Mike Romain

Unfortunately my mind doesn't track straight all the time these days,
too many pills. Not sure what set me off on that one....

Mike


Campbell C Freeman wrote:
>
> No problem.
>
> I'm just a 50 year old guy in SC who has wanted a Jeep since he was a child,
> playing "Army." Now I finally have one...a "real" one (boy, that will
> likely start it up again), and I love it, and I want to keep it as long as I
> can.
>
> And who knows, I may get "run over by a bus" on the way home today. I hope
> not, but if I do, then none of this will have mattered anyway...
>
> Thanks,
>
> Campbell Freeman
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:420A598A.4348A499@sympatico.ca...
> > Campbell C Freeman wrote:
> >>
> >> Well...again I ask "...did you even read my original post...?"
> >
> > Not well enough I guess, sorry...
> >
> > Mike

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

Hi Campbell,
You use the word "synthetic" as if it's not a petroleum product.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Campbell C Freeman wrote:
>
> Well...again I ask "...did you even read my original post...?" I never said
> anything about "...how long (I) could go between oil changes..." OR about
> the so-called "invincibility" to which you refer, but I have already
> commented about that.
>
> BTW...both Castrol Syntec & Mobile1 are fully synthetic oils, as are Red
> Line and Amsoil.
>
> I do use synthetic and I am not ashamed to do so. My Jeep Wrangler Sport is
> a 2001 (bought new in May 2001), and only has 23,000 miles. I never go past
> 3 - 3.5 K on the "oil." This averages to under 20 miles a day
> (roughly)...98% city driving...which means I can go up to 6 months between
> oil changes. That is one of the reasons why I use synthetic oil. It is
> also my choice to do so...like it or not...agree with it or not.
>
> I give up. Please disregard my original post entirely.
>
> Campbell Freeman
>
> And thanks Jerry Bransford. I always appreciate your posts, knowledge,
> measured approach, and advice.

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

Hi Campbell,
You use the word "synthetic" as if it's not a petroleum product.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Campbell C Freeman wrote:
>
> Well...again I ask "...did you even read my original post...?" I never said
> anything about "...how long (I) could go between oil changes..." OR about
> the so-called "invincibility" to which you refer, but I have already
> commented about that.
>
> BTW...both Castrol Syntec & Mobile1 are fully synthetic oils, as are Red
> Line and Amsoil.
>
> I do use synthetic and I am not ashamed to do so. My Jeep Wrangler Sport is
> a 2001 (bought new in May 2001), and only has 23,000 miles. I never go past
> 3 - 3.5 K on the "oil." This averages to under 20 miles a day
> (roughly)...98% city driving...which means I can go up to 6 months between
> oil changes. That is one of the reasons why I use synthetic oil. It is
> also my choice to do so...like it or not...agree with it or not.
>
> I give up. Please disregard my original post entirely.
>
> Campbell Freeman
>
> And thanks Jerry Bransford. I always appreciate your posts, knowledge,
> measured approach, and advice.

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

Hi Campbell,
You use the word "synthetic" as if it's not a petroleum product.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Campbell C Freeman wrote:
>
> Well...again I ask "...did you even read my original post...?" I never said
> anything about "...how long (I) could go between oil changes..." OR about
> the so-called "invincibility" to which you refer, but I have already
> commented about that.
>
> BTW...both Castrol Syntec & Mobile1 are fully synthetic oils, as are Red
> Line and Amsoil.
>
> I do use synthetic and I am not ashamed to do so. My Jeep Wrangler Sport is
> a 2001 (bought new in May 2001), and only has 23,000 miles. I never go past
> 3 - 3.5 K on the "oil." This averages to under 20 miles a day
> (roughly)...98% city driving...which means I can go up to 6 months between
> oil changes. That is one of the reasons why I use synthetic oil. It is
> also my choice to do so...like it or not...agree with it or not.
>
> I give up. Please disregard my original post entirely.
>
> Campbell Freeman
>
> And thanks Jerry Bransford. I always appreciate your posts, knowledge,
> measured approach, and advice.

Steve

Hi Campbell,

The main claim of the new Mobil One Extended Performance is the longer
15,000 mile service interval. Looks like they're trying to answer to
AMSOIL's extended service claims (35,000 miles!):

http://www.worldsbestoil.ca/0w30-ams...ne-engines.php

As for the Castrol Syntec, be careful. Apparently the US-made version is
not a 'true' synthetic and is a relatively poor performer. Look for the
imported Castrol Syntec with 'Made in Germany' printed on the bottle.

Myself, I change the non-synthetic 5W-30 in my high-mileage 4.0L every
3K miles. The engine runs great and it doesn't burn oil.

