I run my '96 300tdi Defender on the "biodiesel blend" sold by Volume Plus for about 18 months. I assume that it is close to 100% since their profit margin increases with the percentage of bio in the mix.
I've had my fair share of problems, although I reckon they all boil down to crud in the bio problems, and fuel supply issues that follow when the crud gets caught up in the may hidden filters/gauzes in the fuel system.
I'm planning on installing a ryco filter on the top of the sedimenter just outside the fuel tank. My Defender doesn't have an in tank filter, so the sedimenter is the first place after the fuel tank to fit a fuel filter.
Since you'll be making it yourself you shouldn't have this problem.
I have replaced my lift pump a couple of times, and I have replaced the fuel injection pump at frightening cost as well, but I'm not convinced that the injection pump was a result of bio diesel, the lift pumps might have been.
Cheers
Simon
Bookmarks