CAT 3126, Schaeffer 7k 15W-40, 165 hrs (2 years)

[REDDOG]

Here's another for you, Jim Allen!

Caterpillar 3126, fire engine service

First run on Schaeffer's Supreme 7000 15W-40 CJ-4

1080 hrs on unit, 165 hrs and 2 years on oil.

Napa Gold oil filter

No make up oil.

Analysis by Polaris Labs

Code:


Current test 104 hrs New oil



Fe 13 7 1

Cr 0 0 0

Ni 0 0 0

Al 0 1 0

Cu 1 1 0

Pb 0 0 0

Sn 0 0 0

Cd 0 0 0

Ag 0 0 0

V 0 0 0

Si 5 8 16

Na 6 5 9

K 0 0 0

Ti 0 0 0

Mo 331 272 360

Sb 285 258 350

Mn 0 0 0

Li 0 0 0

B 4 4 1

Mg 792 642 862

Ca 1393 1181 1349

Ba 0 0 1

P 1043 895 1223

Z 1241 1069 1417

Fuel
Soot 0.4%

Water
Visc. @ 100C

14.1 14.2 15.6

TAN 2.89 2.65 3.00

TBN 6.35 8.63 9.39

OX 8 9 8

NIT 11 11 10

Current test 104 hrs New oil




Heading into year 3!

Thanks,

REDDOG

 

[gtoracer]

So this oil is still in service?

 

[hate2work]

Funny how so many things went down from VO and back up between 104 hrs and 165 hrs, without any make-up oil.

Is that just testing variances?

 

[dnewton3]

Love to see these extended OCIs!

Why not continue to use it? Look at the numbers. Still a viable fluid, that's for sure. Add-pack decent; contamination low; vis in good shape. What's not to like?

Yet MORE evidence that oil has no idea of how old it is ...

 

[chubbs1]

That is an awesome UOA! I have yet to see an oil with so much Antimony. I guess you sure can't complain, it must be a great AW/Additive!

 

[REDDOG]

Oil and filter are still in service and I'll retest at the 3 year mark to see where we are. The duty profile for this engine has changed-it is now a second engine for fire calls but still primary rescue for tools, jaws, etc.. It will probably accumulate 50-60 hrs a year from now on, I'm guessing.

As far as variances go given the spread of time between these samples I would expect some variances especially in the additive metals which tend to be less repeatable anyway. Wear metals have a much tighter trend. I'm comfortable leaving the oil in.

Thanks, REDDOG

 

[Jim Allen]

Thanks REDDOG! I'll add it to my evidence locker. Are you gonna try for four if three is OK? I had to shut down mine at three due to soot but with better filtration, I might have tried for more. This is an especially awesome result considering there was no makeup oil. My three year had several makeup quarts... but then it's a tired (8300 hour) tractor that was (previously) neglected and lives in a barn.

 

[REDDOG]

As long as everything looks good I'll keep it in service. Even at the 4 year mark it would probably have between 250 and 300 hrs on it.

 

[REDDOG]

Also, though this is a bit OT, I'd sure like to have more of these 2003 era CAT engines! This has been a great unit and I honestly hate all the emissions crud on the newer diesels.