Painting " rust" on O guage rails

Would appreciate some advice on painting “rust” on the sides of Lionel O guage tracks. Does one have to use oil based paint or will latex work?
Have tried to paint my track several times, with unsatisfactory results. What “color” should one use, rust just isn’t a color in most paint stores.
Any advice would be appreciated. Reference the the picture on the cover of the September CCT, that would be the “look” desired.

Thanks

Hi Richard,

I have had nice results with Floquil “Rail Brown” paint.

Tim Pignatari

Tim: Thanks for the tip on Floquil, will hunt it down.