jhanananda
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![[*]](./images/onepoint9/default_icon.gif) posted on 3-9-2008 at 05:31 PM |
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Improved WVO Fuel Economy with blends
Hello blenders, while it is often stated on the various bio-fuels forums that MPG will drop along with power, making RUG no cheaper per mile than
using Kero or D2, or that it will even damage one’s engine; however, this has not been my experience. Instead I find my engine has more power with
RUG added to WVO, and I seem to get better fuel economy, and the engine starts just fine down to 38°F; however I have no accurate means of calculating
my fuel consumption at this time, because I have no meter on my transfer pump. And, if the reader were to examine the collection of testimonials in
support of RUG blending (link below), I am not the only person who has found more power, better fuel economy and better cold starting with a RUG
blend.
I have also read on bio-fuels forums about a French research project with vegetable oil fuels that found adding alcohol at about 10% to a vegetable
oil fuel stock, will improve fuel atomization and actually result in increased fuel economy, even though alcohol has fewer BTUs/unit volume than do
WVO or diesel, in spite of what many believe.
If there is more power, better fuel economy and better cold starting with a RUG and/or alcohol blended with WVO, even though alcohol and RUG have
fewer BTUs/unit volume, than WVO or diesel, then the question is why? I believe the thermodynamics of mixed fuel combustion answers this question.
While thick fuels, such as WVO and WMO, tend to retard ignition in a compression ignition engine, gasoline and alcohol tend to advance ignition in
such engines. Thus, with a skillful blend one could theoretically maximize combustion and thus end up with ideal fuel economy and reduced
emissions.
Additionally, in the case of cold starting, there are users of blends with regular unleaded gasoline (RUG/petrol) that claim that it acts as an
anti-freeze for WVO/WMO down to about -40°F/C. Although, at extremely low temperatures a block heater, and even a battery heater is likely to be
needed.
Sources:
"Gaydou, A.M., Menet, L., Ravelojaona, G., and Geneste, P. 1982. Vegetable energy sources in Madagascar: ethyl alcohol and oil seeds (French).
Oleagineux 37(3):135–141."
Improved WVO Fuel Economy with RUG, Acetone and Alcohol blends
http://groups.yahoo.com/group/veggie_fuel_blennders/message/64
http://www.vegetableoildiesel.co.uk/forum/viewthread.php?tid=8263
Improved fuel economy with Mixed fuels, Testimonials
http://groups.yahoo.com/group/veggie_fuel_blennders/message/82
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byways
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| posted on 3-9-2008 at 05:35 PM |
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"making RUG no cheaper per mile than using Kero or D2"
PLEASE NOT USING KEROSENE IN THE UK IS ILLEGAL ON HIGHWAY.
If you:
* misuse or supply oil (other than fully duty paid fuel) for use as fuel in a road vehicle
* misuse or supply rebated kerosene for use to propel an excepted vehicle or as fuel in an engine (other than to provide heating) or
* mix any rebated or duty free oil with any oil on which no rebate has been allowed.
A penalty of £250 may be imposed for each offence and the duty rebate recovered.
In all cases, your vehicle (or engine) may be seized and forfeited.
The penalty and duty rebate may be secured as part of the restoration amount for the seized vehicle or by the issue of a fixed civil penalty and
Notice of Assessment.
If your conduct involves dishonesty, a penalty of up to 100% of the duty evaded may be imposed.
[Edited on 3-9-2008 by byways]
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lew247
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| posted on 3-9-2008 at 05:53 PM |
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byways, the topic was added to save having many posts being added un-nessessarily as was being done yesterday.
There was no clear topic to discuss the blending/mixing options so hopefully this area can be kept for those kind of things
I've also added a legal warning at the top about the risks of using illegal fuels, feel free to add to it if you want, or if you can suggest anything
that has been missed?
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jhanananda
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| posted on 3-9-2008 at 08:03 PM |
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Experimental fuel economy with blends from Navitron's Forums
Experimental fuel economy with blends from Navitron's Forums Move to this thread. Thanks to byways
http://www.navitron.org.uk/forum/index.php/topic,2760.msg24308.html#msg24308
Ivan
Administrator
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Re: 'catalytic effect' of Biodiesel
« Reply #3 on: February 28, 2008, 01:05:08 AM »
Common Rail Diesel Clio, At 70mph:
On diesel - 63mpg
On 80% diesel, 20% biodiesel - 69mpg
On 80% biodiesel 20% veg oil - 60mph
On 100% biodiesel - 60mpg
Energy content –
biodiesel 38MJ/kg
veg oil 37MG/kg
diesel 45.6MJ/kg
All readings taken on digital mpg meter (which over-reads by about 10%), averaged over at least 200miles.
