I agree that SVO viscosity is a critical element in accelerated wear of the IP. While our natural tendency is to look for only one damage factor, in this case, I believe the additive effect of all elements work to decrease the useful service life of the IP.
I am active on another diesel only board that deals with Ford trucks with Indirect Injection [pre 1994] and several members there run WVO as well as Waste Motor Oil [50/50 blend with diesel]. What is happening with the IP's on those applications patterns after what I've seen on others. Early failure. Seems the average life is about 2 years instead of the average of 10 seen with Petro Diesel only. "Run cheap fuel, buy expensive parts" seems to be the mantra. Grant... AZ On Wed, May 29, 2013 at 6:34 AM, Smith, Todd <todd.sm...@camc.org> wrote: > I have been following the Biodiesel and SVO community since 2004 and while > I certainly see the advantages and disadvantages to each system; Biodiesel > makes more sense in my situation. All of the reading and listening to SVO > advocates and some that posted hard data to analyze; I believe that > viscosity is by and large the silent killer of IP. Some of the tests that > I have seen have shown SVO heated to 180 degrees F. which should be normal > operating temperature for a properly warmed up system; showing viscosity > far in excess of cold No.2 diesel. > > Mike, you don't have to take my word for it. When you get a chance, read > the link on measuring the viscosity of motor oil at ehow; > http://www.ehow.com/how_6218753_measure-viscosity-motor-oil.html . > > Simply run two tests, one for your diesel fuel at ambient temperature and > one for your SVO at the normal operating temperature that your system runs. > If there is a huge difference then your IP HAS to work harder to pump fuel > and would wear more than typical. Jim Cathy's comment about dissolved salts > and Grant's comment about pH balances could certainly over a long term have > some effects, but IMHO viscosity is the real issue. If you do test your > viscosity, please report back since I would love to see if in your > situation it is the same as has been reported in other places. > > Thanks for your time. > > Todd Smith > > Confidentiality Note: The information contained in this message > may be privileged and confidential. If this e-mail contains > protected health information, you are hereby notified that any > dissemination, distribution or copying of this communication is > strictly prohibited,except as permitted by law. If you have > received this communication in error, please notify the sender > immediately by replying to this message and deleting it from your > computer. Thank you. > > > _______________________________________ > 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://mail.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://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
