Have you ever had an REAL engine failure

[Richard]

I can tell you what the signs are for auto mixed in with the av fuel. In one day 12 planes started leaking fuel. Apparently auto fuel eats up alot of the fuel system components. This happened about 8 months ago. One of the plane owners is an attorney. He's got the suit started. I don't think it is my best interest to mention who the FBO was at this time.

Also, when auto is mixed with AV fuel, it has a citrus smell from the exhaust.

Interesting though, the front ran fine. The rear would vapor lock at 9k and above, or 23" mp and higher.