Steve
http://xjeep.dyndns.org


Campbell C Freeman wrote:
> I have been using Mobile 1 Synthetic Oil for years & was pleased to hear
> about the introduction of Mobile 1 Extended Performance Synthetic. What I
> found disturbing was that it does not meet API ILSAC GF-4 Certification
> while Castrol Syntec does. I believe Mobile 1 SuperSyn does meet these
> specs. At any rate can you tell me the reason for this?
>
> I am considering Castrol Syntec a try for my next change which does meet
> the GF-4 specs.
>
> Or does it not really make that much difference?
>
> 2001 Jeep Wrangler Sport 4L 6 cyl w/ 23K miles & I have been pleased w/ the
> performance of Mobile 1. The manual calls for 10W30 oil.
>
> Thank you,
> Campbell C Freeman
> Columbia, SC

Steve

Hi Campbell,

The main claim of the new Mobil One Extended Performance is the longer
15,000 mile service interval. Looks like they're trying to answer to
AMSOIL's extended service claims (35,000 miles!):

http://www.worldsbestoil.ca/0w30-ams...ne-engines.php

As for the Castrol Syntec, be careful. Apparently the US-made version is
not a 'true' synthetic and is a relatively poor performer. Look for the
imported Castrol Syntec with 'Made in Germany' printed on the bottle.

Myself, I change the non-synthetic 5W-30 in my high-mileage 4.0L every
3K miles. The engine runs great and it doesn't burn oil.

Steve
http://xjeep.dyndns.org


Campbell C Freeman wrote:
> I have been using Mobile 1 Synthetic Oil for years & was pleased to hear
> about the introduction of Mobile 1 Extended Performance Synthetic. What I
> found disturbing was that it does not meet API ILSAC GF-4 Certification
> while Castrol Syntec does. I believe Mobile 1 SuperSyn does meet these
> specs. At any rate can you tell me the reason for this?
>
> I am considering Castrol Syntec a try for my next change which does meet
> the GF-4 specs.
>
> Or does it not really make that much difference?
>
> 2001 Jeep Wrangler Sport 4L 6 cyl w/ 23K miles & I have been pleased w/ the
> performance of Mobile 1. The manual calls for 10W30 oil.
>
> Thank you,
> Campbell C Freeman
> Columbia, SC

Steve

Hi Campbell,

The main claim of the new Mobil One Extended Performance is the longer
15,000 mile service interval. Looks like they're trying to answer to
AMSOIL's extended service claims (35,000 miles!):

http://www.worldsbestoil.ca/0w30-ams...ne-engines.php

As for the Castrol Syntec, be careful. Apparently the US-made version is
not a 'true' synthetic and is a relatively poor performer. Look for the
imported Castrol Syntec with 'Made in Germany' printed on the bottle.

Myself, I change the non-synthetic 5W-30 in my high-mileage 4.0L every
3K miles. The engine runs great and it doesn't burn oil.

Steve
http://xjeep.dyndns.org


Campbell C Freeman wrote:
> I have been using Mobile 1 Synthetic Oil for years & was pleased to hear
> about the introduction of Mobile 1 Extended Performance Synthetic. What I
> found disturbing was that it does not meet API ILSAC GF-4 Certification
> while Castrol Syntec does. I believe Mobile 1 SuperSyn does meet these
> specs. At any rate can you tell me the reason for this?
>
> I am considering Castrol Syntec a try for my next change which does meet
> the GF-4 specs.
>
> Or does it not really make that much difference?
>
> 2001 Jeep Wrangler Sport 4L 6 cyl w/ 23K miles & I have been pleased w/ the
> performance of Mobile 1. The manual calls for 10W30 oil.
>
> Thank you,
> Campbell C Freeman
> Columbia, SC

MikeinIN

My $0.000002...

I have had the opportunity to study quite a lot of closely held
oil/filter/wear information. Here's the basics:

Keeping oil clean is the primary goal. What is 'clean'? The primary
component of 'clean' is particulate loading and particulate size. Your
normal paper oil filter filters out most of the particulates 25 microns and
larger. That's 0.001 inches. The smaller chunks keep circulating. Think
about a low viscosity slurry of oil and rubbing compound.

As the total particulate loading is reduced and the maximum size is reduced
by more efficient filtration, the total amount of component wear starts
dropping rapidly. Cutting the load and maximum size of particulates in half
results cutting the total wear by a square root function. There is also the
distinct probability that any single element pleated paper filter will be
leaking unfiltered oil (blow-through) by 3K-5K miles.

