[Ohiodiesel]

So for awhile now, I have been running Bio-Diesel in my D. It burns cleaner and I make it myself. One of the things I have been researching as the weather gets colder up here in OH is with Bio-Diesel (and somewhat Fossil Diesel) water can get in the line and cause freezing issues. Some use heaters, others upgrade and use better fuel filters with water extraction as well. I am thinking about getting rid of the OEM filter (I know it has that sensor on the end) or modifying it & changing to a better filter with water extraction. I know they have high-flow filters available with extraction as well and some filter down to 1-2 microns I believe?

Anyone know the "filtering" ability of our OEM filters?

If that would be a waste, possibly just adding water extraction and/or a fuel filter heater for the winter?

Anyone messed with this? I cant find much (custom) about anything Fuel Filter related......

[TDIwyse]

Originally Posted by Ohiodiesel

So for awhile now, I have been running Bio-Diesel in my D. It burns cleaner and I make it myself. One of the things I have been researching as the weather gets colder up here in OH is with Bio-Diesel (and somewhat Fossil Diesel) water can get in the line and cause freezing issues. Some use heaters, others upgrade and use better fuel filters with water extraction as well. I am thinking about getting rid of the OEM filter (I know it has that sensor on the end) or modifying it & changing to a better filter with water extraction. I know they have high-flow filters available with extraction as well and some filter down to 1-2 microns I believe?

Anyone know the "filtering" ability of our OEM filters?

If that would be a waste, possibly just adding water extraction and/or a fuel filter heater for the winter?

Anyone messed with this? I cant find much (custom) about anything Fuel Filter related......

Once upon a time the link in this post had a pdf with the 335d fuel filter specs. From my old post I know it had some water separating capability, but you can't "drain" any water that gets collected. I don't like that.

http://www.e90post.com/forums/showpo...0&postcount=12

Here's some info on how I integrated additional filtering/water separation capability that might be helpful.

http://www.e90post.com/forums/showthread.php?t=1344655
http://www.bimmerfest.com/forums/sho...d.php?t=461450

The OEM configuration has a heater that plugs into the input of the OEM filter. I doubt it's enough to keep high % blends of biodiesel warm enough in extreme cold weather to flow well through low um rated filters. However it is possible to add a bigger inline heater if desired. But I haven't had issues with winterized low % biodiesel blends in temps below 0F.

[Persian Whisperjet]

Originally Posted by Ohiodiesel

I have been running Bio-Diesel in my D. It burns cleaner and I make it myself.

You make it yourself? Just to clarify we're not talking about the stuff that starts out in the deep fryer, because that is a different animal.

[TDIwyse]

Originally Posted by Persian Whisperjet

You make it yourself? Just to clarify we're not talking about the stuff that starts out in the deep fryer, because that is a different animal.

I'm not encouraging anyone to do that, but ... I spend many years taking fryer grease from a local place and chemically processing it into biodiesel (methyl esters) for use in multiple engines. My 15 year old common rail Cummins has spent most of its miles running >B50 home brewed biodiesel. Although shortly before I got the 335d I stopped making my own. It's a lot of fussing around to do it right and I got tired of it after all those years.

[Ohiodiesel]

Originally Posted by TDIwyse

Once upon a time the link in this post had a pdf with the 335d fuel filter specs. From my old post I know it had some water separating capability, but you can't "drain" any water that gets collected. I don't like that.

http://www.e90post.com/forums/showpo...0&postcount=12

Here's some info on how I integrated additional filtering/water separation capability that might be helpful.

http://www.e90post.com/forums/showthread.php?t=1344655
http://www.bimmerfest.com/forums/sho...d.php?t=461450

The OEM configuration has a heater that plugs into the input of the OEM filter. I doubt it's enough to keep high % blends of biodiesel warm enough in extreme cold weather to flow well through low um rated filters. However it is possible to add a bigger inline heater if desired. But I haven't had issues with winterized low % biodiesel blends in temps below 0F.

I tried the OEM filter specs. link you posted...... but it just re-directs to the main page. I would be interested in the specs of the filter and voltages of that plug/heater that goes on the end of our filters. Also, tried the link for what you did to the fuel system and it seems to be broken as well....

[Ohiodiesel]

Originally Posted by Persian Whisperjet

You make it yourself? Just to clarify we're not talking about the stuff that starts out in the deep fryer, because that is a different animal.

Processed Veg. Oil into Bio-Diesel. Definitely not straight Veg. Oil though......

[TDIwyse]

Originally Posted by Ohiodiesel

I tried the OEM filter specs. link you posted...... but it just re-directs to the main page. I would be interested in the specs of the filter and voltages of that plug/heater that goes on the end of our filters. Also, tried the link for what you did to the fuel system and it seems to be broken as well....

Yes, that original link to the specs is no longer pointing to the pdf, which is why I mentioned "once upon a time". However, in one of the threads it was mentioned it had a 93% water separating capability. I also recall from the pdf that the um filtration was around 7um.

The other links work for me, some I'm not sure why you're having an issue. But here they are in text format so you can copy and paste into a browser.

"http://www.e90post.com/forums/showthread.php?t=1344655"
"http://www.bimmerfest.com/forums/showthread.php?t=461450"

Here is a reference to water separating at 93%

"http://www.e90post.com/forums/showpost.php?p=13251453&postcount=14"

And if you combine the stanadyne with oem then you are getting to a level that is pretty good:

"http://www.e90post.com/forums/showpost.php?p=13264019&postcount=18"

[Ohiodiesel]

Originally Posted by TDIwyse

Yes, that original link to the specs is no longer pointing to the pdf, which is why I mentioned "once upon a time". However, in one of the threads it was mentioned it had a 93% water separating capability. I also recall from the pdf that the um filtration was around 7um.

The other links work for me, some I'm not sure why you're having an issue. But here they are in text format so you can copy and paste into a browser.

"http://www.e90post.com/forums/showthread.php?t=1344655"
"http://www.bimmerfest.com/forums/showthread.php?t=461450"

Here is a reference to water separating at 93%

"http://www.e90post.com/forums/showpost.php?p=13251453&postcount=14"

And if you combine the stanadyne with oem then you are getting to a level that is pretty good:

"http://www.e90post.com/forums/showpost.php?p=13264019&postcount=18"

Sorry, I meant to say those loaded fine but on one of the posts you had posted a link to show what all you did with your fuel system on another post but the link was "not found".

[Ohiodiesel]

I did find some old Q & A info titled BMW Advanced Diesel Technology and another general overview - has some interesting comments and info

Here's the links

http://www.bmwusanews.com/newsrelease.do?id=4&mid=

https://energy.gov/sites/prod/files/...8_hiemesch.pdf