My wife recently failed to properly tighten the fuel cap, and it spilled a fair amount of B99 into the trunk locker. You may just need a new cap.
Casey Olympia, WA Biodiesel: "I drive in a persistent vegetative state" '87 300TD intercooler #22 (214k) '84 300D (212k) Gashuffer: '89 Vanagon Wolfsburg Edition (187K)