>My new 1984 Mercedes 300DT is going to need an oil change right away. >Naturally I would like to consider using a non-petroleum-based oil. > >What are synthetic oils made of? Snips and snails and puppy-dog >tails? Sugar and spice and all things nice? > >In other words, are any/some/all synthetic oils non-petroleum? Are >any particular brands better than others? > >If I use synthetic oil (which I believe is much more expensive) >should I Get Real about one of those bypass filtering systems that >were recently discussed? > >Thank you. > >Maud >Trying to do the right thing in St. Louis, MO
Mainly made of "polyol ester", but I don't know what "polyol ester" is. :-/ I gave you these last time you asked about synthetic oil, did you check them? >Informative article about synthetic oils here: > >http://www.mr2.com/TEXT/synth_oil.txt >Synthetic Oil: Rx for Long Engine Life >by Curt Scott > >It's quite long, there's something shorter here: >http://archive.nnytech.net/index.php?view=25512&list=BIOFUEL > >... and some discussion here: >http://archive.nnytech.net/index.php?view=25512&list=biofuel&related=1 There's also this: ARS and Industry Test New Vegetable Oils as Industrial Lubricants ___________________________________________ ARS News Service Agricultural Research Service, USDA March 26, 2001 Linda McGraw, (309) 681-6530, [EMAIL PROTECTED] ___________________________________________ Several newly developed vegetable oils--from soybeans, canola, corn, sunflower, lesquerella, and meadowfoam--could replace more expensive and less biodegradable synthetic chemicals for industrial uses, according to an ARS chemist in Peoria, Ill. Researchers at ARS' National Center for Agricultural Utilization Research (NCAUR) in Peoria have developed and tested more than 50 new fluids derived from vegetable oils. They have also turned these vegetable-oil based fluids into replacements for petroleum-based materials. Under a research agreement with Caterpillar Inc., in Peoria, the ARS scientists are learning which of their 50 plus new fluids have the most potential as base oils for lubricants. So far, two have been found to perform as well as petroleum-based lubricants, according to Sevim Z. Erhan, leader of oil chemical research at NCAUR. The payoff: U.S. agriculture benefits by increasing the demand for U.S.-grown agricultural products. Environmental concerns have created a high demand for biodegradable lubricants and hydraulic fluids, but only two percent of the hydraulic fluids in bulldozers, tractors and heavy equipment is biodegradable. The ARS approach might help make the use of biodegradable lubricants more successful. Rather than develop a final lubricant for a specific use, Erhan and her colleagues make simple chemical modifications to vegetable oils and test them for improvements before adding lubricating additives. These modifications enable a biodegradable product to perform nearly as well as a synthetic one, but at lower cost. Biodegradable vegetable base oils cost about 35 cents a pound. In contrast, lubricant manufacturers face costs ranging from 25 cents for a base of mineral oil to $1.50 a pound for a base of synthetic esters. Caterpillar engineers are testing the performance of one of the ARS-developed base oils. ARS is the chief scientific research agency for the USDA. ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Remanufactured Ink Cartridges & Refill Kits at MyInks.com for: HP $8-20. Epson $3-9, Canon $5-15, Lexmark $4-17. Free s/h over $50 (US & Canada). http://www.c1tracking.com/l.asp?cid=6351 http://us.click.yahoo.com/0zJuRD/6CvGAA/qnsNAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
