[rushyrulz]

Vinegar and baking soda will contribute greatly to deoxidization of rust as well as exfoliating out any other gunk you'll find on your tracks. Mix 2 parts baking soda with a vinegar solution (1 part vinegar 3 parts water) to make a slurry that you can apply to your tracks with a toothbrush. Tip: this also works on shining old, dirty pennies! You'll have your tracks looking brand new by no time. My secret ingredient is just a pinch of salt - it works wonders.

EDIT: oops sorry thought this was the Model Train Association forum, my bad