Julia Winter wrote:I was excited to buy biodiesel from a station close to my home, when I read the manual and it stated I would VOID my warranty if I used biodiesel. Does anybody know if I'll really damage the car with biodiesel?
from the National Biodiesel Board website
All diesel engine companies warranty the product they make - engines. They warranty their engines for “materials and workmanship.” If there is a problem with an engine part or with engine operation due to an error in manufacturing or assembly within the prescribed warranty period, the problem will be covered by the engine company.
Typically, an engine company will define what fuel the engine was designed for and will recommend the use of that fuel to their customers in their owner's manuals.
Engine companies do not manufacture fuel or fuel components. Therefore, engine companies do not warranty fuel - whether that fuel is biodiesel or petrodiesel fuel. Since engine manufacturers warranty the materials and workmanship of their engines, they do not warranty fuel of any kind. If there are engine problems caused by a fuel (again, whether that fuel is petrodiesel fuel or biodiesel fuel) these problems are not related to the materials or workmanship of the engine, but are the responsibility of the fuel supplier and not the engine manufacturer. Any reputable fuel supplier (biodiesel, petrodiesel, or a blend of both) should stand behind its products and cover any fuel quality problems if they occur.
Therefore, the most important aspect regarding engine warranties and biodiesel is whether an engine manufacturer will void its parts and workmanship warranty when biodiesel is used, and whether the fuel producer or marketer will stand behind its fuels should problems occur.
tel jetson wrote:I've got a 2004 Golf TDI that I run biodiesel in. the word I heard was that the 2003-2005 TDI had the right hoses/gaskets/seals for biodiesel standard, but newer models do not. I haven't bothered to look into that much further, but fuel system material compatibility may be an issue for you.
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