I've got a chance to get somewhere between 100 and 150 gallons of mostly biodiesel mixed fuel for around $2 a gallon. Only one catch. It was put into a home heating oil tank that had some red-dyed offroad diesel (furnace fuel) still in the tank.

It doesn't have that really red ATF-looking color to it like straight off-road diesel. It only has a reddish-brown tint to it - about as dark as regular LEADED gas used to look (for those of you - like me - who are old enough to remember what leaded gas looked like). I'm guessing it had around 10%-20% red-dyed diesel left in the tank when it was refilled with biodiesel.

So, since I just picked up 3 of those 275 gallon plastic totes (the kind inside a steel cage made out of 3/16" wire) and a 12 volt transfer pump, I'm thinking of buying it off the guy.

If I buy it I figure I'll be pretty safe running it in my Mercedes, but I'm a little more concerned about running it in my truck. I mean, who's ever even heard of a Mercedes getting it's tank "dipped"? Since I'm getting ready to make a 2200 mile trip, to Moab hauling my camper and towing my Jeep, I'd love to figure out a way to take it with me, but I'm afraid that with my luck, I'd end up encountering a roadblock where they're dipping truck tanks.

I'm wondering, if for the stuff I burn in the truck, if I put some green t-stroke oil - or maybe some filtered WMO into it, will that "disguise" the red coloring? I obvioulsy can't afford to get nailed for burning dyed fuel.

Any thoughts?

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1984 300 Coupe TurboDiesel
Silver blue paint over navy blue interior
2nd owner & 2nd engine in an otherwise
99% original unmolested car
~210k miles on the clock

1986 Ford F250 4x4 Supercab
Charcoal & blue two tone paint over burgundy interior
Banks turbo, DRW, ZF-5 & SMF conversion
152k on the clock - actual mileage unknown