BS,

OK, bulk fuel guys aloy of time deliver undyed fuel and have you sign an ag exempt sheet for you tractor. This is my case.

Otherwise keep several empty trans fluid qt bottles in the trunk and say, oh I add that red stuff for the injectors.

And last I and nobody I know have ever had their fuel checked. The guys busted are loggers that use fuel from their tote tank for the skidders.

30 years of experience on major highways with trucks and p/u's and Oldsmobiles. and merc's on the tractor push water.

Don't get paranoid.