bought some new 1/2A fuel. I am sure the Castor oil hasn't diminished but what about the Nitro? I also have a really old metal can of COX fuel prob late 60's maybe early 70's. It too smells strong, I have used a tiny bit for cleaning, but thought about running an engine with it. It looks funny, kind of a reddish color, but seeing as I was too young know what older fuel looked like when new lt may be normal. Thought it might be neat to run an old engine with original Cox branded fuel. Thoughts?

**Admin** Tue Nov 15, 2011 11:15 pm

Well, I do know that the fuel can separate and or get water vapor in it. You can always give it a try. I found a can of fuel from the 80s and it did work, I only ran the engine once off so just in case the castor has separated or there was something really wrong with it, it wouldn't do much to the engine.

**RknRusty** Wed Nov 16, 2011 12:12 am

If it was sealed tightly in a metal or glass container, filter it and it's probably okay. If it was in plastic, the volatiles may have off-gassed, especially the nitromethane. Again, filter it and try it. If the weather isn't hot it'll probably work fine with low nitro.

Kim Wed Nov 16, 2011 4:20 am

Shake it up, filter it, and "LIGHT that Candle!"

microflitedude Wed Nov 16, 2011 6:21 am

Make sure it isn't cloudy!

SuperDave Wed Nov 16, 2011 9:11 am

Depending on the quantity of old fuel, if you have a LOT, it might be betst to use it as "weed-killer" in you driveway. Huh...

Why risk contaminating an engine and create possible problems?

Kim Wed Nov 16, 2011 9:19 am

Send it to me Ron...I'LL RUN IT !!!!!

GermanBeez Wed Nov 16, 2011 10:15 am

SuperDave wrote:Depending on the quantity of old fuel, if you have a LOT, it might be betst to use it as "weed-killer" in you driveway.

Why risk contaminating an engine and create possible problems?

i'd get arrested for environment pollution if i dumped that sh** into my garden Shocked

nitroairplane Wed Nov 16, 2011 11:02 am

GermanBeez wrote:
SuperDave wrote:Depending on the quantity of old fuel, if you have a LOT, it might be betst to use it as "weed-killer" in you driveway.

Why risk contaminating an engine and create possible problems?
i'd get arrested for environment pollution if i dumped that sh** into my garden

Once I had to use it on an ant nest!
But yeah why not run it?
I will if you dont want to.

**Cribbs74** Wed Nov 16, 2011 12:00 pm

We'll see, just wanted to know if the stuff was safe or not. I have a run of the mill product engine with not a ton of compression. Would be a good test subject. I will probably keep it away from my tee dees and pee wee's. Thanks all.

nitroairplane Wed Nov 16, 2011 12:17 pm

cribbs74 wrote:We'll see, just wanted to know if the stuff was safe or not. I have a run of the mill product engine with not a ton of compression. Would be a good test subject. I will probably keep it away from my tee dees and pee wee's. Thanks all.

Thats a good idea.

**Cribbs74** Wed Nov 16, 2011 9:09 pm

Kim wrote:Send it to me Ron...I'LL RUN IT !!!!!

Kim,

The sig stuff? sure! The old cox fuel? NO! LOL

Seriously though, I'll try both, the product engine is my trashy......... add any explative you wish. The glow head has got to be the better part of 30yrs old how long do those things last?

Kim Fri Nov 18, 2011 1:48 pm

cribbs74 wrote:
Kim wrote:Send it to me Ron...I'LL RUN IT !!!!!

Kim,

The sig stuff? sure! The old cox fuel? NO! LOL

Seriously though, I'll try both, the product engine is my trashy......... add any explative you wish. The glow head has got to be the better part of 30yrs old how long do those things last?

Now you got ME going...got me a partial can of "Racing Fuel" !!! Guess I'll drag an old dog out and see if he'll hunt!

nitroairplane Fri Nov 18, 2011 3:09 pm

Exoect it to be a lot more messy because the nitro and the methanol may have partially evapourated but the castor wont have so you may have a way higher percentage.

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