I've been running 10gal of Bio to a tank and have had no problems. I love the difference the Bio makes, less smoke and quieter engine. The Bio I run is made from 100% soybean oil. I love the stuff.

Sid

 

Where have you been getting your bio? I have only found 1 place in phx and it's about 35 miles from my house. I've been using 2stroke instead but would love to try bio if there were more places that sell it here.

 

I have been running B20 for about 6 months now without any problems. The mileage seems to be a little better and the truck has a better sound to it.

 

I ran about 10 tanks of bio B20, and the truck did sound a little smoother. However, fuel economy suffered by 1.0 - 1.5 mpg.

The truck ran slightly cooler with B20, and also produces slightly less power (although fueling can be turned up a little to compensate since EGT is down).

Smoke is lighter gray, rather than deep black.

I started getting an intermittant miss at idle and swapped back to regular ULSD with a good dose of Schaeffer's diesel treat.

It doesn't seem that there is enough conclusive evidence yet for me to risk running B20 all the time. I think B5 would be great to run (for lubricity purposes), while uses Schaeffer's for the other benefits.

I may have induced some problems by using the MP-8 to add some pressure to the mix. There are some very convincing papers out on polymerization of Biofuels when subjected to high pressures.

--Eric

 

Ive been runnin 50 % mix in my 05 HO. do you guys think this is to much. I havnt had any problems that i can tell exet what seems to be dirty injectors but guys not runnin bio have that. Seems to get better mialge with the mixture of bio and diesel compared to b100. I was worried about my injector pump. Does anyone know of any directly related problems with bio besides just rumors??

 

speaking of rumors.. are the ones about bio causing bacteria growth and holding on to water easier than #2 true??

 

I really dont have any bio diesel pumps around here yet I would have to get a tank hauled out to my house and have it fueled up... my question is about how much is the bio running a gal

 

i've never heard of better mpg's from bio. in fact, in most bio discussions, the loss of mpg's is almost always talked about as a common negative. better lubrication (especially with ulsd) and cheaper price are the two common plus'.

 

My 2007 dodge manual says approved up to 10% bio.

 

I have been running 100% for about two months with no ill effects. I add Power Service to each tank. My buddy has been running 100% for nearly two years. He has had no problems. He is very meticulous about filtering and testing the batch throughout the process. Like anything else, the ingredients make the difference.
As a side effect...His truck without a cat smell like Mickey D's at lunchtime. Mine with a cat smells better than DINO but not nearly as good as his.

 

my 2007 Dodge Diesel manual says 5% bio blend?

 

I try to run it whenever I can. No problems at all. My truck runs much smoother with it. Also I run it in many large diesels without any problems. I just can`t figure out why its so hard to find . You would think the gov`t would be pushing bio.

 

I just did the fuel filter how long would you go if you started running bio now? 5k

 

I talked to my fuel supplier today & asked him about bio. They are mixing 20% for on road & 10% for off road use.I asked him why stop at 20% & he said anything over that & you start having filter problems in older tanks. He also said with a new or clean tank he will put whatever mix you want.

 

One reason you don't want higher amounts of Bio is that our fuel filters can't strip out the water that Bio contains. Cummins has said that our stock fuel filters are only good for 5% Bio and if you use anything more then you need to add extra filtering to strip out the water.

Below is from Cummins about Bio:

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)