Actually, water vapor is a product of combustion. Sure there is some condensation as well, but combustion of any hydrocarbon will result in the production of water, and thats what is filling the inside of mufflers. Since gasoline is a complex hydrocarbon, you also get CO, CO2, and NOX in there for good measure. - Dave -- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. To post to this group, send email to 1962to1965mopars@xxxxxxxxxxxxxxxxx To unsubscribe from this group, send email to 1962to1965mopars+unsubscribe@xxxxxxxxxxxxxxxxx For more options, visit this group at http://groups.google.com/group/1962to1965mopars?hl=en.