MObil 7500 7500 miles 2002 4 cyl Camry

[GregH]

Baaaad report. All not reported are 0.
Fe 14
PB 705
Sn 1
Al 4
Si 18
Na 216
K 1
Mo 115
B 25
Ca 2071
Mg 11
P 668
Sb 2
Zn 798
Visc 100 C 9.7
Oil was 5w30 as new.
Neg antifreeze and Neg Fuel Dilution!
Me thinks a new sample needs pulling after checking the intake plumbing. What thinks the MOB? With SChaeffers I had a stellar report at 6500, but I don't think the oil is the issue here?
Thanks
GregH

 

[jason07-1zzfe]

What in the world? ! That is the highest lead value ever. What lab was that? I would be questioning them. Yeah Si is slightly elevated but lead is insane. I would not trust results just yet. Oh yeah were's the Antimony Carpy talked about?

 

[bigpaulo]

Greg, if those Pb levels are real, you've got a *major* problem. Did they test for antifreeze?

Perhaps more indicative of the real problem, those are crazy high Na (sodium) values... I find it hard to believe Na would be so high without antifreeze being detected... Might have a gasket leaking coolant into your oil, that could certainly affect bearing wear. Get your coolant system pressure tested ASAP.

Do another UOA on a short OCI (1000 to 2000 miles), same oil and filter combo... if there is residual high lead in the oil that didn't drain from your last oil change, and/or if you engine is still throwing off lead, you'll see it.

Could be lab error. Chances are you don't have another sample from the same oil change interval you could get the lab to retest, eh?

[ May 18, 2005, 10:02 AM: Message edited by: bigpaulo ]

 

[jason07-1zzfe]

Na is in M7500

 

[haley10]

BigPaulo, if you look at the voa on Clean 7500, the Sodium NA is entirely normal.

This oil makes for a difficult read.

I don't have a clue about the lead.

That does not show in the voa. It's zero.

 

[bigpaulo]

Dang! Guess I'm not up on my Mobil Clean 7500 VOAs! That's really high Na! What in the world was EXM thinking? What additive in oil has such high Na levels?

Either way, my advice about the short OCI and UOA still stands.

 

[haley10]

quote:

---

Originally posted by Jason Troxell:
What in the world? ! That is the highest lead value ever. What lab was that? I would be questioning them. Yeah Si is slightly elevated but lead is insane. I would not trust results just yet. Oh yeah were's the Antimony Carpy talked about?

---

Sb = 2

 

[haley10]

GregH, did you use any additives or use gasoline stored in a galvanized container? I doubt you could have found leaded gasoline. Use an octane boosters etc?

 

[Cutehumor]

This is exactly what I was talking about the high sodium in the VOA's of this stuff. if lead or some issue is high, how do you know if it's a coolant leak. coolant reservoir could be the same to the naked eye. with lead that high, the lab should have rerun the sample to make sure it is correct. if this is oilguard, they suck.

 

[bigpaulo]

Someone recently posted a UOA where they used a Torco fuel additive and showed Pb in the hundreds... yeah, possible it's coming from a fuel additive.

 

[jason07-1zzfe]

quote:

---

Originally posted by haley10:

quote:

---

Originally posted by Jason Troxell:
What in the world? ! That is the highest lead value ever. What lab was that? I would be questioning them. Yeah Si is slightly elevated but lead is insane. I would not trust results just yet. Oh yeah were's the Antimony Carpy talked about?

---

Sb = 2

---

2ppm, are you kidding me? That is nowhere near the levels Molakule stated in the past are typical. Plus Carpy said "and lots of it". 2ppm could be noise. It may not even be there even at 2ppm.

 

[jason07-1zzfe]

Ok since it is Butler and especially since they retested I would believe the lead. Maybe he did use a fuel additive? Where are you, you can't drop a bomb like this and leave.

But I tended not to think so...who would use race gas or some octane boost racing additive in a 4cyl Camry?!?

 

[haley10]

Thanks Stinkman and Jason. Just noise. I understand. Guess it has antimony like his confirmation of GC being GPIII.

Just trying to learn something here.

 

[Stinky Peterson]

Oil formulas change all the time and in most cases no one knows. Molakule wouldn't say something that wasn't true at the time.

 

[GregH]

Jason, I am crying , over the lead, that is where I am at. I used no additives at all. Tried not to contaminate sample. Have no idea, Terry's services may be used on this one.
GregH

 

[TooSlick]

What was the concentration of copper (Cu) in this analysis and what was the EOT, total base number? What were the levels of sulphation, oxidation and nitration? I believe Butler Labs tests for those as part of their normal FTIR analysis....

If you fully depleted the additive package and the oil became corrosive, it is easy to get high Pb levels. However you would not see this high a level unless you had a main and/or rod bearing about to fail very soon!

Please re-post the Pb/Cu/Sn levels for the Schaeffers analysis....

 

[Stinky Peterson]

TBN = 3.0, don't know what it is new but this seems a little on the low side. Of course it does have 7500 miles.

Cu = 0

Trace of water = no FTIR

You guys are making me do a lot of extra work

IMHO there is no evidence to support an imminent failure or even abnormal wear for that matter. We have only one thing that is outta whack and that's lead. No other bearing elements are high.

 

[T-Keith]

Considering the oil has been run for the recomended OCI 3.0 TBN shouldn't be bad right?

I'd say give Terry a call if anyone could figure it out it would be him.

-T

 

[BlazerLT]

3 is fine.

1 and lower is not good.

There was lots of active additive left.

I gotta feeling that this is a contaminated sample.

Shouldn't there be other metals high along with the lead of the bearings were going out?

 

[oilyriser]

If it's not corrosion or a bad bearing, maybe some leaded gas made its was through the wrong distribution channels. Is there any way to test the fuel in the tank?

There would be lead residue in the tailpipe if leaded gas had gone through the engine. Maybe that can be tested.