Synthetic Blends

"nospam" > wrote in message news:gOycf.557673$xm3.374084@attbi_s21...
An old man I've known since the '70's (he's now 82 years old) asked me the question "What's 10W30 mean?"
I told him, and he replied, if 10 weight is OK in the winter, why not all of the time? I had no answer. He said that since the 1950's he has run only pure 10 weight oil in every car he's ever owned. He said that once in the late '50's there was a recall, he took the car in and the mechanics were astonished by how perfect the interior of his engine was.
The way he explained it to me was that 10 weight oil's molecules are smaller, thus allowing more of them to get to bearing surfaces, etc. and providing better lubrication overall.

Does anyone else here think this could be true?

Dave

10 weight oil implies low viscosity, and the Einsteinian model shows that viscosity is proportional
to molecular size. So, in a sense he is right that the molecules are smaller. But, for optimum lubrication
the molecules need to be of a certain configuration and they need to be large enough to be displaced
only slowly.

He is partially correct, and partially off base.

On Thu, 10 Nov 2005 23:25:25 GMT, > wrote:

>
> "nospam" > wrote in message news:gOycf.557673$xm3.374084@attbi_s21...
> An old man I've known since the '70's (he's now 82 years old) asked me the question "What's 10W30 mean?"
> I told him, and he replied, if 10 weight is OK in the winter, why not all of the time? I had no answer. He said that since the 1950's he has run only pure 10 weight oil in every car he's ever owned. He said that once in the late '50's there was a recall, he took the car in and the mechanics were astonished by how perfect the interior of his engine was.
> The way he explained it to me was that 10 weight oil's molecules are smaller, thus allowing more of them to get to bearing surfaces, etc. and providing better lubrication overall.
>
> Does anyone else here think this could be true?
>
> Dave
>
> 10 weight oil implies low viscosity, and the Einsteinian model shows that viscosity is proportional
> to molecular size. So, in a sense he is right that the molecules are smaller. But, for optimum lubrication
> the molecules need to be of a certain configuration and they need to be large enough to be displaced
> only slowly.
>
> He is partially correct, and partially off base.
I may have been absent that day in Chem (it's only been since
1963-64), but I thought that the molecules were the same size for a
given chemical, with the difference being either the spacing between
molecules as with the difference between ice and boiling water, or the
numbers or protons/neutrons encircling the atom as with the difference
between regular water (that's kitchen , not bathroom) and heavy water.
--
Spike
1965 Ford Mustang Fastback 2+2, Vintage Burgundy
w/Black Std Interior, A Code 289 C4 Trac-Lok;
Vintage 40 16" rims w/225/50ZR16 KDWS BF Goodrich
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audio-video...
See my ride at....
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On Thu, 10 Nov 2005 02:42:16 GMT, "Richard" > wrote:

>
> wrote in message
. net...
>>
>> "John" > wrote in message
>> ...
>>
>> > I have a friend that never changes his oil. Every 3,000 miles he puts
>> > on a new filter and tops it off with Mobil 1. He's done this for
>> > years now. This is probably equivalent to changing the oil every 15
>> > to 30 K miles, depending on how much oil the filter holds.
>>
>> He probably never changes his underdrawers either. Only a fool
>> treats an engine this way.
>
>I wonder. I seem to recall reading an article many, many years ago that
>Greyhound did the same thing.

Maybe the consistency of the oil increases as the wear on the engine
does so leaks don't get any worse?
Nevertheless, anyone advocating it is a cheap loser.
-Rich

On Thu, 10 Nov 2005 01:23:30 GMT, > wrote:

>
>"trainfan1" > wrote in message > From a chemical &
>physical perspective, synthetics are far superior,
>> but please don't let science get in the way of anecdotal evidence...
>> which is all you will get in usenet discussions.
>>
>> Rob
>
>From a chemical perspective, I am far more qualified to make an observation
>than you will ever be.
>I was the R&D director for a major global firm for years.
>
>You can believe all the bull**** you want, but the facts are far less
>definitive that you would
>hope we would believe.

