At the risk of bringing in the naysayers, I'll bite.
I have seen firsthand what Prolong will do. Long story short, after using Prolong for six months a buddy had an object puncture his oil pan on the freeway at 75 mph. He drove it until he lost oil pressure (trying to get off the freeway). When we pulled the engine to replace the oil pan and repair whatever damage there was, we were shocked at the lack of damage to the engine. He ended up just replacing the pan and putting it back in. 40,000 miles later, it'* still going strong. Use this as you wish or not.