I can't comment on the tune for the ecodiesel because I have yet to do it. The pipes are hanging in the garage. I don't even know how well they fit.
I can tell you the tunes on my German Diesels are spot on. I was trying to wait for the first oil change before tearing into it. Past actions...
I keep 2 five gallon cans in the garage. I only add 25 to 50 ounces to a tankfull, depending on vehicle. It lasts me months and I drive a lot.
My source is 45 miles away. I think it is worth it. When VW TDIs were popping HPFPs it was blamed on US diesel lubricity. Mine went 200k
Thanks John
I have that study on file somewhere, but I can't find it. Biodiesel.org has a retail locator on their website. I am lucky enough to have B99 available which makes it very economical as an additive. B20 is much more common. Of course you have to use much more which may or may not be...
I am using a programmer I have never read about in a Dodge forum as well. I have German diesels with deletes, and I am going with these suppliers for my Ecodiesel.