b100 which duramx to buy - Chevy and GMC Duramax Diesel Forum
Alternative Fuels - Diesel - Additives - Lubricants Discussion of diesel, its various additives, oils, lubricants and alternative fuels IE: Bio-Diesel ect...

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post #1 of 13 (permalink) Old 01-14-2014, 08:29 AM Thread Starter
 
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b100 which duramx to buy

Searching this site forum, no luck finding topic for which engines are good to use b100? Which duramax engine/year is good to run b100. I realize the changing of fuel filters may be more often, but which engine is safe to run b100
I was thinking prior to 2007?
Thanks
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post #2 of 13 (permalink) Old 01-14-2014, 08:59 AM
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GM only allows b5 in everything but the LML which alows b20.

That being said I have experimented with biodiesel blends for awhile with my LB7 (2001-2004). The LB7 is already known for injector issues and they are a b#$%^h to change. But these lines of engines (mostly) have no pollution controls which is nice. The next generations 2004.5-2007 are LLY and LBZ which have much better injector design and are much easier to change when they do go bad and the only pollution controls are EGR and catalitic converter which will operate fine or can be easily disabled. 2007 to 2010? are LMM and they have the same injection as the LLY and LBZ but they use an exhaust stroke injection to regenerate the DPF this is bad mojo for the engine oil and unless you delete the DPF system b100 is not advisable. the 2011? to current are LMLs and have a separate injector in the exhaust to regenerate the DPF so b20 is safe and I would think would work ok with b100 but it might tax the DEF and Regen cycles a bit too much.

There are so many people with so many theories when it comes to biodiesel and almost without exception they are off base. the only real issue with bio is cold weather issues, and it tends to clean the fuel system so well that you go through filters for the first few 1000 miles, beyond that is is great stuff.

LB7 2004, CCSB. Straight pipe, K&N, AD100, EFI Live IdahoRob, Big Head WG, Edge CTS, Studs, Profab Horn, SPX Turboost 64mm IHI , Tinker with B100, WMO, WVO.

If fuel prices get any higher I am going to cut a whole in my floor and Fred Flintstone this Bitch!
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post #3 of 13 (permalink) Old 01-14-2014, 09:17 AM Thread Starter
 
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Thanks. I realize warranty issues, not worried. I own a 2006 jetta tdi, that I run on b100 (when I can find it!) Looking to sell my 87 toyota pick up and get something that will run on b100. I realize the fuel filter will be replaced often, at first. Fuel injectors are definitely a concern.
how about 1990's models?

Last edited by biod100; 01-14-2014 at 09:20 AM.
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post #4 of 13 (permalink) Old 01-14-2014, 09:34 AM
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The 6.5 GM diesels ( I have heard all of this, no first hand) but they use an optical fuel quality sensor that does not like different fuels. the older 6.2 will run on anything but they are complete non-turbocharged dogs.

If I were to get a true multi-fuel vehicle and I am some day, I would get a 2nd generation cummins 5.9L 12 valve with the "P" pump 1994ish to 1998.5ish (older ones work good too but these are the best). Proven to run on absolutly anything!

It looks like you are only buying b100 so many of the issues others have had (including me) have more to do with home brews.

I have used bio and other fuels in my dmax and I have a jeep liberty with the 2.8L diesel. These are both CRD diesel and running bio in them works but they are very touchy and the cost involved with injector failures can be quite high. but again this has more to do with home brew than store baught b100.

LB7 2004, CCSB. Straight pipe, K&N, AD100, EFI Live IdahoRob, Big Head WG, Edge CTS, Studs, Profab Horn, SPX Turboost 64mm IHI , Tinker with B100, WMO, WVO.

If fuel prices get any higher I am going to cut a whole in my floor and Fred Flintstone this Bitch!
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post #5 of 13 (permalink) Old 01-14-2014, 03:06 PM Thread Starter
 
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Thanks, yes, I will be purchasing b100. I travel too much to make it myself. I was all geared up to try making it, til it dawned on me that I really couldn't commit to picking up the used grease.
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post #6 of 13 (permalink) Old 01-14-2014, 03:38 PM
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You can run B100 in a LBZ just fine. You will loose some power. One of my good friends did it for around 80k miles, made his own fuel, no issues whatsoever. He filtere dit down to 1 micron before putting it in the tank. I would atleast get rid of the cat and EGR.
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post #7 of 13 (permalink) Old 01-14-2014, 03:43 PM
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IMO, make sure your filtration is in good shape and that you have good filters. Bio is a solvent, and may loosen up junk in your tank.

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post #8 of 13 (permalink) Old 01-14-2014, 05:29 PM
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LB7, LLY or LBZ should all love it. FWIW I haven't had injector problems on my LB7 since switching to B100...actually makes me leery of putting dino in the tank!

2003 GMC Sierra 2500HD 6.6L Duramax LB7
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post #9 of 13 (permalink) Old 01-14-2014, 06:11 PM
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My LLY LOVES B1. I lose a litle bit of power with B1. The sweet spot is between 50 and 100. Engine is sooooooooo quiet and cool on B1. Enjoy. Oh yeah, buy a bunch of filters when you first start the B1. I now run a fuel lab lift, Cat 2 micron and Nictane 1 micron and have zero issues.

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post #10 of 13 (permalink) Old 05-29-2015, 06:42 PM
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My untouched completely stock LBZ is running b100 with zero issues. It actually has been getting just a touch better MPGs and running quieter. I don't make it, I'm getting it from a reputable supplier in Western NC.
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