PeachParts Mercedes-Benz Forum - View Single Post

Astroman · #69 03-06-2007, 03:52 AM

Quote:

Originally Posted by nerys

Yeah DOLT I was just thinking of this about an hour ago when it hit me MANY modern engines are made of aluminum and magnets do not work on aluminum :-(

Lead is definitely magnetic not sure about copper either way the percentage of copper is probably incredibly low ie not worried about it

aluminum I am worried about.

I am not worried about the engine at all I can not hurt this thing anymore than it already is I AM however worried about the other stuff you guys mentioned injectors pumps etc.. that stuff would probably get a wee upset at too much metal floating around in the fuel.

I am pretty confident I can filter it. Hit it with a magnet overnight then run it through multiple progressive filters etc.. anything small enough to get through the filters if done properly is also likely small enough not to bother the engine.

And another dolt on the process like vegatable oil. Duh gas and diesel are nothing more than refined oil.

That does make me curious what IS the difference between vegatable oil IE why can it be processed in such a way to use directly as diesel fuel but not motor oil ? IE when you make biodiesal out of WVO what ARE you making exactly. IE I know how to do it but "what" is the chemical atomic result of this process ie what is the fluid you get ?

I guess I partially know already but am unsure. The main point of processing wvo is to get rid of the water and glycerin right ? oil would not have this. So if I am thinking properly your not actually converting WVO to diesel of any sort your just removing the chemicals from it that make it harder for an engine to process ? ie what you have left is still just WVO but without the glycerin ? and that just happens to be burnable in a diesel engine ?

Will oil and Fuel mix homogeneously ? or will they separate if they sit ? ie would adding say a gallon of diesel per 10 gallons of used oil (properly filtered and processed) be enough to thin it for direct burning? or would I have to use an SVO type rig to preheat it etc.. ?

Also still no word on the safety issue. Is this more hazardous than diesel fuel in anyway to me ? ie if I put a gallon of diesel and a gallon of used processed motor oil which is more dangerous ? I am assuming (hoping) that used motor oil is no more dangerous than new motor oil ?

I would also run injector cleaner in every tank. This might help to alleviate any problems of build up from the motor oil. Either way I would save so much money on fuel that this little bit of cleaner in each tank would not effect the cost savings much at all. (I buy it by the gallon so my per use cost is less than the cost of a gallon of diesel and I would be saving 18 gallons per tank if this works out. This stuff would also help with any potential smoking (it reduces smoking as well)

Hell even if the car only lasted 2 years the savings in fuel alone would buy me several more cars if need be :-) (I burn 12-18 gallons of diesel a week) sometimes a tank a week (lots of driving my trip to work alone is 54 miles each way) so in a year figuring 15 gallons a week thats $2025 a year in fuel savings I paid $1200 for the car and have a second one that I got for $400 but it needs a bit of work but mostly cosmetic/brake work the drivetrain is in better shape than the one I drive daily)

I would prefer not to kill my car though as I have a bit of an attachment to it :-)

Chris Taylor
http://www.nerys.com/

Hmm... Biodiesel's technical name is Fatty Acid Methyl Ester. This is in no way related to petroleum diesel fuel. Now if you put vegetable oil (or anything else for that matter, including your cat) through a cracking process, you could make gasoline or diesel or asphalt, but it doesn't go the other direction. The real purpose of turning triglycerides (fats or oils) into "biodiesel" is to remove the glycerin molecule from the center of the triglyceride, replacing it with a much smaller and lighter methanol molecule at the head of each of the fatty acid chains, thus creating a new molecule and rendering its viscosity more suitable as a fuel. Glycerin is extraordinarily thick and heavy and vegetable oil, when not heated, is too thick to properly atomize in the cylinder under normal conditions. The other thing WVO/SVO burners conveniently overlook is the amount of Acrolein (toxic, acrid gas emission) produced when burning vegetable oil. This is a by-product of glycerin, which is not present in "biodiesel". In any case, WMO is still a petroleum product, not a triglyceride, and can't be processed the same way. Since you asked, I hope that helps.