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View Full Version : Synthetic Oil vs Pseudo-Synthetic [Fossil Derivatives]



Richard Cranium
02-03-2011, 01:15 PM
Are there any Oil Experts her, or someone well read in the oil area ?

Any documented mpg increases ?

Reputedly, these lubricants have very extended change intervals.
Also they exhibit low temp lubrication, and well suited for high load, high stress, high temperature engines.

Some other "Synthetic" oils on the market are Pseudo-Synthetic or Semi-Synthetic..
The are derived from crude oil or parrifin as opposed to true synthetics, AFIK, these are mixtures of Crude based and true synthetic oils.

There are few synthetic oils that I know of, #3 is "synthetic" in USA only
1. Diester
2. Polyester
3. Mobil-1 polyalphaolefin engine oil Group III [see 3a for international rating]

1a. Diester Motor oil is made from Ethylene Glycol and Acid, it retains molecular bonding at much higher temperatures than the Pseudo's.
It is much slower to "flash" than crude based lube and greater shear strength.

2a. Polyester Motor is made from Propolene Glycol and Acid, it also retains molecular bonding at elevated temperatures and great shear strength, however when it starts to break the molecular chain, it flashes only one molecule at at time..
It's main purpose today is use in refrigeration systems with R-134 & R-12
The Polyester was considered a "cheat" because of the reduced frictional load and the ability to run elevated engine oil temps without breakdown.

3a. Mobil-1, though a "synthetic", as far as I know does not possess the strength or high temp abilities of the first two.. but does advertise extended change interval. Group III base stocks [Mobil-1] are considered synthetic motor oil only in the United States;
elsewhere they are not allowed to be marketed as "synthetic".

20 years ago;
Diester 10w/40 was $17.00/qt
Polyester Racing oil $45.00/qt

These pure synthetics are not for use in Piston Driven Avaition due to Lead fallout nor in Rotary engines.

Lots of drivel, I understand, mostly specific application lubrication.

A side note, I have in stock about 48 qts of Lubrication Engrs 10w/40 Diester
The color is green, on their website I find no reference to it.
Probably died from excess cost..

Credit for the invention of true, non-mineral based Synthetic oils goes to Dr. Hermann Zorn, of Germany

Thanks for reading this mess.
Doc

Roland Jacques
02-03-2011, 01:41 PM
Doc
I cant speak to the oil preferences, but I have tested One "Oil" product that did give incredibly results. It sold as RVS Master Canada. http://www.rvsmaster.com/research.html
It sounds like a snake oil but i can testify that it does what they say. I put it in 3 motors and have taken one of those motors apart for a partial inspection. What I saw and measured was incredible IMO. Oh Yeah it did have some MPG Benefits also, a solid 5% and for a while 10% in 2 out of 3 vehicles.

A great source for Oil info is "Bob The Oil Guy forum" the forum is super active http://www.bobistheoilguy.com/cms/

Richard Cranium
02-07-2011, 05:52 PM
Thanks for the link, I'll check it out.

Got to note a great additive for worn engines Restore does what it says.


Contains, CSL = Copper, Silver, Lead

They melt and stick to the rings during "Blow-By" and build up, increasing compression..
I can attest to the fact it does work.. for worn engines.

[url]http://ecomodder.com/forum/showthread.php/restore-oil-additive-9011.html ("http://ecomodder.com/forum/showthread.php/restore-oil-additive-9011.html[/URL)