Anyone using WMO?? - Page 3 - PeachParts Mercedes-Benz Forum

Mojool · #31 07-17-2007, 11:55 AM

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Guys, if you want to run WVO, used oil, or whatever, in your engine to save a few dollars, have a ball; it's your engine and your money. Just don't try to tell the rest of us that it's good for the engine, at best you haven't done any significant damage so far. I would recommend using commercial BD that meets the current MB recommendations and appropriate specs (currently B5, I believe), beyond that you are on your own.

i hear you craig, but has enough testing been done to actually say that WVO (filtered, dewatered, etc.) is bad for a diesel motor? if so, please show me where. since i'm relatively new to all this i'd like some more information, if you please (i had a hard time finding anything in google due to my noob search parameters).

Quote:

Originally Posted by ForcedInduction

Mine uses Diesel #1/2, what the manual calls for.

I think he just meant that the diesel today is of low sulfur type, and when the Benzes were made back in the day they weren't designed to run on this low sulfur fuel...?

of course, i don't know jack ***** about methanol/water injection so i won't say anything about it. all i know is that we've been using it since ww2 and today it's used to make ***** go faster. isn't methanol supposed to be a little bit corrosive?

found the thread...edit

i didn't mean to cause such a commotion, but i do like the debate. i gotz to get mah learn on.

#32 07-17-2007, 12:20 PM

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Originally Posted by Mojool

i hear you craig, but has enough testing been done to actually say that WVO (filtered, dewatered, etc.) is bad for a diesel motor? if so, please show me where. since i'm relatively new to all this i'd like some more information, if you please (i had a hard time finding anything in google due to my noob search parameters).

I honestly don't know what formal testing has been done. I've never looked into it because I have no interest in burning this stuff. I wouldn't bother messing with WVO even if someone could prove it was completely harmless, it's just not worth my time.

However, my main concern would be quality control; how would you determine what, if any, contaminates are in each batch? What process would you use to ensure that there are not dissolved sugars and/or salts in the oil (these will not filter out)? Are you just going to trust the WVO supplier, that seems like a risk? How do you control the viscosity of the oil (heat, dilution)? Even if you can find testing results, how do you determine if the test oil is similar enough to your oil to be meaningful. Too many questions for me.

I'm curious why you are interested. If you are trying to save money, you will have to decide how much effort you want to expend and how much risk you are willing to accept. If you are doing it for environmental/political reasons, why not just buy commercial bio-diesel?

Mojool · #33 07-17-2007, 12:32 PM

just doing it as a DIY hobby thing. the WVO parts have already paid for themselves many times over in me not having to buy 3$ gallon dino diesel.
i'm approaching paying my car off with the savings (1900$+routine upkeep stuff like tie rods, shocks, control arm bushings, the good stuff, you know), but i do understand that there are risks. perfectly good statement about the quality control aspects of the oil. and you're right, i DON"T know exactly what's in there (besides no water and filtered down to 5 microns). the salt/sugars go thru the filtering media...but all my sources are from indian restaurants and fine dining places that either don't abuse/burn the oil, or cook meat in them (a few places don't cook any in them/fondue)...so aside from my picky self in trying to source the stuff...i don't know...i don't think anyone does as it's relatively uncharted stuff we're talking about here....

political...well sure...i could buy the BD (and probably should to clean up my stuff a little from time to time). will need to get all viton for that though...another project. i won't go into politics cos we all know that's like talking about religion (or lack thereof)...

so with all this stuff about wvo and contamination, what are your opinions on svo? you can buy that stuff and probably figure out to a science what sorts of salts/sugars, etc are in the oil...

#34 07-17-2007, 12:51 PM

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Originally Posted by Mojool

so with all this stuff about wvo and contamination, what are your opinions on svo? you can buy that stuff and probably figure out to a science what sorts of salts/sugars, etc are in the oil...

Again, if you are going to pay for SVO, wouldn't it make more sense to buy bio-diesel?

My main concern with SVO would be the higher viscosity, I don't know the long term effects of running it through the injection pump. It is significantly more viscous than diesel, I know some folks heat it before the pump to reduce viscosity but I have no idea how effective it is. I have no idea what SVO costs, but I do know what it costs to replace an injection pump.

I'm not the best person to ask, you really need to do your homework and decide what works for you.