The lower readings for biodiesel and veg oil are due to lower energy content of fuel. The higher reading for 20% biodiesel, 80% veg oil is apparent
demonstration of the catalytic effect - anyone else care to test this? or test it with 20% veg oil 80% diesel mixture?
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lew247
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| posted on 3-9-2008 at 09:17 PM |
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Cetane enhancer
I can personally recomend this one because I wont fill the tank without it, no matter what I'm using be it blended oil, biodiesel or svo/wvo, its one
of the few products that does exactly what it says on the label
http://www.chemiphase.co.uk/index.php?main_page=index&cPath=58_65
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jhanananda
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 posted on 4-12-2008 at 03:58 AM |
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testimonials
chipmonster
http://biodiesel.infopop.cc/eve/forums/a/tpc/f/9751014871/m/1701047162?r=9711...
posted on 17-6-2008 at 11:32 AM
mpg increase with petrol
I normally get 50 - 55 mpg to the gallon on the trip computer on my 1999 Passat using DINO. Since using BD (100 %) this dropped to about 42 - 45
mpg.
However, I had about half a tank of BD left in the tank. I put in about a litre of petrol into the tank over a week ago.
Since then, the MPG has gone back up to 53 -55 mpg to the gallon with BD, very pleased with the result.
I am thinking of putting petrol in the tank every few tanks, is this recommended?
Tim c cook
Posted 23 August 2008 11:54 PM
RUG in my cold blends -- I can't say I have seen any differance in how the blends run with or without the RUG, no higher exhaust temps, no difference
in smoke, no loss of milage or power, etc. I use it because it is a cheaper and thinner solvent than diesel or kerosine so I can run a bit higher
percentage of veg in the blend and still have everything thin enough to flow through the unheated fuel system.
John Galt
Location: Possum Lake, Northern Canukland
PostPosted: Sat May 31, 2008 7:34 pm
The common solvents available for mixing with VO are
(a) D2
(b) D1/KErosene/JetA/Stove Oil
(c) RUG/NAptha/JetB
in order of increasing volatility.
I suspect that a mix of VO with a percent of type (b) and a percent of type (c) solvent will come close to the burn characteristics of D2 type (a).
The specific percents will vary with vehicle fuel systems, different operating temperatures and different types of VO.
I'm experimenting with mixes of D2+VO+jetB+D1 in an '89 3.4L TDI.
curently using 60% D2 20%VO 10%D1 10%JB
operating temperature above freezing 5°C to 25°C
Good success so far over 2 years 30k with various VO mixes, no smoke on cold start, minimum smoke on heavy acceleration [less than with D2], no
noticeable loss of power or MPG, emissions tests very clean.
http://www.burnveg.com/forum/viewtopic.php?t=267
David
Location: Sydney Australia
PostPosted: Sat May 31, 2008 8:10 pm
Blending with RUG is far from all bad.
Having used RUG and many other blends (pretty much all I could get my hands on) I have to say it may not be the optimal blending agent engine wise but
for many vehicles, it is certainly a very viable blending agent and has several things in its favour.
RUG is easier to get that some other blending agents like Kero, B100 or turps in many places.
It is the thinnest of the blending agents so although the percentage you can use is limited, its thinning power is the best.
RUG is cheaper here in OZ than anything else you can blend with. I believe Diesel may be cheaper in many places but thanks to taxes, here it is about
15C/L more exy than unleaded ATM.
I have found RUG to be very effective in helping with cold weather starts. When using any of the other blending agents, I have found the addition of
5% RUG makes starting better in my old car.
In my own tests, RUG is the most effective blending agent at lowering the gel point of WVO and as a friend has recently tested and found, it also
lowers the gel point of Bio very effectively as well. As mentioned above, the percentages it can be used at vary with a number of factors but having
done testing on my own vehicle and discovering what works best, I would use it at with complete and utter confidence.
