for the guys that are into recreational oil changing...

sorry buddy, is is fact - i personally did the work that caused that
marking, witnessed the condition of the cam before the work, witnessed
the grit that was stuck on the cam lobes by oil film, and the condition
immediately after start-up - which is just like you see now. i
assembled the motor in spite of the fact that it was going to be damaged
by the grit because i was in a hurry and was thinking i'd get rid of
this motor anyway. all it had to do was last one weekend.

whoops, does that expose your denial and ignorance? [rhetorical]

more bullshit. cam lobes do wear and score, but you can't see this cam
up close like i can, and the fine surface detail is completely different
from simple wear and lubrication failure.

bullshit. the reality is that if you have antifreeze in the coolant,
[which mine never had btw, quite apart from the fact that the cam was
not scored before i gritted it] you interrupt the oil film continuity
and thus the hydrodynamic separation. particularly on cams at low
speeds. but the surface features of such damage are that of scuffing
and surface tearing - classic lube failure. mine is that of hard
particle abrasion - very obvious difference. i'd invite you over to
inspect personally, but i don't think your objective is that of discovery

you really have to learn not to bullshit about stuff you don't know. or
not to deny reality when it's presented to you with history and photo
evidence.

 

<start sarcasm>

You never put antifreeze in the coolant? That's odd. Where do you put
antifreeze?

How does antifreeze in the coolant interrupt the oil film? I could see
that if antifreeze were in the oil, but in the coolant?

</end sarcasm>

Sorry, couldn't resist?

How does antifreeze interrupt the oil film? Does it act like a soap,
dissolving it? I imagine alcohol or hand sanitizer (which 60% ethanol)
does the same thing. Just like soap disrupts the oil film or whatever on
my hands when I wash after checking the oil?

Jeff

 

So what?
I mean, it makes you look like an idiot, but other than that it doesn't
contradict what I said.

In your world everything is simple - simple to the point of being
ridiculous.

Clean and fresh oil will absorb more antifreeze without causing damage
than dirty oil will.

As I said whether or not your story about that particular engine and
that particular cam is factual is quite irrelevant. That picture shows
exactly what damage from mixing a small amount of antifreeze with dirty
engine oil can look like. The particles of dirt that form in the oil can
cause scratch marks that look just exactly like that. Won't happen if
the oil is clean.

You seem to be of the impression that nobody has noticed all the lies
that you have been caught telling. You seem to be laboring under the
impression that you are like the Pope and just because you say it there
will be others who will automatically accept it is true.


A scratched cam lobe is testimony to superior lubrication in a world
where the flying pigs and pink elephants have taken over.

 

well spotted.

it physically breaks it up.

this is how soaps work.
http://chemistry.about.com/od/cleanerchemistry/a/how-soap-cleans.htm

 

eh? can't you just admit the facts? [rhetorical]

yes it does contradict what you said. you were supposing this was
typical lube failure and wear. it's not.

yeah, right - something that contradicts your bullshit supposition and
ignorance is ridiculous...

eh? are you trying to deny your mistake in assuming the wrong wear
mechanism???

it absolutely is relevant. you presumed an entirely different mechanism
than reality. just like your "particle agglomeration" bullshit.

no it doesn't. and to say it does is absolutely ridiculous when you're
working from an out-of-focus photo. it's even more ridiculous when
you've been told the history of how it arose!

bullshit. hard particles don't make it past the filter [ignoring of
course that your "antifreeze agglomeration" doesn't exist]. water
particles however interrupt the oil film and thus the hydrodynamic layer
and allow direct metal-to-metal contact. real freakin' simple.

wow dude, you really have a reality/ignorance problem. and it's sad to
see an individual that can't tell the difference between fact and
bullshit so pathetically cling to their mistakes, fabrications and
delusions.

idiot. the fact that hard particle scratching /has not been worn off/
is testimony. but you're too ignorant of the facts and too
closed-minded to reality to understand that.

 

I was thinking of extending the interval, but when I looked for an oil
change interval in my manual I couldn't find one (!?) Haynes
specifies a 3000 mile interval for both the '96 and '99.

Funny how Mobil doesn't say extended intervals are ok...

I guess I'll just replace oil and filter at 5k...

 

Actually the detergents and dispersants "act like soap" and have the
effect of keeping all sorts of stuff in solution in the oil - including
antifreeze. This works as long as the additives aren't overwhelmed with
too much "stuff".
Acts like soap means its similar but a bit different. In the case of
washing your hands the solvent is the water. Oil is a different type of
solvent, different soap, but the same general idea.

