Tulstar’s premium transformer oils (T-Oils) are formulated for maximum dielectric strength, oxidation stability, and heat transfer efficiency in electrical transformers and power distribution equipment.

Each 5-gallon pail is pre-filtered and tested to ASTM standards, ensuring optimal performance and long-term reliability for industrial and utility applications.

These oils are suitable for use in:

Distribution and power transformers
Oil-filled circuit breakers
Switchgear and load tap changers
Electrical testing environments

Key Features

Dielectric Strength: Exceeds 35 kV (ASTM D877)
Moisture Content: ≤ 35 ppm (ASTM D1533)
Low Pour Point: Reliable in cold-weather operation
High Oxidation Resistance: Extended fluid life and reduced sludge formation
Non-corrosive: Meets ASTM D1275 corrosion test
Compatibility: Compatible with most mineral-oil-based transformer oils

Packaging Options

5-Gallon Pail (19 L) – Stocked Item
55-Gallon Drum – Available Upon Request
Bulk Totes & Tanker Loads – Contact for Quote

🧾 Specifications (Typical)

Property	Method	Typical Value
Dielectric Breakdown Voltage	ASTM D877	> 35 kV
Viscosity @ 40°C	ASTM D445	8.0 cSt
Flash Point	ASTM D92	145 °C
Pour Point	ASTM D97	−40 °C
Neutralization Number	ASTM D974	0.01 mg KOH/g

🛒 Ordering Information

Price: Inquire for current quote
Minimum Order: 1 Pail (5 gal)
Shipping: Ships from Tulsa, OK – Hazmat-certified fulfillment available
Lead Time: 1–3 business days for in-stock quantities

Applications

Power generation facilities
Industrial manufacturing plants
Transformer service & maintenance providers
Utilities and electrical cooperatives

Compliance & Quality

Tulstar transformer oils meet or exceed:

ASTM D3487 (Type I & II)
IEC 60296 (Ed. 5)
ISO 9001:2015 Quality Standards

tulstar

Transformer Oil – Totes (275 Gallon / 330 Gallon)

Transformer Oils – 5 Gallon Pail

Transformer Oils-Request A Bulk Order

Transformer Oils-Request A Bulk Order

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