f250 ,Schaeffers 15-40, 8.2 k on oil.

[salesrep]

Schaeffers Supreme 7000 15-40. Ford F 250 6.0 Heavy towing consistently.
1St column has 4.5k on oil, the 2nd column has 8.2k. oil was changed on both samples. Total miles on vehicle is 67,707

copper
3,6
iron 41,56
chrom 3,4
alum 7,9
lead7,28
moly 33,293
phos 1323,1487
zinc 1445,1659
mag 721,226
calcium2074,3785
silicon 7,8
visc 12.50, 13.02
sulfur 18,13
oxi 0,5
nit 8,7
soot 0,0
anti,fuel water all nil.

 

[pp_rp]

Why the big jump in moly?

 

[salesrep]

I'd noticed that as well. I'm thinking either lab error, sample error, or moly got all used up doing its job adhering to the metal.

 

[allan5oh]

big jump in lead, other then that it looks good.

 

[salesrep]

Still well under control, wouldn't ya say?

 

[pp_rp]

Quote:

---

Still well under control, wouldn't ya say?

---

Ya, I would say. O.K there.
Schaeffer's is -

 

[allan5oh]

Quote:

---

Still well under control, wouldn't ya say?

---

honestly, I wouldn't know. I'd have to compare to many other UOA's from this exact engine.

 

[salesrep]

"honestly, I wouldn't know. I'd have to compare to many other UOA's from this exact engine."
I suppose if you wanted to compare motor oils, but from an engine stand point with this oil, at this time, with this drain interval, the iron is at a comfortable level.

 

[allan5oh]

I was commenting about the lead. Not even a doubling of oil interval, yet the lead went from 7 to 28, quadrupling.

If anything, the iron looks fantastic. Didn't increase much at all.

 

[Pablo]

Relatively speaking, Pb looks a bit high - probably lugged it good while towing, which is standard for a diesel.

 

[salesrep]

my bad.
lead still in decent shape. Next sample or two will tell us more.

 

[pp_rp]

Lead level is just fine. Pablo.

 

[snoboy]

Quote:

---

Lead level is just fine. Pablo.

---

I beg to differ. 28ppm is way, way high even for 8.2k on a 6.0. I ran rotella 5w40 for 9400 miles in my 6.0, showed 10ppm of PB which I might add is the highest PB my 6.0 has ever shown single digits at 6000miles is normal. I think you had a dirt streak on a bearing or something. The moly and more than 1 on your chrome plus 50+ iron. I know I'd be ----ed. It aint the oil but something didn't go right on that fill. Maybe like sales rep said an error at the lab.

Pb

Pb

Pb
snoboy

 

[allan5oh]

lead is usually bearings right?

 

[snoboy]

Yes