Dodge Cummins great for VO!

For discussing the modifications needed for diesel vehicles to run with 2 tank veggie oil conversions.

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Postby canolafunola » Thu Mar 20, 2008 10:09 am

Thanks! I verified that with a local injection shop. I'll scratch the gravity feed idea and use the mech lift pump for both fuels.
93 Gulfstream RV w Cummins 5.9 diesel pusher
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Message to Sunwizard or others about Dodge Cummins Trucks

Postby gandjwhite » Fri Apr 04, 2008 5:44 pm

Hey Sunwizard...

I saw your post about the conversion of your 95 Dodge and I really wanted to talk to you about it. I've been seriously considering the same type of thing myself, but I've been very reluctant due to my lack of knowledge in regard to trucks and car repair.

I've been researching for awhile now and I'm pretty much convinced that the Dodge Cummins engine is the best with the GMC Duramax coming in second (at least that seems to be the majority consensus).

A concern I have is I've heard a lot of bad things about other Dodge parts, particularly the transmission concerns me. Many would recommend the Duramax because of the GMC Allison Transmission. However, it seems that others say that the 47RE or 48RE Transmission in the Dodge is also sound.

I'm just wondering if you did research on these things prior to getting your 95 Dodge. Which transmission did you get? Any concerns with that?

Would you recommend I go with a 95 as well? Or are any of the 94 to 98.5 Dodges the same? I guess any info. you could give me would be great.

Now about the conversion. If I end up with one of these 1st generation Dodges, I may be interested in making the same conversion as you did since your post seems pretty convincing that it is a more reliable system and I like the "cheaper" part too. How much did you spend for the conversion? If I were to go that route could you help me figure out where to locate parts?

It also looked to me like your tank was rather small. I would like to get at least a 40 gallon tank. Would you recommend that?

I plan to use my truck to make runs yearly to Belize where I will spend three months each year. I also plan to spend the summers in the Eastern part of Wyoming. And then part of the fall and winter in the SW U.S. So, mainly warm climates. In fact, I couldn't foresee me using the truck in temps below 80 degrees. Would that cause you to change anything in the system you've developed? Would there be any heating parts that could be removed as a result?

Do you plan to sell your truck? Just thought I'd ask.

Thanks, Hope to hear back from you...

Justin White
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Re: Message to Sunwizard or others about Dodge Cummins Truck

Postby SunWizard » Fri Apr 04, 2008 6:11 pm

gandjwhite wrote:Hey Sunwizard...
I've been researching for awhile now and I'm pretty much convinced that the Dodge Cummins engine is the best with the GMC Duramax coming in second (at least that seems to be the majority consensus).

Many would disagree, and say the Ford powerstroke comes in second. They are all good, but few duramaxes have reported running VO so its hard to say with them.
gandjwhite wrote:A concern I have is I've heard a lot of bad things about other Dodge parts, particularly the transmission concerns me. Many would recommend the Duramax because of the GMC Allison Transmission. However, it seems that others say that the 47RE or 48RE Transmission in the Dodge is also sound.

I'm just wondering if you did research on these things prior to getting your 95 Dodge. Which transmission did you get? Any concerns with that?

Yes I did lots of research, I got the auto. The MPG is the same above 35mph. If you study it, the life of the autos is very long (>200k), its that the Cummins lasts so much longer (>500k) than all the other brands that it becomes noticable. The majority of people with earlier problems with the autos did high power mods, or overheated them which can cause trouble with any trans. The cost and # of miles before rebuilds is very similar between autos and 5 speeds if you study it.
gandjwhite wrote:Would you recommend I go with a 95 as well? Or are any of the 94 to 98.5 Dodges the same? I guess any info. you could give me would be great.

The later ones in that range are slightly better due to more power. Get any of them, they are all so much better than other brands its little difference.
gandjwhite wrote:Now about the conversion. If I end up with one of these 1st generation Dodges, I may be interested in making the same conversion as you did since your post seems pretty convincing that it is a more reliable system and I like the "cheaper" part too. How much did you spend for the conversion? If I were to go that route could you help me figure out where to locate parts?

I spend $500 total, mostly on the tank. There are links to all the parts vendors you need in this forum, see this thread:http://www.burnveg.com/forum/viewtopic.php?t=110
gandjwhite wrote:It also looked to me like your tank was rather small. I would like to get at least a 40 gallon tank. Would you recommend that?

Yes if you mainly do long trips, I went small since I carry my popup camper and large 4x8 loads often so wanted the bed space. I carry 3- 35 gallon barrels of VO for long trips.
gandjwhite wrote:I plan to use my truck to make runs yearly to Belize where I will spend three months each year. I also plan to spend the summers in the Eastern part of Wyoming. And then part of the fall and winter in the SW U.S. So, mainly warm climates. In fact, I couldn't foresee me using the truck in temps below 80 degrees. Would that cause you to change anything in the system you've developed? Would there be any heating parts that could be removed as a result?

Sounds like fun, I like Belize, and Mexico from Tulum down to Belize. No I would keep it the same. Its been flawless in any climate.
gandjwhite wrote:Do you plan to sell your truck? Just thought I'd ask.

No way, its got everything I want and they are getting harder to find!
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
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Postby gandjwhite » Sat Apr 05, 2008 9:06 pm

Awesome reply! Thanks alot. I think I'm pretty much convinced now that you've given me some confidence in the transmissions. I'm looking for an automatic as well. Thanks again... Good info.!
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