Is there a lifespan for fuel? Does ity go bad after awhile? I have three gallons of RedMax, 10% castor that is about 12 years old. Is it safe to use?

The nitro in it may be gone but the alcohol should still be good.
You can still use it, just want get the extra power fron the nitro! :yes:

You may also want to see this:
http://www.uoguelph.ca/~antoon/websites/fuelsafe.htm

Wow! It's not in metal cans, but there's always a risk of static electricity! Thanks for the advice.

Do not believe I would run in an engine. :o !2 years old, should make good medicine for FIRE ANT hills. :)