Implications of using old fuel?
I bought my son a 2nd hand Hyper 8 a few days ago with a Hyper .21 pullstart. Now in my garage I found a 2 litre bottle of Extreme 20% racing fuel that I bought 6-7 months ago, just before I gave up on this hobby for a while ( new $300 engine sezied in the A main warmup). Anyway just wondering if it would still be ok to use? It's been kept inside. I don't want to damage his motor, not that worried if it doesn't run to 100% perfrowmce tho.