amsoil ATM 10w30, 11k miles w/ TAN

[pb]

http://tinyurl.com/nw6e2c8

apologies, i wanted to create a new thread to include the TAN test just requested.
Code:


OIL ATM ATM ATM ATM UNK

MILES IN USE 11K 8.8k 9.1K 10.6K EST 5K

O&F CHANGED Y Y Y Y Y

MILES 92.9K 65.7k 57K 47.8K 37.3K

MAKEUP OIL 0 0 1 0 0

SAMPLE TAKEN 27-JUN-15 11-JUN-13 20-NOV-12 10-MAY-12 17-NOV-11

LAB OAI OAI OAI OAI OAI



IRON 23 15 13 18 8

CHROMIUM 1 1 0 1 0

NICKEL 1 0 0 2 0

ALUMINUM 7 6 6 7 5

COPPER 8 5 7 4 4

LEAD 0 0 0 1 0

TIN 0 1 0 0 0

CADMIUM 0 0 0 1 1

SILVER 0 0 0 0 0

VANADIUM 0 0 0 0 0

SILICON 16 19 19 16 7

SODIUM 10 9 8 7 5

POTASSIUM 0 0 6 0 0

TITANIUM 0 0 0 0 0

MOLYBDENUM 141 156 146 132 78

ANTIMONY 0 1 1 0 0

MANGANESE 0 0 0 0 0

LITHIUM 0 0 0 0 0

BORON 59 91 52 72 120

MAGNESIUM 16 14 17 24 22

CALCIUM 3455 3417 3398 3266 2516

BARIUM 0 0 0 1 8

PHOSPHOROUS 612 620 653 644 733

ZINC 683 676 732 711 809



WATER 0 0 0 0 0

cSt @ 212ºF 11.1 11.1 11.1 10.7 8.8

FUEL 0 0 0 0 1.1

TAN 4.48 N/R N/R N/R N/R

TBN 3.04 2.88 4.09 3.04 5.44

OXIDATION 58 57 0 49 16

NITRATION 18 17 13 16 21

 

[pb]

and that 0 oxidation should be a 40

 

[Bigdaddyeasy]

Wear metals are fine. It looks good

 

[Festiva_Man]

what is antimony? do those silicon levels concern you or are they normal for that vehicle?

 

[pb]

Originally Posted By: Festiva_Man
what is antimony? do those silicon levels concern you or are they normal for that vehicle?


Quote:

Antimony is a multi-source metal detected with Elemental Analysis by ICP (inductively-coupled plasma), which detects up to 24 metals, measuring less than 10μ in size, that can be present in used oil due to wear, contamination or additives. Multi-Source Metals include molybdenum, antimony, manganese, and lithium.
Possible Sources:
Reciprocating Engines: Alloy Metal in Industrial Babbitt Bearings, Bushings, Tracer in some oils


the silicon wasn't flagged so... draw your own conclusion. truck has been seeing a bit of dirt roads in the past but that has changed since jan. '15. perhaps that's why it was less this past interval.