safe to use B100 in a 84 190d?
 

Anyone know if this model has rubber components that b100 could deteriorate? If so, can they be replaced with viton psrts?
Thanks!

From my experience, my 190 started leaking from the injector return lines after running a few tanks of B99. It forced me to go back to running straight diesel until I get the lines sorted out. :( None of the soft fuel lines on the 190s are rated for biodiesel. While you could get lucky and not develop any leaks, I would plan on getting the viton lines. Unfortunately, I am not sure where to get them... perhaps someone else on here could chime in on that.

The return lines generally need replacing anywho (they weep and then the biodiesel comes along and opens them up the rest of the way).

So whatever starts seeping is probably just an eariler indicator of a current problem. I put regular mercedes brand non-viton hoses on my return lines and just keep some spare on hand.
So far so good. The worst that it can do is eat up a few dollars in hoses over the course of few years. :)