Another biodiesel question...

[rascal]

I know Fords line on biodiesel in the 6.7 "Nothing more than B20 or engine / DPF damage could result".

Why when previous Fords (7.3 & 6.0. no experience with 6.4) ran B100 without issue why would they make it so that only B20 could be run in the new Powerstroke incarnation? Seems like we are going the wrong way here.

Has anyone here heard of anyone trying anything greater than B20 in their 6.7? I am curious if anyone who has done the DPF/EGR/DEF delete has tried this. I am guessing the "potential issues" has to do with all the new emissions junk.

Don't get me wrong; I am all for a cleaner burning truck. However, lets not hinder the trucks and have them get worse mileage than they are capable of by putting all this emissions junk on the trucks. Lets change the fuel. There are huge advancements in cleaner fuels just around the corner but there are plenty of them here now!

I like how the government forces the automakers to change and not do anything to the big oil companies! Sorry, got on my soap box for a minute there.

Rascal

[67powerstroke]

Its because the NOx level in biodiesel above b20 is to high for the EPA to allow them to say it ok. Also b100 quality could be a problem on rare occasions and ford doesn't want the bill for repairs. I'm sure these trucks would run fine on quality B100. Might use more urea(def). As for the DPF B100 is way better then petrol diesel. It has less PM and buns off 100c lower in temp. So the DPF will last longer and regen less.
I must say I have not and don't plan on running higher than B20 in my rig anytime soon. I do run B20 religiously though.

[rascal]

Good points 67. I have read some information that said that anything greater than B20 will not ignite during a regen process therefore clogging the DPF/exhaust.

I love my 6.7 but I guess I just miss my other truck that I would run B100 in all the time without issue. This is my first truck with all this new emissions stuff on it. Heck, I made my own fuel most of the time and never had an issue. I know for a fact that fuel made from vegetable oil is a lot cleaner than petro based fuel (as you mentioned below).

Just around the corner is biodiesel/fuel that is made from algae and it burns so much cleaner than petro. I hope that day comes sooner than later.

Thanks,
MG

[67powerstroke]

You might have received bad information about biodiesel and it not igniting during regen. Biodiesel has a higher cetane or CN rating the #2 so it should ignite faster and at a lower temp.

Ignition quality tester

Another reliable and more precise method of measuring the cetane number of diesel fuel is the Ignition Quality Tester (IQTTM). This instrument applies a simpler, more robust approach to CN measurement than the CFR. Fuel is injected into a constant volume combustion chamber in which the ambient temperature is approximately 575°C(1067*F). The fuel combusts, and the high rate of pressure change within the chamber defines the start of combustion. The ignition delay of the fuel can then be calculated as the time difference between the start of fuel injection and the start of combustion. The fuel's derived cetane number can then be calculated using an empirical inverse relationship to ignition delay.

Hope that helps. I will prob start running B100 once I'm out of warranty.

[rascal]

Cool, thanks for the info!

How many more miles do you have till your out of warranty?

I only have 98,193 miles to go!

[67powerstroke]

Haha!!!! Yeah I have about 93,000 miles to go... Who knows if I can wait that long. If fuel stays expensive I might start making my own. Haha