Getting 80gal tank
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Tuned
Joined: Oct 2015
Posts: 262
Likes: 0
From: Roswell
Getting 80gal tank
My truck has been modified to burn straight vegetable oil. Specifically used fryer oil from restaurants that many of us can get 'free'.
In a nutshell, the WVO (waste vegetable oil) is more viscous than diesel at room temp. When heated to about 160*F, WVO is about the same viscosity as diesel. I have a separate, redundant fuel system for WVO that uses coolant to heat the fuel. This includes a 2nd tank with heated fuel pick-up, heated fuel lines, 2nd pump/fuel press regulator, heated fuel filter, etc.
We start on diesel and switch to WVO after the engine warms up. Then, switch back to diesel and 'purge' all of the WVO from the engine before shutting the truck down.
Same power, mpg, etc as diesel. My truck has 230k on the high cholesterol diet and I have personally done dozens of conversions on 7.3/6.0's that cumulatively have way over a million veggie smile miles.
In a nutshell, the WVO (waste vegetable oil) is more viscous than diesel at room temp. When heated to about 160*F, WVO is about the same viscosity as diesel. I have a separate, redundant fuel system for WVO that uses coolant to heat the fuel. This includes a 2nd tank with heated fuel pick-up, heated fuel lines, 2nd pump/fuel press regulator, heated fuel filter, etc.
We start on diesel and switch to WVO after the engine warms up. Then, switch back to diesel and 'purge' all of the WVO from the engine before shutting the truck down.
Same power, mpg, etc as diesel. My truck has 230k on the high cholesterol diet and I have personally done dozens of conversions on 7.3/6.0's that cumulatively have way over a million veggie smile miles.
Hotshot
Joined: Jul 2008
Posts: 12,782
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From: N.GA Mountains
We've gone on some epic road trips for under $100/week.
Fleet Mechanic
Joined: Nov 2005
Posts: 1,508
Likes: 87
From: North Carolina, Raleigh
so current diesel in my area, raleigh nc, is 2.35 to 2.65 gallon and figuring 18 MPG for 25K miles come out to about $3500 for the deal. But it seem you still need a tank for diesel to start etc..
that sounds low to me, but how low???
that sounds low to me, but how low???
Hotshot
Joined: Dec 2012
Posts: 11,271
Likes: 1,654
From: Las Cruces New Mexico
Is there a way you can fit another OEM fuel tank under the truck not sure what cab/bed combo you have but on my obs, granted they came with two fuel tanks, I installed a cab and chassis 38 gallon tank from an 07 f350 where the old one used to be and now I have a total fuel capacity of almost 60 gallons but in order to do that you will need to adapt the obs fuel tank selector and switch for it to work.
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
The stock diesel tank and the entire factory fuel system remain intact. The only modification is the addition of check valves between the factory filter and the heads. I actually replace the skinny, kinked up steel fuel lines from filter to heads with 3/8" ptfe-lined SS braided hoses with JIC ends. In fact, I strive to make everything about my conversions is OEM or better quality. After more than 10yrs attempting to 'perfect' it, I may finally be getting close!! Lol.
For example, I use an F650 dash panel for VO system switches and fuel pressure/fuel level gauges. People who don't know these trucks often say they thought the VO system was STOCK. Even mechanics who work on my customers trucks often comment how clean they are. I go to great lengths to make sure what I do doesn't interfere with normal maintenance or even major repairs.
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
I started to link a couple VO system install threads I've posted down in the alt fuels section, but since PHOTOBUCKET SUCKS - I'm not going to bother... Want me to start a thread up here debunking the myths about VO?
Fleet Mechanic
Joined: Jul 2003
Posts: 1,614
Likes: 22
From: Springfield, PA
Actually, you might do some business just putting together a PTFE 3/8" SS fuel line kit as you mentioned earlier. Sounds like a really nice upgrade from OEM once they finally leak. And with the new fittings, it's a serviceable connection.
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Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
You can remove the guts from the CV's very easily for use on a non-veggie truck.
Post Fiend
Joined: Mar 2015
Posts: 5,277
Likes: 32
From: Blairsville, Pennsylvania
I see you are using the "mobile" site, I'm using laptop. I'll give it a few mins, might just have been lots of clicks after you posted the link
I'd really like to replace the line from the bowl to the heads, with appropriate fittings.
I'd really like to replace the line from the bowl to the heads, with appropriate fittings.
Fleet Mechanic
Joined: Jul 2003
Posts: 1,614
Likes: 22
From: Springfield, PA
VeggieGarage. Nice. Hate to say it, but the first thought that popped into my mind when I saw it was Sesame Street. Too many weekends with the grandson! 
It didn't work for me using the new Win10 Edge browser (which has been having lots of trouble the past few months loading many websites correctly), but loads fine using Chrome or Firefox.
It didn't work for me using the new Win10 Edge browser (which has been having lots of trouble the past few months loading many websites correctly), but loads fine using Chrome or Firefox.