Has the consumer *ever* had all the data they wanted on a product when
a company is marketing it for a profit? Hell no!

When can you tell when a salesman is lying? Excuse me, salesperson.

When their lips are moving.

--
John
'69 Mach 1 390 Toploader Acapulco Blue
ThunderSnake #59

Joe wrote:
> John > wrote in
> :
>
>
>>On Wed, 09 Nov 2005 18:43:57 -0600, WindsorFox
> wrote:
>>
>>
>>>John wrote:
>>>
>>>
>>>>I have a friend that never changes his oil. Every 3,000 miles he
>
> puts
>
>>>>on a new filter and tops it off with Mobil 1. He's done this for
>>>>years now. This is probably equivalent to changing the oil every
>
> 15
>
>>>>to 30 K miles, depending on how much oil the filter holds.
>>>>
>>>>John
>>>>'69 Mach 1 390 Toploader Acapulco Blue
>>>>ThunderSnake #59
>>>
>>>
>>> God forbid you tell Joe that. He goes out of his way to make
>>>sophomoric crap about a one year change interval.
>>
>>Joe who?
>
>
> Ask WF how often he changes his Amsoil.
>
> And again for the record, WF, anyone who changes his or her oil once a
> year is a fool.
>


And yet, you manage to make one of yourself by mearly pressing the
reply button.


--
I'm intrigued by the thought that, later on,
the poster wont be able to find his question,
let alone an answer. - Backyard Mechanic

wrote:

>
> I assure that I was, and it was for the petroleum industry. I will not
> mention
> the company name, but even you would probably recognize it.
>
>
>


And I know people that still are chemists and engineers for oil
companies and the companies that make addatives and they tend to
disagree. If you still were in said industry you would know that since
all the major oil companies have some form of synthetic on their line up
it's okay to admit the truth. But not too okay because if EVERYone went
to 20K mile plus change intervals, well, SOMEONE is gonna miss a
Lamborghini payment, and we just can't have that.

--
I'm intrigued by the thought that, later on,
the poster wont be able to find his question,
let alone an answer. - Backyard Mechanic

WindsorFox > wrote in news:i9Scf.2980
$4n5.1610@dukeread01:

> Joe wrote:
>> John > wrote in
>> :
>>
>>
>>>On Wed, 09 Nov 2005 18:43:57 -0600, WindsorFox
> wrote:
>>>
>>>
>>>>John wrote:
>>>>
>>>>
>>>>>I have a friend that never changes his oil. Every 3,000 miles he
>>
>> puts
>>
>>>>>on a new filter and tops it off with Mobil 1. He's done this for
>>>>>years now. This is probably equivalent to changing the oil every
>>
>> 15
>>
>>>>>to 30 K miles, depending on how much oil the filter holds.
>>>>>
>>>>>John
>>>>>'69 Mach 1 390 Toploader Acapulco Blue
>>>>>ThunderSnake #59
>>>>
>>>>
>>>> God forbid you tell Joe that. He goes out of his way to make
>>>>sophomoric crap about a one year change interval.
>>>
>>>Joe who?
>>
>>
>> Ask WF how often he changes his Amsoil.
>>
>> And again for the record, WF, anyone who changes his or her oil once
a
>> year is a fool.
>>
>
>
> And yet, you manage to make one of yourself by mearly pressing
the
> reply button.

LOL! You're just too funny, WF. So how often do you change your
Amsoil anyway?

WindsorFox > wrote in
news:ghScf.2981$4n5.2678@dukeread01:

> wrote:
>
>>
>> I assure that I was, and it was for the petroleum industry. I will
>> not mention
>> the company name, but even you would probably recognize it.
>>
>>
>>
>
>
> And I know people that still are chemists and engineers for oil
> companies and the companies that make addatives and they tend to
> disagree. If you still were in said industry you would know that
> since all the major oil companies have some form of synthetic on
> their line up it's okay to admit the truth. But not too okay because
> if EVERYone went to 20K mile plus change intervals, well, SOMEONE is
> gonna miss a Lamborghini payment, and we just can't have that.

So how often do you change your Amsoil, WF?

lol