I am working with local regulators to bring a pilot program for Biosdiesel to Tucson. One of the victims is my 1975 240D. Question: I will be running 20% blend to start with--has anyone with a W115 gone through changing the fuel lines for Biodiesel? Where did you get the parts, or are new OEM replacements sufficient? Thanks! Andrew Seidel.

__________________
86 560SEC
85 500SEC Lorinser
83 300D Turbo
75 240D

I only have experience with the fuel system on a 200d and my current 300d. At a 20% ratio using commercial grade bio I wouldn't worry about it. Even if you are making the stuff yourself the methanol content at 20% bio would be very low. Remember bio diesel has been used in Germany for over 20 years, Mercedes are built to handle the stuff. I replaced all the rubber lines using stock fuel hose from the dealer about 40k ago when I started using bio. They were almost 20 years old then, and the new stuff shows no damage from going on two years now of up to 100% home made unwashed bio. (unwashed is leaving all residual methanol in the end product) Since methanol is the highest cost item in making bio all commercial vendors extract any they can for reuse.

Thanks for the quick reply! I'm looking forward to the start of the pilot program. Cheers, Andrew Seidel.

__________________
86 560SEC
85 500SEC Lorinser
83 300D Turbo
75 240D

You can run the Mercedes on pure veg-oil, used or fresh as well
Why go to the trouble of making BioD out of it when you can use it "raw"?

Alastair, At Keeping It Simple Div. SWC.

__________________
http://i190.photobucket.com/albums/z...0TDnoplate.jpg

Alastair AKA H.C.II South Wales, U.K. based member

W123, 1985 300TD Wagon, 256K,
-Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.

W114, 1975 280E Custard Yellow,
-Great above decks needs chassis welding--Really will do it this year....

At B20 blend the original fuel lines will be OK
I would replace the hoses with standard fuel line If only for piece of mind. The pipe that's in it just now, if original, will be pretty knackered on dinodiesel.
One thing to note as Biodiesel is an extremely effective tank cleaner change the fuel filters and carry a spare, 27yrs of crap in the tank will be easily shifted on Bio!
As Alastair said the MB fuel pumps are just about bullit proof, and the Germans have had many years experience. In fact if you drive in France any diesel you buy has at least 10% Biodiesel in it (called diester in France)

Your emmissions will be lower, the lubrication qualities of the fuel improved and at least some of the CO2 is renewable

IF and it's a big IF I thought I could filter the used oil or find new oil at a good price I would try a tank of SVO. However the reason I turn the stuff into bio is it's very close to being as thin as regular dino fuel, and the conversion gets all the nasty stuff out of the used oil.

Alistair is your man for that info,
If you filter to 5microns? and take the chips out WVO will be OK
As for new oil I had an empty tank the other day and put 6L in from the supermarket, and apart from the smell I could tell no difference

Thank you for the replies. I saw a report that even 1% Bio provides an improvment in lubircity. I won't be running SVO because the pilot program calls for data on the 20% blend. Cheers, Andrew Seidel.

__________________
86 560SEC
85 500SEC Lorinser
83 300D Turbo
75 240D