T&T: Solvent Red 26 - Wikipedia

[Mike Maurice]

Under the heading of all you never need to know about the red dye in 
diesel fuel, here it is. This class of dyes is not soluble in water, so 
it won't taint the water that is collecting in your diesel tank. This 
class contains many forms, other colors of which are used in other 
countries for similar purposes.

http://en.wikipedia.org/wiki/Solvent_Red_26

Mike

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Capt. Mike Maurice
Beaverton Oregon(Near Portland)