QC Lubricants
7360 Milnor St. Philadelphia, PA 19136
(215) 333-4187
Direct Line

Toll Free
With Extension (800) 887-2436
For Technical Assistance:
Dial Extension 203 for Stan Jakubowski
For Sales:
Dial Extension 211 for Lu Ann Quinn or 224 for Lindsay Romero
Email Lu Ann Quinn  ♦   Email Lindsay Romero


We actively supply a comprehensive line of MIL-SPEC  and commercial lubricants.


Product Shelf Life
Boeing Specs McDonnell Douglas Specs
QC BLU DEF Disel Exhaust Fluid

LHB Industries


Transformer Oils

Transformer Oils

Transformer oil is a highly-refined oil made for high and low temperature stability. Transformer oil's electrical insulating properties are excellent. Transformer oil is used in oil-immersed transformers,  high voltage capacitors, tap changers, fluorescent lamp ballasts, and some switches and circuit breakers. Transformer oils' functions are to electrically insulate, suppress corona and arcing, serve as a coolant, resist oxidation and deposit formation, and more.

For more information on Transformer Oil, or any questions, give us a call, our knowledgeable staff is eager to hear from you.

VV-I-530 Shell Diala AX
Shell Diala S2 ZX-A Oils

Page 1
Page 2
Page 3 MSDS

Electrical insulating oils

Shell Diala S2 ZX-A Oils are electrical insulating fluids, for use in electrical systems where rapid heat transmission and high oxidation stability are required.
They are highly refined naphthenic mineral oils with natural low pour point characteristics.
Shell Diala Oil A is intended for use where normal oxidation resistance is required.


Shell Diala S2 ZX-A Oils are primarily intended for use in:
  • Transformers
  • Circuit breakers
  • Oil-filled switches
  • An insulator and arc extinguishing agent in switchgear and circuit breakers X-ray equipment

Performance Features:

  • Highly resistant to oxidative degradation
  • Resists the formation of oxidation products that can reduce the ability of the oil to insulate and cool electrical windings
  • Rapid heat transfer properties
  • An essential quality in electrical insulating systems
  • Compatible with construction materials
  • Compatible with all common construction materials used in electrical systems.
  • Outstanding low temperature properties without the need for pour point depressants
  • Shell Diala S2 ZX-A Oils do not contain PCB's

Performance Specifications:

Shell Diala Oil A meets the ANSI/ASTM/NEMA Type I requirements without the addition of an oxidation inhibitor.

Health & Safety:

Shell Diala S2 ZX-A Oils are unlikely to present any significant health or safety hazard when properly used in the recommended application, and good standards of industrial and personal hygiene are maintained.

For further guidance on Product Health & Safety refer to the appropriate Shell Product Safety Data Sheet

Storage Precautions:

The critical electrical properties of Shell Diala S2 ZX-A Oils are easily compromised by minute concentrations of contaminants. Typically encountered contaminants include moisture, particulates, fibers and surfactants. It is imperative that electrical insulating oils be kept clean and dry.

It is strongly recommended that storage containers be dedicated for electrical service and include air-tight seals. It is further recommended that electrical insulating oils be stored indoors in climate-controlled environments.

Typical Physical Characteristics

Shell Diala Oil


Kinematic Viscosity

@ 0C cSt

40C cSt

100C cSt




Density @ 15C kg/l


Flash Point C (COC)


Pour Point C


Breakdown Voltage kV


Go to Shell Diala Oil AX Page 2

Do you need custom filling, contract packaging? We specialize in the ability to fill any size containers. Give our customer service a try. We pride ourselves on our specialized service.

Call to place an order or ask a question:

QC Lubricants
7360 Milnor St Philadelphia, PA 19136
(215)333-4187 (800)887-2436
Extension  203 or 211

Please see our "About Us" page for more company information.




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