What is the big deal with running anything higher than B20? I am very curious about the MFG problems with anything higher than B20. What would happen to my truck if I did decide to run B99 or B100? My ride has 2100mi on the clock and would like to use bio-diesel, but no one around me sells anything but B99 or B100. I understand that I might have to replace my FF before the 10,000mi mark but other than that what else is there? I am very confused and determined to find out.....

 

Biggest thing I would worry about is IF there was a problem that was fuel system realted. Your dealer may be required by Chrysler to have a fuel sample taken and that may void the warranty. Not real likely, but like mythbusters say, plausible. Here is an excerpt from a TSB that pretty much sums it up.

- A maximum blend of 5% biodiesel (B5) is acceptable as long as the biodiesel mixture
meets ASTM specification D-975, D-975 - grade S-15, and ASTM D6751. A biodiesel fuel
blend that is higher than 5% is not acceptable without additional fuel processing because
these higher percentage biodiesel blends contain excess amounts of moisture which
exceed the water stripping capability of the on-engine final fuel filter. Should a higher
percentage biodiesel fuels be used an auxiliary water stripping filter will be required.
- A maximum blend of 20% biodiesel (B20) can be used by government, military, and
commercial fleets who equip their vehicle(s) with an optional water separator, and adhere
to the guidelines in the Department of Defense specification A-A-59693 (in addition to:
ASTM specification D-975, D-975 - grade S-15 and ASTM D6751)

 

I get that, but other than that there is no other reason not to run B99 or 100? Does it put extra wear on the LP or the CP3? Other than a unusual fuel problem b99 or 100 should be Ok to run????

 

I wouldn't hesitate using it accepting the possible warranty issues.. I think some say that it actually has more lubricating properties than #1 or #2. i think the biggest reason for not accepting it is the lack of testing and regulation on the blending.

 

Article in the new Diesel World says that Cummins just approved B20 for use in all their motors.

 

Ran it in a 6.9L Furd, cleaned the lines, tanks, and everything else inside the fuel system, AND ALL that crud went into the filter. What wasn't stopped there made it to the top of the injection pump, that little check valve thingy. After the first tank I had to stop every 50 miles or so to take off the fuel line, pull the check valve, use the little tool I made to clean it, put it back together, then on we went. PIA to say the least.

I tried it once in my 06, B100, went fine, no probs. But that was 1 time, in MY vehicle, can't say what would happen to you. Course, other than changing the fuel filter more often at first, probably not a whole lot would happen, IMO.


Interesting note, first time I bought BioD it was 50 to 60 cents cheaper per gallon than the regular stuff. Now it's about 30 to 40 cents more per gallon. Reminds me of a drug dealer from TV, first few samples are free, then it'll cost you!

 

i put b99 in my truck 2 or 3 times cause my buddy sell it and i was supporting his company, but i wrecked a couple of my injectors and left me
stuck on the road every time. ill never run it again its not worth it to me.
#2 with additive is what i use. Good luck if you run it maybe it will work great for you.....drake

 

Sounds to me like you just need to take the precautions and install the extra water seperators and fuel filters. If you do decide to run it, I would flush the fuel system more often just for piece of mind.

 

Mix it 50/50 with #2 diesel, and you'll have B50.