How can I fix this rust problem short of replacement. Is there an additive to stop tank corrosion? Are others having similar problems? My fuel filter has to be replaced every 2000 miles; rust clogs it. Is there a preferred filter? Is it possible to use a magnet to draw away rust particals? When I replaced the pump 2 months ago I thought I got all the rust out. Seems to be fuel related since ethanol has been added to gasoline in the US.