Its plausible....New engines come with a small amount of fine grade oil. Ive run an engine with this quantity for approx 10 mins before it overheated and siezed. Let it cool completely then repeated the process until it siezed again. My point is who knows...if she had a small lawn its possible. Or someone put some STP in it as it will run for much longer with a small amount, as it coats the parts and stays on them...Anyways interesting:)
