Quote:
Originally posted by Duke2.6
The occasional suphur atoms are locked up in the molecular structure of the various hydrocarbon species and are not an issue until the molecules break apart during combustion.
Duke
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Are you sure? Have you ever seen what H2S does to copper and brass?... it turns black in a hurry! At work one of our functions is to evaluate grease for its effect on brass and copper. It's the sulfur compounds that attack the copper alloys.
From the information I read in this thread, this sounds more and more like excessive sulfur content in gasoline attacking the brass contacts that send the signal.
Anybody up for a quick experiment?... take identical pieces of polished copper, place one in a beaker of Costco gasoline, the other in another brand of gas that you think doesn't have a problem with the fuel senders. Check it from time to time to see how dark the copper strips get. I'm curious what the results may be.