The other thing that happens is that the additives and stabilizers in the
oil are depleted and there is an associated breakdown of the polymer
molecules. However, I am aware of an experiment that ran petroleum oil with
double efficiency filtration that ran 30K miles while maintaining the oil
within all oil testing specifications.

Another factor is the contamination of oil with other liquids - fuel or
coolant - that serves to reduce viscosity and upset/reduce the additives,
breakdown the oil and drastically accelerate wear.

A true synthetic (Mobil 1 and many others) does not breakdown like pure
petroleum products. But, it can get just as dirty.

In a perfect world, using a premium lower-micron rated filter and changing
it frequently can allow a synthetic oil to be used over and over for many
miles and still maintain minimal total wear. The cost of using synthetic
oil is the oil, not the filter. Premium filters generally cost around $10.

Clean oil = low wear.

MikeinIN (engineer in an automotive related industry)




"Steve" <xjlifter@bogus.com> wrote in message
news:36vh4rF57ai01U1@individual.net...
> Hi Campbell,
>
> The main claim of the new Mobil One Extended Performance is the longer
> 15,000 mile service interval. Looks like they're trying to answer to
> AMSOIL's extended service claims (35,000 miles!):
>
> http://www.worldsbestoil.ca/0w30-ams...ne-engines.php
>
> As for the Castrol Syntec, be careful. Apparently the US-made version is
> not a 'true' synthetic and is a relatively poor performer. Look for the
> imported Castrol Syntec with 'Made in Germany' printed on the bottle.
>
> Myself, I change the non-synthetic 5W-30 in my high-mileage 4.0L every
> 3K miles. The engine runs great and it doesn't burn oil.
>
> Steve
> http://xjeep.dyndns.org
>
>
> Campbell C Freeman wrote:
> > I have been using Mobile 1 Synthetic Oil for years & was pleased to hear
> > about the introduction of Mobile 1 Extended Performance Synthetic. What
I
> > found disturbing was that it does not meet API ILSAC GF-4 Certification
> > while Castrol Syntec does. I believe Mobile 1 SuperSyn does meet these
> > specs. At any rate can you tell me the reason for this?
> >
> > I am considering Castrol Syntec a try for my next change which does
meet
> > the GF-4 specs.
> >
> > Or does it not really make that much difference?
> >
> > 2001 Jeep Wrangler Sport 4L 6 cyl w/ 23K miles & I have been pleased w/
the
> > performance of Mobile 1. The manual calls for 10W30 oil.
> >
> > Thank you,
> > Campbell C Freeman
> > Columbia, SC

MikeinIN

My $0.000002...

I have had the opportunity to study quite a lot of closely held
oil/filter/wear information. Here's the basics:

Keeping oil clean is the primary goal. What is 'clean'? The primary
component of 'clean' is particulate loading and particulate size. Your
normal paper oil filter filters out most of the particulates 25 microns and
larger. That's 0.001 inches. The smaller chunks keep circulating. Think
about a low viscosity slurry of oil and rubbing compound.

As the total particulate loading is reduced and the maximum size is reduced
by more efficient filtration, the total amount of component wear starts
dropping rapidly. Cutting the load and maximum size of particulates in half
results cutting the total wear by a square root function. There is also the
distinct probability that any single element pleated paper filter will be
leaking unfiltered oil (blow-through) by 3K-5K miles.

The other thing that happens is that the additives and stabilizers in the
oil are depleted and there is an associated breakdown of the polymer
molecules. However, I am aware of an experiment that ran petroleum oil with
double efficiency filtration that ran 30K miles while maintaining the oil
within all oil testing specifications.

Another factor is the contamination of oil with other liquids - fuel or
coolant - that serves to reduce viscosity and upset/reduce the additives,
breakdown the oil and drastically accelerate wear.

A true synthetic (Mobil 1 and many others) does not breakdown like pure
petroleum products. But, it can get just as dirty.

In a perfect world, using a premium lower-micron rated filter and changing
it frequently can allow a synthetic oil to be used over and over for many
miles and still maintain minimal total wear. The cost of using synthetic
oil is the oil, not the filter. Premium filters generally cost around $10.

Clean oil = low wear.

