Water in Fuel light with WVO blending

[Adam]

I'm blending fairly rich in my L400 right now (60-70% WVO) and the water in fuel light just came on. What should I do about this? The van is starting without an issue, which is a bit of a surprise given the temp outside. Do I need to drain the water from my fuel filter, if so, how do I do that? I haven't spent much time looking at the L400 engine, so I'm not even sure where my fuel filter is.

[mararmeisto]

Sounds like you've got water in your WVO.

Fuel filter on an L400, if I remember correctly, is tucked in behind the intercooler. It's a pig to get at - have fun.

The drain is on the bottom. Open that until fuel comes out. Shut it. Drive away with no light on the dash.

[Adam]

Yeah, I thought it would probably be under the intercooler, thanks. I'll have to wait until I drive home tonight to take care of it.

[jessef]

Last fall in Oct I was blending 60/40 wvo/diesel and after a month it pooped on me. I had to drain the tank, crack inject lines, prime, bleed, crack lines, and repeated a number of times before I got a good start and no more bogging at throttle.

L400 liked blending up until then. Had the water light on as well. I'd recommend to run a few tanks without blending to clean your system otherwise you may end up like me back then.

Getting cold !

[Adam]

Thanks for the help. I know 60-70% is getting pretty greedy for this time of the year. I just haven't had the time to install my kit yet, so I thought I'd see how far I could push it before I got hard starts. I think after this I'll back off to 30-40% and see how that goes. I just hate burning more diesel than I need when I have 3000L of WVO just waiting to be burnt.