PAO is a Dino?

[ssj4]

"Despite their name, most synthetic derived motor oils (ie Mobil 1, Castrol Formula RS etc ) are actually derived from mineral oils - they are mostly Polyalphaolifins and these come from the purest part of the mineral oil refraction process, the gas. PAO oils will mix with normal mineral oils which means Joe public can add synthetic to his mineral, or mineral to his synthetic without his car engine seizing up. The most stable bases are polyol-ester (not polyester, you fool). When I say 'stable' I mean 'less likely to react adversely with other compounds.' Synthetic oil bases tend not to contain reactive carbon atoms for this reason. Reactive carbon has a tendency to combine with oxygen creating an acid. As you can imagine, in an oil, this would be A Bad Thing. So think of synthetic oils as custom-built oils. They're designed to do the job efficiently but without any of the excess baggage that can accompany mineral based oils."

Is this true?

http://www.carbibles.com/engineoil_bible.html

 

[sxg6]

This thread touches on the topic. In short, PAO is synthesized using parts of crude oil.
Read the end of page 2, and onto page 3.

http://theoildrop.server101.com/forums/s...part=2&vc=1

 

[mdocod]

I was just reading through that bible... I'd be careful what I believed there... I picked out at least 3 major errors within about 2 pages of reading.

 

[Blue99]

In a round-about way, both PAO base oils and GRP I/II mineral/conventional oils have an origin in a barrel of crude oil.

Ethylene gas is a byproduct of the refinery process and yields the 1-decene feedstock that is the basis for a common PAO production process.

But mineral/conventional oils are basically produced by a subtraction process, either removing or upgrading unwanted components from the factions produced by the refinery distillation process.

PAO base oils are produced by petrochemical companies that produce a variety of chemicals including the basic feedstocks for plastics, most commonly referred to as "man-made" or "synthetic".

PAO base oils reflect the chemical synthesis process by the manner in which the hydrocarbon chain length can be controlled during production.

Thus, the uniform molecular chain length makes a fluid of very consistent molecular size and the associated high VI index & thermo qualities.

Conventional/conventional oils end up being composed of a blend of varying chain lengths, essentially due to the subtraction & re-arranging that is the "refining" process and thus do not have the performance properties of a PAO.

 

[ssj4]

OK, I believe I get it. Actually Synthetic anything is typically made using an existing component. Unless of course we are going to start with elementary particles, and work our way up.

Can anyone say $500,000 a quart oil.

 

[double vanos]

Where do the severely hydrocracked VHVI GRP III+ base oils fit in?

I thought they were nearly as pure as PAO'S and had same size molecules too..

Just asking ....

 

[Blue99]

"Where do the severely hydrocracked VHVI GRP III+ base oils fit in?"

This question really tests the definition of "synthetic". Is it synthetic due to the manufacturing/refining process or due to the performance level?

The next ILSAC GF-5 specification will be partially based on the upcoming availability of higher VI index base oils.

A portion will be produced by the waxy feedstocks from GTL "natural gas to liquid" syn-fuel production. The natural tendency will be to refer to these base oils as "synthetic".

But, on an equal performance level, the Grp III base stocks produced from Asia/Pacific gasoline hydro-cracker bottoms, (Indonesia & Singapore have no huge demand for asphalt vs the typical US gasoline refinery), will these Grp III base oils be designated "synthetic"?

It's an interesting debate...

 

[JohnBrowning]

Just like a Dimond is Kingsford Char-Coal Briquette!

 

[G-MAN]

Quote:

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Just like a Dimond is Kingsford Char-Coal Briquette!

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Charcoal is not the same thing as coal.

 

[Steve S]

Don't believe every thing you read on the internet.Pao is a copy of the best lubricating molecule found in petro oil. Pao is usually synthesized from some kind of gas ,I am not exactly sure what kind "{ethelene?}"sp"

 

[B00SS]

Quote:

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Quote:

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Just like a Dimond is Kingsford Char-Coal Briquette!

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Charcoal is not the same thing as coal.

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Hmmm, was that the point?

 

[JohnBrowning]

BOOSS, I am glad someone got it!That was indeed the point!!!

 

[lars11]

You could make it out of anything carbohydrated, but since you have leftover already hot stock at refinerys you's use that. Everything you use is a dervied somehow from mother earth, even things called synthetic!

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