Gas in the oil won't harm the engine... As long as you let it warm up slowly, and idle for a while.

Northern aircraft operators had special valves added to the fuel/oil system to pump gas into the sump prior to shutting down. The dilution was timed, and the "boil-off" time was charted based on the time it took to dilute the oil and the outside air temperature. This system allowed a lightweight aircraft battery to turn over a large engine in cold weather. Taking off too soon led to foaming oil sucked out of the breather, and subsequent low oil pressure.


Current fleet (subject to change w/o notice)
\'49 GMC 3/4-Ton , 60 Austin Healey Frog-eye Sprite (some assembly required), 2011 Dodge Avenger, 2015 Jeep Cherokee. No, they don't all run.
My other ride is a (B737)no, (B767)no, A320.... Update... was Embraer E190, now Boeing B787.

Knowledge is a wonderful thing, but ignorance means you don't know you can't do something.