You can definitely run biodiesel, but running WVO would probably not be worth it. Especially if it does have the common rail injection. That is not to say that it is not possible, but again I am just saying that it is probably not worth it. Go for biodiesel, you can run that in any diesel you want as long as it has viton (or something similar) fuel hoses, with no other conversion needed.

Just my opinion.

Matt

I mean that the common rail can handle the biodiesel, but not the VO as easily. This, I believe, is because of the viscosity of VO. Biodiesel has a very similar viscosity to diesel, which is why it does not have to be heated for use in a diesel engine. Even with heating the VO it will never get to the same viscosity of petro-diesel, although it does get reasonably close. Generally common rail is a much more advance fuel injection system compared to the inline pumps on older diesels, and thus making it less tolerant to higher viscosity fuels.

I did some research prior to purchasing an '03 dodge ram with the same engine as your '04. All indications from experienced people and installers is that these engines convert very well. It was the older fuel delivery system in the 98.5 to 2002 dodge rams which had many problems with the lift pump (with regular diesel and bio). These year trucks are not recomended for bio-diesel or SVO or WVO. I own a couple restaurants and have full intentions of converting my truck a.s.a.p. and firltering my fryer oil and burnning it in my dodge. Good Luck! Dan

I have a 2004 dodge 3500 that I have been running on svo since Aug. 2006 about 17,000 miles on svo I have no problems with this and it runs great. You should check your lift pump all 2003 and half of the 2004 had the lift pump mounted on the fuel filter under hood. Go to a dealer and they will change this to the diesel tank at no charge (recall).I had mine changed and the svo does not run threw the stock lift pump.The kit has it own external pump for the svo kit so you dont need it in line with the svo.I WISH WOULD HAVE DONE THIS CONVERSION SEVERAL YEARS AGO. YOU WILL LOVE IT THE KEY IS CLEAN THE OIL THREW A GOOD FILTRATION SYSTEM THEN PUMP IT IN YOUR TANK THIS WILL KEEP YOU FROM CHANGING THE ONBOARD FILTERS AS OFTEN.

I'm running into the same problem. These guys are too busy to convert my '03 Ram 2500. Frybrid was supposed to come out with a new system designed speceifically for '03 and new rams a month agao. Still not availible and proably a month long wait when it is availible. Dan

I just bought an 04 Dodge 2500 and am working on (reasearching) conversion for WVO. I talked to the guys at greasecar and they just finished a kit for the new trucks, thye are just working on the insturction manuel and it should be out in the next couple of weeks. What I was told from one of their installers is that the fuel line needs to be bigger than what is being used currently and should be at least 3/8" instead of the standard 1/4". I have not started working on my truck yet though. I'm looking at parting it all out and getting a custom tank made. Any suggestions or advice from someone who has "been there, done that" to the same truk?
Thanks.

you guys should check out www.roverhybrids.com. They have the best systems for dodge trucks. they also have the individual components for those that want to piece together their own system