VOA Amsoil 75W-140 Severe Gear Oil

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Enjoy!

Blackstone comments:

No metal was present and the additives are pretty standard for a gear lube. The viscosity was correct for 75W/140. This oil contains a little silicon. That normally shows dirt, but here it's an anti-foam additive. No moisture or insolubles showed up. The TAN was 3.1, so the oil starts out with a little acidity due to all of the phosphorus additive present. In any case, this is serviceable oil.

Code:
Oil Brand/Type: Amsoil

Oil Viscosity: 75W-140

API Service: GL-5

Lab: BLKST



Date: 07/26/2012



Aluminum: 0

Chromium 0

Iron: 0

Copper: 0

Lead: 0

Tin: 0

Molybdenum: 0

Nickel: 0

Manganese: 0

Silver: 0

Titanium: 0

Potassium: 0

Boron: 99

Silicon: 11

Sodium: 0

Calcium: 3

Magnesium: 0

Phosphorus: 781

Zinc: 13

Barium: 0





SUS Viscosity @ 210°F 126.1

cSt Viscosity @ 100°C 26.35

Flashpoint in °F 390





Fuel % --

Antifreeze % --

Water % 0.0

Insolubles % 0.0

TBN N/A

TAN 3.1
 
Thanks for getting the information for us!
thumbsup2.gif
 
What about the amount of sulfur in modern (since 2010..2013) AMSOIL Severe Gear (75W-90 or 75W-110 or 75W-140)?
In VOA or UOA?
 
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Only 781ppm phosphorus!!! (Old Amsoil Severe gear had 1300ppm phosphorus)
Is this real GL-5 oil?
 
Blackstone needs to re-calibrate again. The P is way low. Some people don't understand measuring P can be difficult, and a single VOA is not evidence of a formula change.
 
Originally Posted By: Izb
What about the amount of sulfur in modern (since 2010..2013) AMSOIL Severe Gear (75W-90 or 75W-110 or 75W-140)?
In VOA or UOA?


What about sulfur content?

You could always send in your own Amsoil sample and pay an extra $25 for the extra sulfur analysis.
 
Originally Posted By: Izb
I have done it. 2% of S


That appears to be 4X too high.

Can you post your complete analysis results?
 
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