Dumb Question....bio Diesel?????????

[superdave]

I have a 2008 6. 7 with auto... ... . Can I burn 100% bio diesel: like cooking oil or vegetable oil??????? Saw a blurb on national tv news about dude replacing gas engines with diesels and burning 100% bio diesel and getting around 54 MPG. Anyone know anything about what the 6. 7 can handle????

 

[fox]

First of all, that much mileage is not possible with a full size truck. Low 20's will be about tops.

Now, the bio-desiel, someone will jump in and maybe give a link, but the common rail engines-like yours- has a lot of rail pressure and that pressure does something to the bio fuel that causes issues.

A cummins shop is a good source of info.

 

[JimB1]

Cooking oil/straight vegtable oil (SVO) is a bio-fuel feedstock that can be distilled into biodiesel (ASTM D 6751) a patented trade name product.



SVO's and WVO's (waste vegtable oil) have components, glycerins (soap) for one, that clearly show long term reliability problems.



Lots of available info, do the SEARCH here and other websites.

 

[JDiepstra]

Cummins approved your engine for 5% bio. I'd say go ahead and run 100% (only 20x the recommended amount) and just keep us posted on how its going!

 

[sag2]

One of the technicians we Elk hunt with told me today he has a 2007 Grand Cherokee 3. 0 diesel in the shop today that was running 100% bio. It needs $12,000 in repairs to get it running. The customer is trying to call around getting a better price. I don't think they realize the only place to get parts is Mercedes or Chrysler! I bet they read the owners manual on their next car.

 

[JDiepstra]

One of the technicians we Elk hunt with told me today he has a 2007 Grand Cherokee 3. 0 diesel in the shop today that was running 100% bio. It needs $12,000 in repairs to get it running. The customer is trying to call around getting a better price. I don't think they realize the only place to get parts is Mercedes or Chrysler! I bet they read the owners manual on their next car.

LOL, I love it when people have great money saving ideas like that. Kudos to the original poster for looking into the idea first!

 

[betterthanstock]

If you're gonna burn 100% WVO, buy an 80's mercedes. They have indirect injection at about 1500 psi, less than many pressure washers, so anything that burns will do in those. Replacement injectors run about $30-50.

 

[HBarlow]

Member Joe Donnelly, who holds a PhD in Chemistry, talked briefly during May Madness about the idea of burning high percentages of WVO or Bio. I didn't pay any attention to the details because I knew I was not going to burn more than 0% in my own truck but the point of Joe's comments was NO, it cannot be done. It would be very destructive to our engines. I remember that he said that either of the products would have to be refined, not filtered, with a process like an oil refinery uses to refine crude oil into diesel, gasoline, naptha, etc. in order to use it. I don't know anyone who has a refinery in his garage. Joe stated, if I remember correctly, that it would wash past piston rings leaving deposits on the rings and destroying the seal and causing major problems when it reached the crankcase because it doesn't mix with engine oil.



In summary, Joe said it cannot be done without experiencing the problem described by sag2 above.

 

[HBarlow]

Cummins approved your engine for 5% bio. I'd say go ahead and run 100% (only 20x the recommended amount) and just keep us posted on how its going!

Made me laugh!

 

[superdave]

FOX, the news story we saw on national TV was putting diesel engines in gas cars, not trucks. I will say one thing. The camera shots of the after installation sure as heck filled up the under hood space on whatever brand the car was. The really stupid thing was the up front cost.

 

[sam-eye-am]

What about bio at the pump?

Member Joe Donnelly, who holds a PhD in Chemistry, talked briefly during May Madness about the idea of burning high percentages of WVO or Bio. I didn't pay any attention to the details because I knew I was not going to burn more than 0% in my own truck but the point of Joe's comments was NO, it cannot be done. It would be very destructive to our engines. I remember that he said that either of the products would have to be refined, not filtered, with a process like an oil refinery uses to refine crude oil into diesel, gasoline, naptha, etc. in order to use it. I don't know anyone who has a refinery in his garage. Joe stated, if I remember correctly, that it would wash past piston rings leaving deposits on the rings and destroying the seal and causing major problems when it reached the crankcase because it doesn't mix with engine oil.



In summary, Joe said it cannot be done without experiencing the problem described by sag2 above.

Aren't the C&C (or otherwise "fleet") customers permitted to run up to B20 without voiding the warranty? Does anyone know if what is sold as B99 at most gas stations is stuff that actually goes through a refining process? I remember reading something a while back saying that there is an ASTM/SAE or some other type of standard for Bio-Diesel but that it isn't mandatory. I wonder if Bio-Diesel brewed according to that standard would avoid the problems you mentioned?

 

[grasmo]

Before the price of diesel shot up ... . putting a diesel/duramax in a 68 firebird was a cool idea ... . think of the power it would have ... . the price you pay for 500 gas hp is crazy... the price for a duramax w/ allison is still high but my goodness the thing would last forever and be very fast. but my car is a rare find 65k original 1 owner miles all original even have every svc. record from day 1 ..... too good of a car to do it to any way, but I did think about how cool it would be.

 

[JimB1]

Bio-Fuel feedstocks such as SVO and WVO (straight veg oil/waste veg oil) is not Bio-Diesel.



Bio-Diesel is a patented tradename product refined to the standard ASTM D 6751.



Bio-Fuel feedstocks such as SVO/WVO can be refined into Bio-Diesel.



Any commercial pump advertising Bio-Diesel has to be ASTM D 6751 fuel and are falsely representing a patented trade name product if it doesn't meet that standard.



Easy to labratory prove a fuel sample.

 

[superdave]

Maybe I am using the wrong terminology. The news show we saw on one of the networks was putting a diesel with a 5 speed automatic transmission in a car (do not remember what brand car) and burning USED vegetable oil obtained from restaurant's and such. It would be reasonable to assume they would filter out the impurities. One thing the TV story said was that the used veg oil burned hotter than diesel. I did not realize that. I had read elsewhere that the veg oil did not burn as hot as diesel. Well, anyway, we do not have any BIO at the pumps here in NE Texas, at least I have never seen any.

 

[JimB1]

The notion of a "free lunch" (restuarant WVO) sells just as well as using a gal that's "easy on the eyes" to advertise with.



Sure, there is some limited supply of WVO out there but fuel prices and demand are quickly absorbing that.



Vendors, advertisers, "news" article writers of anything related to the do-it-yourself type consumers (us) fuzz over the facts via loosly using terminology.



Take away free WVO and every one of the above falls flat on its face.



Due to market demands, growth rate of sizeable feedstock producing Bio-Fuel industries are here to stay and will provide a lot of home grown jobs that won't get "outsourced".



But the key to all this is producing new Bio-Fuel feedstocks, from a long list of high potential candidates, AND educating consumers with proper terminology.



Breadbox Bio-Fuel feedstocks; corn, soy, sugar, rice, wheat, have been and will be the quickest already existing "go to" feedstocks but demand and cost will quickly bring in a "next generation" of renewable energies/feedstocks.



Genetically modified (GM) high lipid content, designed for the purpose, plant and/or single cell (algae) candidates will eventaully become available.