 

yes they do - they specifically give mileages for the following:
clean 5000
clean 7500
m1 extended performance - 15000.

 

Apparently, glycol is even nastier for oil than I suspected:
http://www.machinerylubrication.com/Read/193/oil-glycol.

It chemically reacts with different things, doesn't dissolve well in oil
and makes acid.

Jeff

 

Weird... my Wal Mart Mobil 1 didn't seem to specify. Maybe if I read
the Spanish translation...

Michael

 

yeah, it agglomerates soot particles to Hrc >50 too. not.

 

Incorrect. The only thing I supposed is that you are an idiot. And
everything you say only strengthens that supposition. I specifically
stated i was not supposing anything about the engine. The cause of your
damage is undefined. I was just pointing out that other engines can get
damage that looks just like that. It may surprise you, but scratches
like this on the cam lobes don't only happen when some idiot takes the
head off and pours dirt on it and puts it back together.

Even according to your story. There were hard particles that did damage
before the filter could remove them.

And I didn't say the antifreeze agglomerates. I said the dirt that is
being held in suspension agglomerates as a result of the introduction of
antifreeze into dirty oil.
This isn't that hard a concept to test. just pour a small amount of
antifreeze into our oil about 10 miles before your next oil change.

Yeah well your not the first person ever to call not believing in the
infallibility of the pope a "reality/ignorance problem".

 

look again. all my local's stock at least 4 of the 5 listed here:
http://www.mobiloil.com/USA-English/MotorOil/Oils/Oils.aspx

 

"undefined"???? then you can't read!

looks "just like" a blurry photo, especially when you have been
specifically told its history??? buddy, your analysis skills are a
freakin' joke.

like what??? the ones that show hard particle abrasive marks do. but
you've never seen this stuff up close - you're just making suppositional
statements trying to cover your ignorance.

on a micron scale!!! that is not visible to the naked eye!!! unlike
grit that can be introduced when you have the covers off. clearly
you've never looked at anything like this under a microscope.

oh, so the antifreeze somehow allows these mysteriously large particles
to pass through the filter then??? glad you cleared that up!!!

no, i don't want to disrupt the hydrodynamic layer that lubricates my
moving parts. not that you have a damned clue what you're talking about.

eh? did the pope kick sand onto my cam while i wasn't looking???
fucking ridiculous idiot.

 

You should try the Mobil 1 FAQ Site at
http://www.mobiloil.com/USA-English/MotorOil/Car_Care/AskMobil/AskMobil_Homepage.aspx
or http://tinyurl.com/ygls6rk .

If you follow the product links you can find the Mobil 1 suggeted life
for their products.

Mobil 1 Extended Performance 5W30 says the following: "Provides
outstanding engine protection at oil change intervals of up to 15,000
miles or 1 year, whichever comes first." (from
http://www.mobil.com/USA-English/Lubes/PDS/GLXXENPVLMOMobil_1_Extended_Performance.asp )

The "Standard" Mobil 1 product data sheet doesn't include a life
claim (see
http://www.mobil.com/USA-English/Lubes/PDS/GLXXENPVLMOMobil1_5W-30.asp
). The FAQ at
http://www.mobiloil.com/USA-English/MotorOil/Oils/Mobil_1_Extended_Performance_FAQs.aspx#FAQs3
explains the difference between standard Mobil 1 and Mobil 1 Extended
Performance.

Ed

 

forgot to add:
no, you've clearly never seen this stuff in real life - if you had,
you'd know and understand the very clear differences in appearance. and
if you weren't a retard, you'd not make the mistake of calling a
statement of fact, that the abrasive was introduced to the cam during
surgery, "incorrect".

 

Mr. Bean has a wealth of ignorance about motor oil. It is well known
that coolant contamination can impair dispersancy which leads to drop
out of dirt suspended in the oil.

Here is a quote from the same www.machinerylubrication.com site quoted
above.

 

You are just too dumb to argue with.

So go complain to the guy who posted the photo - he used to think it
was a beautiful photo that was very revealing.

Well you said he did, but i don't remember if you said you were looking
or not.

 

is that "too dumb to bother to read" or "so dumb i think i'll bullshit
about what a guy did to his own freakin' vehicle"???

it /is/ very revealing - if you bother to pay attention and have a
freakin' clue!

you're one of the pope's confidante's? why do i not believe you???

retard.