B20 question

Reply Subscribe

Thread Tools

Search this Thread

Oct 10, 2007 | 06:12 PM

#16

F250_

Hotshot

Joined: Nov 2006

Posts: 11,288

Likes: 269

From: North of Greenville

Thanks, bigred... If I can talk to the station owner, I'll check it out with him. I know that none of the "cashiers" will probably even understand the question.

UPDATE... after my trip today, i'm still experiencing the surging, and that is with having traveled over 90 miles of rough-and-hilly-and-very curvy country roads that generated lots of slosh potentail in the tank. I'm getting a lot closer to planning on dropping the tank.

Oct 11, 2007 | 04:38 PM

#17

bigredtruckmi

Lead Driver

Joined: Jan 2005

Posts: 7,782

Likes: 221

From: Huntington Indiana

Surging could be fuel filters are getting plugged and need to be changed. These engines are very touchy in regards to fuel pressure and flow.

Oct 11, 2007 | 05:13 PM

#18

Phydeaux88

Posting Guru

Joined: Dec 2003

Posts: 1,570

Likes: 0

From: South Texas Coast

There are other somewhat more obscure components that could be in play such as the barometric pressure sensor

Oct 11, 2007 | 07:18 PM

#19

F250_

Hotshot

Joined: Nov 2006

Posts: 11,288

Likes: 269

From: North of Greenville

Big Red.. already done that once. Ready to do it again this weekend, but now things are beginning to run a little better.

Phydeaux... do tell more, please? What barometric pressure sensor? This is a new one for me.

Oct 15, 2007 | 10:06 AM

#20

F250_

Hotshot

Joined: Nov 2006

Posts: 11,288

Likes: 269

From: North of Greenville

Well, I've filled up again with 26 gallons of B20, did not drop the tank to clean it out, and everything is running great! I guess I really did finally "burn up" all the gunk that the B20 was cleaning out of my system. The weekend got sort of wierd, so I never did end up checking my fuel pressure again. Will do that in a couple of days and make one last filter element change if I really need to.

Still waiting for more details from you, Phydeaux.

Oct 17, 2007 | 01:11 PM

#21

MikeSDK

Elder User

Joined: Feb 2006

Posts: 547

Likes: 0

From: Tennessee

I have been running B20 exclusively for about 5 months. I've changed my fuel filter once, and will do it again with the next oil change. I've had no issues whatsoever.

F250_ , please keep an eye on your pyrometer as you make the change-over and post what you find. I am realizing a net drop in EGTs of about 50 -100 degrees across the RPM range since I made the change to B20.

Coupled with the 5' exhaust, I have difficulty getting EGTs to exceed 900*,
on B20, and my temps are normal at idle, etc. so I'm confident the gauge is working properly. Its not a bad problem to have, I'm just suggesting to eyeball the gauge and update any similar findings you experience.

Oct 17, 2007 | 09:32 PM

#22

F250_

Hotshot

Joined: Nov 2006

Posts: 11,288

Likes: 269

From: North of Greenville

I would love to be able to report pyro numbers, but I'm not running any extra gauges yet. I have an eletric fuel pressure gauge I'm going to install soon, and more will follow that, but the only gauges I have right now are the stock "stupid" gauges. Maybe when I get all gauged up I can do what's called a "reverse" trial by switching back to full dino for a month or so.

What you're observing in relation to pyro temp is consistent with two things....
1) what I've heard from others who have switched, and
2) the fact that bioD has a lower Btu value than pure dinoD.

Oct 17, 2007 | 09:59 PM

#23

dakotajeep

Laughing Gas

Joined: Aug 2007

Posts: 1,132

Likes: 0

From: Baldwin, ND

I am thinking about running the BioD in my 7.3 idi over the next few weeks but I am not sure if my old truck will take that kind of cleaning....I am thinking of running crude peanut oil also....any suggestions besides change the filter???

No BioD in my area so I have to wait to get to Bham area to get some....or over north of Eufala....that sucks!!!! I do have peanut oil available....

Last edited by dakotajeep; Oct 17, 2007 at 10:03 PM.