Auto-RX 1k with 8k Mobil 1

[VaderSS]

This run has been very odd. As I said before. The oil cooler was replaced, so it is really not a good run at all for basing any decisions on. It's more of a discussion point than anything else.

Here is another AutoRx analysis I did. This one more inline with what I'd expect.
http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=000335

 

[VaderSS]

On the 0% oxidation. Several of the analysis I've seen involving M1 0W40 have had this result, and this one is confirmation of the previous analysis of the same oil, so I have to say, it's not an anomaly.

 

[Patman]

Has it been a cold winter down your way too? That might account for most of the iron.

 

[VaderSS]

Not cold by your standards,

but cold to me.

 

[Al]

Shaeffers always has 0% for the oxidation.

Hard to tell what is going on because of the AutoRx. But I would check the intake/air filter.

 

[VaderSS]

1996 Chevrolet Impala SS Total miles 62147
miles on oil 8147 (35% Houston city traffic 65% highway 80-90)
Change oil light on about 1k earlier

Mobil 1 0W40 SuperSyn SL
Mobil 1 M201 filter

Consumption 1.5 qt, 1 pint from normal usage, 1 pint from replacing radiator(new oil cooler included)

Added AutoRX and .75 Qt of Mobil 1 0W40 at 7123 miles.
Filter was not replaced.


Schaeffer's Analysis

code:

---

Copper 15 8

Iron 133 67

Chromium 4 2

Aluminum 8 4

Lead 98 38

Moly 116 96

Phosphorus 966 1006

Zinc 1145 1128

Magneseum 55 50

Calcium 3751 3484

AntiFreeze .0 .0

Fuel Dilut N N

H20 .0 .0

Silicon 57 38 0

Vis Cst 14.08 14.22 14.66

SAE ISO 40W 40W

Sulphur 19% 65%

Oxidation 0% 0%

Nitration 36% 32%

---

This is probably a worst case scenario as the oil was pretty contaminated to begin with, and I'd guess the filter was probably clogged as well.

Interesting results to say the least...

I'm getting pretty close to oil change time for the follow up Mobil Drive Clean 5W30. I am interested in what that will show.

 

[Pablo]

Please explain the columns. (Universal averages?)

The numbers look not so good. Cleaning effects?

0% oxidation?

 

[Greg]

why do the columns have no labels...

 

[VaderSS]

Sorry, the first column is for this analysis. The second is the same oil prior to the addition of the Auto-RX.

Go here for more info on that analysis.
http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=000263#000000

 

[VaderSS]

The 0W40 is the only one I've had so far with a 0%.

I've got 3k on the Mobil drive clean. Guess I'll pull a sample sometime.

 

[TooSlick]

Vadar,

The iron and lead levels in this last analysis are very high ...your chrome level as also doubled, which leads me to suspect a leak in the intake system. I'd take a careful look at all the intake plumbing downsteam from the air filter as well as examine the air filter housing.

It looks at first glance like you are grinding this engine apart.

TS

 

[MolaKule]

Vader,

Why go down to a dino 5W30 when your wear metals seem dangerously high? I wouldn't go lower than a 10W30 on 3-4k intervals with those results.

Is there an intake problem that is raising the silicon levels?

The moly levels are elevated becuase your ring wear is way up.

 

[jason07-1zzfe]

Wow I did not notice that part

. M1 does not have that much moly! I was going to comment on the AF earlier as well, seemed like it was Si causing problems. Didn't you just switch AF to some foam one? If all the possible leak paths are ok, I'd get that sucker out, ASAP. Is it supposed to be oiled? Was it preoiled if so? Your engine is being internally sandblasted!!

 

[VaderSS]

The foam filter was not in place for this interval. The majority of this interval was using a Purolator filter and no indication of a filter leak was apparent. I spent some time this weekend looking for other places where a leak could be present and was unsuccessful.

I went to dino oil because that is recommended after an Auto-RX treatment.

As I said before, I need another analysis to see if this trend continues.