Thanks for posting this. It sounds like something you could do
yourself. I wonder what strength of citric acid they used? It could
also mean if you don't have a catalytic converter you could pick a
used one up from a wreck and clean it up for use on your own car. I
think... I don't know
http://www.nature.com/news/2005/050425/full/050425-10.html
Clean catalytic converters help to keep pollution down.
The age-old household tip that lemon juice makes for a great cleaning agent has
found new use in the garage.
Researchers have found that a simple wash of citric acid can spruce
