What are the biggest problems that cars running biodiesel have?
• It cleans out your fuel system Normal diesel can be foul stuff. Over a period of time it will leave sludge in your fuel system and will even varnish the inside of your fuel tank and pipes. Using any blend of biodiesel will dissolve this rubbish in your tank and move it through the fuel system. This typically causes the fuel filter to block up. The treatment is to change the fuel filter when it begins to block and to keep a spare one with you during the first few thousand miles on green fuel. Symptoms of the fuel filter blocking are rough running, missing in the engine, excessive smoke and loss of power. This is one of the most common disadvantages of biodiesel, but thankfully it is not serious and goes away as soon as the fuel system is flushed. • Material Incompatibility Older vehicles used natural, Buta-N or nitrile rubber components in the fuel pump and in the fuel lines. These rubbers are biodiesel incompatible and will soften, harden or dissolve. As a general rule – any vehicle