MikeinIN (engineer in an automotive related industry)




"Steve" <xjlifter@bogus.com> wrote in message
news:36vh4rF57ai01U1@individual.net...
> Hi Campbell,
>
> The main claim of the new Mobil One Extended Performance is the longer
> 15,000 mile service interval. Looks like they're trying to answer to
> AMSOIL's extended service claims (35,000 miles!):
>
> http://www.worldsbestoil.ca/0w30-ams...ne-engines.php
>
> As for the Castrol Syntec, be careful. Apparently the US-made version is
> not a 'true' synthetic and is a relatively poor performer. Look for the
> imported Castrol Syntec with 'Made in Germany' printed on the bottle.
>
> Myself, I change the non-synthetic 5W-30 in my high-mileage 4.0L every
> 3K miles. The engine runs great and it doesn't burn oil.
>
> Steve
> http://xjeep.dyndns.org
>
>
> Campbell C Freeman wrote:
> > I have been using Mobile 1 Synthetic Oil for years & was pleased to hear
> > about the introduction of Mobile 1 Extended Performance Synthetic. What
I
> > found disturbing was that it does not meet API ILSAC GF-4 Certification
> > while Castrol Syntec does. I believe Mobile 1 SuperSyn does meet these
> > specs. At any rate can you tell me the reason for this?
> >
> > I am considering Castrol Syntec a try for my next change which does
meet
> > the GF-4 specs.
> >
> > Or does it not really make that much difference?
> >
> > 2001 Jeep Wrangler Sport 4L 6 cyl w/ 23K miles & I have been pleased w/
the
> > performance of Mobile 1. The manual calls for 10W30 oil.
> >
> > Thank you,
> > Campbell C Freeman
> > Columbia, SC

MikeinIN

My $0.000002...

I have had the opportunity to study quite a lot of closely held
oil/filter/wear information. Here's the basics:

Keeping oil clean is the primary goal. What is 'clean'? The primary
component of 'clean' is particulate loading and particulate size. Your
normal paper oil filter filters out most of the particulates 25 microns and
larger. That's 0.001 inches. The smaller chunks keep circulating. Think
about a low viscosity slurry of oil and rubbing compound.

As the total particulate loading is reduced and the maximum size is reduced
by more efficient filtration, the total amount of component wear starts
dropping rapidly. Cutting the load and maximum size of particulates in half
results cutting the total wear by a square root function. There is also the
distinct probability that any single element pleated paper filter will be
leaking unfiltered oil (blow-through) by 3K-5K miles.

The other thing that happens is that the additives and stabilizers in the
oil are depleted and there is an associated breakdown of the polymer
molecules. However, I am aware of an experiment that ran petroleum oil with
double efficiency filtration that ran 30K miles while maintaining the oil
within all oil testing specifications.

Another factor is the contamination of oil with other liquids - fuel or
coolant - that serves to reduce viscosity and upset/reduce the additives,
breakdown the oil and drastically accelerate wear.

A true synthetic (Mobil 1 and many others) does not breakdown like pure
petroleum products. But, it can get just as dirty.

In a perfect world, using a premium lower-micron rated filter and changing
it frequently can allow a synthetic oil to be used over and over for many
miles and still maintain minimal total wear. The cost of using synthetic
oil is the oil, not the filter. Premium filters generally cost around $10.

Clean oil = low wear.

MikeinIN (engineer in an automotive related industry)




"Steve" <xjlifter@bogus.com> wrote in message
news:36vh4rF57ai01U1@individual.net...
> Hi Campbell,
>
> The main claim of the new Mobil One Extended Performance is the longer
> 15,000 mile service interval. Looks like they're trying to answer to
> AMSOIL's extended service claims (35,000 miles!):
>
> http://www.worldsbestoil.ca/0w30-ams...ne-engines.php
>
> As for the Castrol Syntec, be careful. Apparently the US-made version is
> not a 'true' synthetic and is a relatively poor performer. Look for the
> imported Castrol Syntec with 'Made in Germany' printed on the bottle.
>
> Myself, I change the non-synthetic 5W-30 in my high-mileage 4.0L every
> 3K miles. The engine runs great and it doesn't burn oil.
>
> Steve
> http://xjeep.dyndns.org
>
>
> Campbell C Freeman wrote:
> > I have been using Mobile 1 Synthetic Oil for years & was pleased to hear
> > about the introduction of Mobile 1 Extended Performance Synthetic. What
I
> > found disturbing was that it does not meet API ILSAC GF-4 Certification
> > while Castrol Syntec does. I believe Mobile 1 SuperSyn does meet these
> > specs. At any rate can you tell me the reason for this?
> >
> > I am considering Castrol Syntec a try for my next change which does
meet
> > the GF-4 specs.
> >
> > Or does it not really make that much difference?
> >
> > 2001 Jeep Wrangler Sport 4L 6 cyl w/ 23K miles & I have been pleased w/
the
> > performance of Mobile 1. The manual calls for 10W30 oil.
> >
> > Thank you,
> > Campbell C Freeman
> > Columbia, SC