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No Galvanized Cans for Diesel?
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Oldwrench View Drop Down
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Joined: 12 Jan 2020
Location: Northeast
Points: 142 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Oldwrench Quote  Post ReplyReply Direct Link To This Post Topic: No Galvanized Cans for Diesel?
    Posted: 12 Jul 2023 at 7:27am
The manual for my old JD excavator has bold faced warnings not to use galvanized can for diesel fuel, but without any explanation.  Most of the fuel cans I use are plastic, but I have several nice old metal ones that I also use once in a while.  One I think might be galvanized, the other is obviously plain steel.  The galvanized one looks perfect inside, so I don't see where diesel has corroded anything.

Will using anything galvanized with diesel create problems?  What happens with galvanized and diesel?
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
Location: illinois
Points: 86258 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jul 2023 at 8:34am
it is a very, very slow process, but YES it can happen...

Does diesel react with galvanized steel?
This is because when the diesel comes into contact with galvanised steel there is a chemical reaction that takes place between the diesel and the zinc that is used to galvanise the steel. The reaction causes deposits to build up at the tips of fuel injectors which can then lead to further problems.Jan 14, 2020


Edited by steve(ill) - 12 Jul 2023 at 8:35am
Like them all, but love the "B"s.
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rw View Drop Down
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Joined: 28 Oct 2009
Location: United States
Points: 384 		Post Options Post Options   Thanks (0) Thanks(0)   Quote rw Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jul 2023 at 4:43pm
The galvanized cans are great for keeping rust out of the fuel system. The warning against the zinc I read about had to do with zinc attaching to the fuel in storage and when burned contaminating the catalyst part of the after treatment system on models with Diesel oxidation catalyst. We started using black pipe when plumbing our new pickup truck bed tanks, transfer pumps and filters at the construction company where I work.   
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