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Saturday, February 4, 2012

PAO Based Synthetic Multigrade Automotive Gear Oil With Ester.

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Why use synthetic oils in blending automotive gear oil?

Application-related advantages of using synthetic oils over mineral oils:

  • Extended service life, up to 15 times the standard drain interval
  • Cleaner equipment, less varnish, and sludge
  • Extended bearing life
  • Improved seal life
  • Lower repair maintenance
  • Improve fuel efficiency
  • Less in-shop downtime
  • Less oil disposal
Formulation meets SAE J2360 Requirements


% Weight
Ingredients
75W-90
75W-140
Gear Oil Additive Package
6.00
6.00
SpectraSyn 4 (PAO)
-
16.94
SpectraSyn 6 (PAO)
75.83
-
SpectraSyn 100 (PAO)
-
57.04
Infineum C9925
18.13
-
Esterex A32 (esters)

20.00
Defoamant
0.04
0.02

SpectraSyn and Esterex- ExxonMobil PAO and Ester Trademark
Esterex are not available in Europe, Afica and the Middle East
PAO- Polyalphaolefins


PAO bases synthetic automative gear oil show improved resistance to thermal and oxidative degradation compared to petroleum base stock.

Addition of esters to PAO can improve additive solubility and increase polarity of the entire basestock system, which moderates the normal shrinking and hardening tendencies of elastomer seals.

Gear Oil Additive Requirements:
 
  Extreme Pressure
  Dispersant
  Rust Inhibitor
  Corrosion Passivator
  Oxidation Inhibitor*
  Antiwear*
  Friction Modifier*
  Polymer*

* = Not always required.  Application dependent.

See Other Synthetic Fluids Formulations:

   Synthetic Two-Stroke Air-Cooled (Loaw Ash) Oil
   Synthetic Engine Oil S.A.E. 0W40
   Synthetic Hydraulic Fluid ISO VG 68 
   Synthetic Industrial Gear and Circulating Oil ISO VG 220




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