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The relevant graphic from the above mentioned publication by Joe Fugate.

Thanks Rob Morrison for the link! In essence, the further up on the list, the less polar = the better for track cleaning and prevention of microarcing/oxidation (the dreaded black stuff).

On Mon, 7 Jun 2021 at 02:28, Robert Morrison via <robmorrison42=[email protected]> wrote:

Gentlemen,

In the February issue of the Running Extra portion of the Model Railroading Hobbyist magazine, Joe Fugate wrote" Better track cleaning update …”. This is a follow up to his article in the May 2019 issue of MRH “Keeping your track and wheels clean…"
In it he lists the dielectric properties of various solvents used to clean track, with lower dielectric constant being better for cleaning track. The lowest solvents listed are:
Kerosene ??- ?bad smell
Deluxe Materials Track Magic
WD-40 Contact Cleaner
CRC contact cleaner and Protectant
Regular WD-40 is not quite as good as WD-40 Contact Cleaner

Since the February article is part of a paid for publication, I cannot include it here. The May 2019 article from MRH is free and available at?


Here’s hoping this helps.

Rob Morrison