Mojool · #35 07-17-2007, 01:00 PM

wise words man. i have done what homework i've been able to do. i too heat my oil to approach the viscosity of the stock fuel's viscosity. at 160f it's supposed to be sufficient of a viscosity to not put a strain on teh IP. time will tell. there are ppl that have put tens of thousands of miles on with WVO, and until one of them burns up an engine and tears it down, we'll never know.

of course, i wouldn't buy some brand new CDI and put WVO in that; the risks are too great. but toying around with some old benz that would have probably been sold and someone put 25" rims or something on it...that's not much of a risk...and it's kind of fun...it's led me to many forums and i've learned many more things about which i'd have never known...hey...life is good, even when one may not be doing the best things suited for their autos

......

you're right, SVO is pretty pricey. but i was just wondering about your thoughts on the matter.

NC Benz · #36 07-17-2007, 01:14 PM

Indeed education is very key here. One way of doing things may not work out for everyone YMMV.

But reading what successful people are doing... successful meaning people that have been doing this long term and have not ruined anything.

You cant just throw unfiltered WVO in a tank! I am quad filtering (to 5 micron) the oil I use. And let it settle... gravity and time are your friends.

The last couple of batches, there has been no residue on the bottom. No floaties, nothing but clear (not cloudy) root beer color fluid.

I have also done testing in the freezer to see how thick the oil gets. And also the frying pan water test is a good one too.

I dont think I would ever go straight WVO. I would have some dino in there or at least Bio. Right now I am running with a 50/50 mix of WVO and Dino. The car seems to like it. Plenty of acceleration and appears to be getting the same fuel mileage.

Quote:

Originally Posted by Mojool

wise words man. i have done what homework i've been able to do. i too heat my oil to approach the viscosity of the stock fuel's viscosity. at 160f it's supposed to be sufficient of a viscosity to not put a strain on teh IP. time will tell. there are ppl that have put tens of thousands of miles on with WVO, and until one of them burns up an engine and tears it down, we'll never know.

of course, i wouldn't buy some brand new CDI and put WVO in that; the risks are too great. but toying around with some old benz that would have probably been sold and someone put 25" rims or something on it...that's not much of a risk...and it's kind of fun...it's led me to many forums and i've learned many more things about which i'd have never known...hey...life is good, even when one may not be doing the best things suited for their autos

......

you're right, SVO is pretty pricey. but i was just wondering about your thoughts on the matter.

Mojool · #37 07-17-2007, 01:31 PM

i've read some not so good things about combining vo/dino diesel. specifically some sort of paraffin buildup in the filter, etc. but if you are doing it and it's working, awesome!

other ppl cut their wvo with kerosine and rug (regular unleaded gasoline)...

i'm running a two tank heated system...i do get a tiny bit of cross contamination during switchover, but so far i'm good.....SO FAR...

hard to get commercial BD here in charlotte...what, do you think bankers drive diesels!?!?!? if they did, we'd have it...

noobs

NC Benz · #38 07-17-2007, 01:49 PM

Quote:

Originally Posted by Mojool

i've read some not so good things about combining vo/dino diesel. specifically some sort of paraffin buildup in the filter, etc. but if you are doing it and it's working, awesome!

other ppl cut their wvo with kerosine and rug (regular unleaded gasoline)...

i'm running a two tank heated system...i do get a tiny bit of cross contamination during switchover, but so far i'm good.....SO FAR...

hard to get commercial BD here in charlotte...what, do you think bankers drive diesels!?!?!? if they did, we'd have it...

noobs

Check this out... http://www.biodiesel.org/buyingbiodiesel/retailfuelingsites/showstate.asp?st=NC

Hopefully there is something close to you.

NC Benz · #39 07-17-2007, 02:00 PM

Someone is giving away 12 CASES of 40 wt oil unused on CL. Tad heavy to burn I would think.

Mojool · #40 07-17-2007, 02:00 PM

thanks, but only one place in town and they only have b20

like i said.

noobs.

gatorblue92 · #41 07-17-2007, 07:57 PM

well i for one am gonna keep putting #2 diesel in my car just the way mercedes says to

Mojool · #42 07-17-2007, 09:24 PM

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well i for one am gonna keep putting #2 diesel in my car just the way mercedes says to

apparently this is a requirement of being in teh OBK crew

#43 07-17-2007, 09:30 PM

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Originally Posted by Mojool

apparently this is a requirement of being in teh OBK crew

Common sense isn't a requirement, but it sure helps!

Mojool · #44 07-17-2007, 09:40 PM

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Originally Posted by ForcedInduction

Common sense isn't a requirement, but it sure helps!

lol i hear ya man

Hatterasguy · #45 07-17-2007, 10:55 PM

The emissions must be pretty wicked when you burn old oil.

I know I hate getting stuck behind an old POS gas car thats puffing blue smoke, man those things stink. They are supposed to be illegal around here, but sadly the cops don't pull them over.