If I understand the situation as outlined in Yachting Monthly this month, we are strongly advised not to take red diesel to France in cans, though we should be OK if it's in the main tank. Having a small tank I think it's prudent seamenship to take a couple of jerry cans of diesel if I'm going offshore. If I go to France, my plan is to dump the red diesel in the cans into the tank and fill them with road-duty paid diesel and keep the receipt. Or will I still end up on the wrong side of some officious French funcionierre?