Tony Rupp wrote:When you use a gallon of used vegetable oil, how much bio fuel is created? What is ratio on conversion?
Jason Vath wrote:I was wondering if Biodiesel is, or could be made to be less polluting out the exhaust.
To me diesel exhaust is unacceptable, way too toxic.
Jeff Lewis wrote:What have you heard about making Biodiesel, from algae? have they made any progress?
Wes Cooke wrote:So, what are the pros and cons of WVO vs biodiesel, from an entirely DIY standpoint? My preliminary thoughts... there seems to be a fair amount of the preparation that is similar. Whatever is collected has to be filtered, heated, dewatered, etc. There are obviously some additional steps in making the biodiesel, so I can imagine that the process would be a bit more time consuming.
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.
Andrew Schreiber wrote:1.) I have concerns about how economical it would actually be run a biodiesal plant. Can you elaborate on the cost of set up, and the potential Return on that investment over the life of the system? Wondering primarily if the embedded energy in the establishment and maintenance of the system itself is greater or less than what the system processes. Perhaps there is a optimal scale for production?
2.) I wonder your opinion about where biodiesel stands in relation to other fuel sources, such as woody biomass from a longterm forest systems. In terms of it's resiliency and long-term viability, how can a person. My concern is biodiesel, as a energy-system, is not a net producer of energy. Which means it is invariably propped up by fossil fuels, making it only a short term option for people who have basically free access to waste stream oil, or who have ample and fertile enough land to grow energy crops. So that, a person spending the time and money investing in biodiesel system is going to get only get short term (less than one life time) use out of it. When another type of energy system would be a much more viable option long-term, and so it makes more sense to put the investment in the long-haul resilient technologies.
howie story wrote:It seems the best vehicles for conversion to boi-diesel are the ones made in the 1980 - 1990 's . The engines are simpler to convert, with none of the fancy electronics modules and sensors. Not to mention the much lower purchasing cost.
My preference is towards the VW diesels of this era. What are your experiences with conversion of older (pre 2000) vs newer diesel engines to bio diesel?
Nick Kitchener wrote:Discovering that the amount of methanol involved can be very significant left me feeling rather disappointed.
Am I wrong in my views on biodiesel? Has technology advanced? Is there a process where the other main ingredients can be readily manufactured on a homestead (like ethanol)?
Your comments would be very much appreciated
Adam Geriak wrote:I am wondering if ANY diesel engine can be converted into Biodiesel? Even the very big machines? Does the cost of the transformation increase as size of the machine increases?