Diesel sulfer

[cp1969]

</font><font color="blueclass=small">( The dye has nothing to do with EPA requirements at all. That I know for fact all across the US. All the dye does is mark it so that if the DOT dips your tanks and you are on-road you will get a fine. You can run red dye fuel on road if you can show that you pay the tax. )</font>

If that is true, then someone needs to update Chevron. From their web site:

The EPA regulations require "visible evidence of the presence of red dye" to identify high sulfur fuels intended for off-road use. In practice, this requires refiners to add a level of red dye that is equivalent to no more than 0.75 pounds/1000 bbl (ptb) of a solid Solvent Red 26 dye standard. Solvent Red 26 was chosen as the standard because it is a unique chemical available in pure form. Diesel fuels are actually dyed with liquid concentrates of Solvent Red 164 because this dye is more fuel soluble and less costly than the standard. Solvent Red 164 is a mixture of isomers that are very similar to Solvent Red 26, except the former incorporates hydrocarbon (alkyl) chains to increase its solubility in petroleum products.

http://www.chevron.com/prodserv/fuels/bulletin/diesel/L2_3_9_rf.htm

 

[SkyPup]

Actually, the Internal Revenue Service Regulations requires the EPA to dye the untaxed high sulfur off road fuel since they are the ones that allow it to be sold without federal taxes.


"IRS regulations require that tax-exempt diesel fuels, both high sulfur and low sulfur, have a minimum level of a Solvent Red 164 dye that is spectrally equivalent to 3.9 ptb of Solvent Red 26 dye standard. This level of dye is more than five times the amount required by the EPA regulations. The IRS contends that the high dye level is necessary to allow detection of tax evasion even after five-fold dilution of dyed fuel with undyed fuel."