<SNIP> And yes, my firefighter friend just confirmed you can indeed put out a fire with LIQUID gasoline (it's the oxygenated vapors that burn). </SNIP> You can put out a match by dumping a cup of gasoline, but what do you think would happen if you tossed a cup of gasoline onto a cherry red catalytic converter? (Don't try this at home kiddies:-) What the firefighter explained, is exactly why the converter melts down. The unburned gas is vaporized, oxygenated by the catalyst, burned, and overheats the catalytic converter. The "experts" agree that excessive unburned/raw fuel entering catalytic converters is the primary cause of catalyst meltdown. http://www.forparts.com/Converter.htm http://www.car-sound.com/05converter/05reason2.htm http://www.dynomax.com/super_install.stm Gary IN2TIME