I fried a K&B .61 this season using some old fuel fuel, it was pink....it had
turned brown. I used it by mistake. You can believe it or not....your choice.

I had two buddies there watching my Ultra Stick fly. I noticed there wasn't
a smoke trail from the engine....I said it outloud. Before I throttled back to
land and richen up the mixture (I thought) the engine died. When I retrieved
the plane it was devoid of compression.

I haven't taken the engine apart, been busy....I just put another engine in
the plane.

My recommendation....dump the fuel. Been there....done that.

BTW....I'm not a "fuel retailer".

FBD.