Reply back from Spectra Premium Industries on their
Tank # GM55A which is made in Canada.
Yes they are compatible for gas and diesel they are made of NI TERN STEEL see below definition of our NI TERNE STELL,
Spectra Premium Industries' fuel tanks are made in Canada from U.S. Steel's "Ni-Terne" material. The annealed cold-rolled steel sheet is first processed to apply a thin flash coating of electrodeposited nickel, and then it's given a hot-dip lead-tin alloy coating. The nickel base coat gives Ni-Terne steel an extra measure of corrosion resistance compared to U.S. Steel's regular "Terne" steel sheet and also compared to traditional galvanizing, which isn't readily available anymore. It should also be pointed out that the Ni-Terne coating protects both interior and exterior surfaces of the fuel tank from surface corrosion.
That sounds good to me, I'm familiar with Terne. A lead and tin corrosion resistant coating. At one time standing seam roofing metal/steel was usually "Terne metal" now much less common in that industry.
Some of the re sellers of these tanks seem to incorrectly list them as zinc coated.
Can't speak to the imported (from overseas) tanks and what they would be coated with.
Grigg