I have found RUG to work very well as a blending agent and honestly think that there is a lot of ill founded misinformation about it that has become
almost " Folk law" these days.
http://www.burnveg.com/forum/viewtopic.php?t=267
td2dv
PostPosted: Tue Aug 26, 2008 10:57 am
Post subject: Single Tank Systems and Blending
My hand operated transfer pump moves 1 us gallon per 10 revolutions. I get 30 mpg on D2 and 32 on WVO/10% rug. I chose RUG for blending because of
it's availability and price. D2 may work as well but I don't think it thins as much. I filter cold to trap the thick stuff. The RUG dissolves the
rest. I'm curious how cold this will work. Here is my viscosity test, again.
http://www.youtube.com/watch?v=g4hgvSe3c2I
http://www.youtube.com/watch?v=RiGdk2VSglk&NR=1
The injection pump determines timing. I think the RUG helps propel the flame front and increases the efficiency of the combustion event. In addition
to my gas milage improving my operating temperature went up to the extent I had to take out the winter thermostat (88ºc) and put the summer one (80ºc)
back in.
_________________
Benz 240-D
Minneapolis
WVO/RUG (10%) 5 mo/yr
http://www.burnveg.com/forum/viewtopic.php?t=267&postdays=0&postorder...
[Edited on 3-12-2008 by jhanananda]
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PNT
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| posted on 15-4-2009 at 10:14 PM |
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wth lol can someone translate the above post into english lolol
I have just started thinning my filtered wvo with petrol and my mpg has dropped through the floor from a high of 46 round town its now something like
30-32!!!!!! how can I get my mpg back up to something like before outherwise Ill go back to running my BMW on petrol as the mpg was the same as this
diesel car ps car in good condition new oil/filter/fuel filter tyres and alignement so whats up?
many thanks paul k. 
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Bottleveg
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| posted on 16-4-2009 at 12:10 AM |
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| Quote: | Originally posted by PNT
wth lol can someone translate the above post into english lolol
I have just started thinning my filtered wvo with petrol and my mpg has dropped through the floor from a high of 46 round town its now something like
30-32!!!!!! how can I get my mpg back up to something like before
many thanks paul k. |
Stop thinning your wvo with petrol would help.
(Mark) 1998 Ford Escort 1.8TD.2nd Lucas pump. Twin tank. 100% UVO. Now sold.
1997 Astra 1.7TD Isuzu. 100% UVO. Dog rides shotgun. 1999 Merc Sprinter 310 2.9Di Twin tank 100% UVO. Dog needs a lift to get in, and ride shotgun.
WMO central heating. Lister 8/1 SOM to be run on WMO.
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oojimmyflip
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| posted on 7-9-2009 at 11:47 PM |
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there are results of mixing diesel with bio diesel of 69 mpg yet people on other forums that specalise in citroens do not beleive that I can get 70mpg
on a 50/50 mix of veg oil and dino diesel ata constant 60mph, this measurement was recorded over a continuous journey of 180 miles.
not bad for a citroen xantia 1.9 Turbo estate is it.
getting the mix right is crucial to the economny returned.
when i noticed that I was getting less milage on dino diesel i asked a friend of a friend who works for shell, why i was getting less milage per tank
of eleven gallons of dino that say five years ago, the old milage used to be around 500 miles a tank full of dino diesel nowm I am lucky if I get 230
miles per tank full.
his reply was that at least a third of the tanker before filling at the fuel depot was full of solvent detergents, which they claim keeps your engine
cleaner and makes fuel better for the enviroment, it is also a good way for the garages to strech diesel supplies to their limit making maximum profit
for their investment. we never get the chance to see our fuel before it goes into our cars it travels up a nozzel and straight into our tanks, we
never question exactly what the fuel contains because we dont actually care enough or bother to ask.
people buy cars costing 20 or 30 grand every day and never actualy stop to think what is being pumpd into the tank of their pride and joy, we are all
in to much of a hurry to go anywhere instead of stopping and asking about it, the other half of the problem is would the oil companies actually tell
us the truth even if we did ask? he did not seem to think so and neither do I.
regards Nigel.
if quitters never win & winners never cheat, then who's the idiot who said
" quit whlist your ahead"?
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