I've saved probably twice that by running on WVO in my S350 alone. Okay, Okay, so maybe I'm still not close to break-even given all the toys and tools I've accumulated under the guise of being environmentally friendly - but everyone needs a hobby :-)
-Dave Walton On Fri, May 1, 2009 at 8:29 PM, Tom Hargrave <[email protected]> wrote: > OK, it's your car - I won't risk it in my $5,000 engine. > > Thanks, > Tom Hargrave > www.kegkits.com > http://www.kegkits.com/JABF/ > 256-656-1924 > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] > On Behalf Of dave walton > Sent: Friday, May 01, 2009 6:49 PM > To: Mercedes Discussion List > Subject: Re: [MBZ] Car runs excellent and on 90 percent Vegetable Oil > with10percent Diesel. > > The temperature of fuel going to the injectors makes NO difference on > the temperature of the fuel leaving the injectors. That tells me that > the injector has good thermal conductivity to the head and is a more > than adequate heat source to warm the liquid passing through it. If > the oil is too thick, not enough flows through the system and > acceleration is limited. The fuel filter is very effective at removing > particulates large enough to cause damage. > WVO will NOT cause coking of the injector or burnt rings in my > experience. I'm left blaming those reported problems on other > underlying issues. > > I wrapped both fuel lines with an outer hose circulated with coolant. > Using a flat plate heat exchanger actually made no noticeable > difference. Below 45F I thin with diesel or kerosene. I do filter the > hell out of the oil, but that's just to make the standard fuel filter > last longer. I'm running one of my 87SDL's on straight WVO with no > mods to the car (not the blue one I got from you - Pete) - just to > prove the point. Not enough miles on that one to make any > determination. So far it's running fine - at least during the summer. > I do have to admit that I got lazy and filled that one up with a few > tanks of 100% diesel over the winter. > > -Dave Walton > > On Fri, May 1, 2009 at 7:09 PM, tyler <[email protected]> wrote: >> WVO won't destroy a motor if it's done properly, but it almost never is. > The >> ad here claims they were able to just pour it into the tank. >> >> The injection systems on our MB Diesels are designed for fuel with a > certain >> viscosity, and cleanliness. WVO needs to be very well filtered, and heated >> to a high temp before it can meet these specs... >> >> Most of the WVO systems out there (including expensive commercial ones) > fail >> to achieve a sufficiently low fuel viscosity and high enough fuel >> temperature at the injector. A properly designed system requires massive >> heating capacity (usually powerful electric heat AND large coolant heat >> exchangers) to get the viscosity low enough. >> >> If you've been running with no problems for 70k, how are you filtering and >> heating your oil? >> >> Personally if I were to convert a MB Diesel to WVO, I would >> 1) determine the temperature at which my particular choice of used oil >> achieves a viscosity of 6-10 cSt or less >> 2) incorporate a temperature sensor into the system to guarantee that any >> oil entering the engine has reached this temperature (ie automatically >> switch back to diesel on low fuel temp) >> >> This temperature is probably more like 100C, while much lower temps are >> usually used... >> >> Tyler >> >> dave walton wrote: >>> >>> Interesting how people with no direct experience on a subject are so >>> willing to give advice. >>> >>> It's not surprising that people with no knowledge of how to maintain a >>> diesel experience failures - regardless of the fuel they use. Starting >>> out with a 20+ year old car that no one else wanted to buy does not >>> help. >>> >>> I pulled the head on my S350 20K after running on 100% WVO. It looked >>> fine inside. That was 50K ago. 70K+ and counting... >>> >>> -Dave Walton >> >> _______________________________________ >> http://www.okiebenz.com >> For new and used parts go to www.okiebenz.com >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> > > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > No virus found in this incoming message. > Checked by AVG. > Version: 7.5.557 / Virus Database: 270.12.11/2089 - Release Date: 4/30/2009 > 5:53 PM > > > No virus found in this outgoing message. > Checked by AVG. > Version: 7.5.557 / Virus Database: 270.12.11/2089 - Release Date: 4/30/2009 > 5:53 PM > > > > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
