>Date: Thu, 18 Sep 2003 22:09:53 -0000 >From: "nortonvillars" <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Subject: Re: What Is Synthetic Oil Made Of? > >Synthetic oils (Group IV and V) are made from ethane, propane, butane >and other gases-liquids from petroleum processing or hydrocarbon >processing. The single bond alkanes are cracked (alkenes and some >alkynes) so they have double bonds (called "olefins"). These are >combined or polymerized (more correctly "oligermerized") to form >polyolefins. Same as the polyethylene in your garbage bags. The >carbon 8-14 are oil like, hence synthetic oils. They are stable to >high temp. But they do not accept additives well so they are blended >with mineral oils and esters to assist addtive packages. > >Yes, they can be aggressive on old engine seals and sludges. For >older cars, best to not run them. They are too costly. Use cheap >minerals oils. > >Some canola is being examined for additives to replace or run with >mineral-synthetics. Of course, veg oils form an important part of >biofuels. Hope this helps. > > > > >--- In biofuel@yahoogroups.com, Keith Addison <[EMAIL PROTECTED]> wrote: > > >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.
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