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On 19 Apr 2001, at 2:43, Chazpix@aol.com wrote: > Kevin, you should rinse the tank w/ what's called a metal conditioner > first(check with auto paint supply shops-either DuPont or PPG makes > it). It basically strips the light rust and dissolves the built-up > varnish inside the tank. Let dry well and then move to the tank > sealer.It HAS to be a made-only-for-gas tanks sealer! No name or > undetermined types could cause problems in time.(read nightmare > permanent fuel system gum!) While this may work okay for cars with carbs, I really don't recommend ANY kind of coating for the inside of FI gas tanks. There are just too many little nooks and crannies in there which are important to keep open. I think that what most people don't realize is that gasoline, which is a petroleum product, is a pretty good rust inhibitor all by itself. If you can keep the water out of your tank it won't rust. At least not on the inside. My 35 year old tanks on my cars still look brite and rust free inside. I have some tanks that have been off cars and in dry storage for a long time. Those tanks now have a layer of surface rust inside them. This is not even close to getting deep enough to cause a problem, but it would turn a filter dark for awhile if they were put back into service. I would not hesitate to do this, but I would probably change the filter in 12 months. - Jim Adney jadney@vwtype3.org Madison, WI 53711-3054 USA ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org