STRATA X3
Transformer Oil.
Type II naphthenic mineral oil for utilities, substations and transformer service providers. Drums and totes ship same day from Jackson, MS. Tanker loads can arrive in as little as 4 days.

Drum to
Tanker.
Order what the job needs. Drums and totes have no minimum order. Pick up in Jackson, or we ship by hotshot or LTL freight.
- 01 / Drums
Drums
55 galIn stock and ready to ship the same day. No minimum order.
Same dayQuote → - 02 / Totes
Totes
275 gal IBCKept in stock and ready to ship the same day. Pickup, hotshot or LTL freight. No minimum order.
Same dayQuote → - 03 / Tanker trucks
Tanker Trucks
3,000 gal minimumTanker loads can be delivered in as little as 4 days after you order.
As little as 4 daysQuote → - 04 / Tanker cars
Tanker Cars
Bulk fillsCall 601-912-3512 or send the quote form for tanker car deliveries.
Call for detailsQuote →
Built for the
Power Industry.

- 01Fast, flexible delivery
Drums, totes or full tanker loads, including weekend and outage-window scheduling.
- 02Utility-grade electrical performance
High dielectric strength, low moisture content and non-corrosive sulfur for dependable insulation.
- 03Oxidation stability
Low sludge formation, a strong inhibitor package and long service life.
- 04Clean, consistent supply
New oil, sourced, refined and blended in the USA. PCB-free and never reclaimed or reprocessed.
- 05Pricing at any volume
From a single drum to full tanker programs.
Reliable oil. Fast logistics. No downtime compromises.
By the
Numbers.
STRATA X3 meets ASTM D3487 for mineral insulating oil used in electrical apparatus. Full test data is in the TDS.
| Property | ASTM | Limit | Typical |
|---|---|---|---|
| Dielectric breakdown, disk electrodes | D877 | ≥ 30 kV | 40 kV |
| Dielectric breakdown, 2.03 mm gap | D1816 | ≥ 35 kV | 60 kV |
| Impulse breakdown, 25.4 mm gap | D3300 | ≥ 145 kV | 300 kV |
| Water content | D1533 | ≤ 35 ppm | 12 ppm |
| Power factor at 25°C | D924 | ≤ 0.050% | 0.006% |
| Power factor at 100°C | D924 | ≤ 0.30% | 0.07% |
| Interfacial tension | D971 | ≥ 40 dynes/cm | 51 dynes/cm |
| Oxidation inhibitor content | D2668 | ≤ 0.30% (m) | 0.28% (m) |
| Oxidation stability, RPVOT | D2112 | ≥ 195 | 265 |
| Oxidation stability, 164 hr sludge | D2440 | ≤ 0.20% (m) | 0.01% (m) |
| Corrosive sulfur | D1275 B | Non-corrosive | Non-corrosive |
| Gassing tendency | D2300 | ≤ 30 µL/min | 18 µL/min |
| Flash point, COC | D92 | ≥ 145°C | 154°C / 309°F |
| Pour point | D97 | ≤ −40°C | −62°C / −80°F |
| Viscosity at 40°C | D445 | ≤ 12.0 cSt | 9.21 cSt |
| PCB content | D4059 | ≤ 1 ppm | < 1 ppm |
Typical values from the STRATA X3 Technical Data Sheet (product code 213215, revised 2018-08-16). Typical values are not a specification.
Quote
your oil.
Tell us how many gallons you need. We’ll confirm packaging, freight and timing.
- Drums55 gal · in stock · no minimum
- Totes275 gal · in stock · no minimum
- Tankers3,000 gal minimum · as little as 4 days











- DAVIS-MONTHANAir Force Base
- FAIRCHILDAir Force Base


Oil
Answers.
Call the team for stock and delivery timing, or email sales@bearpowersolutions.com.
Call 601-912-3512What is STRATA X3?
New Type II naphthenic mineral insulating oil that meets ASTM D3487. It is PCB-free and never reclaimed or reprocessed.
Is there a minimum order?
No minimum on 55-gallon drums or 275-gallon totes. Tanker truck loads have a 3,000-gallon minimum.
How fast can you deliver?
Drums and totes are in stock and ready to ship the same day. Tanker loads can be delivered in as little as 4 days after you order.
How does it ship?
Pick up in Jackson, MS, or we ship drums and totes by hotshot or LTL freight. Bulk orders go by tanker truck or tanker car. We ship nationwide.
Is Type II oil inhibited?
Yes. ASTM D3487 Type II oil contains an oxidation inhibitor up to 0.30% by mass. STRATA X3 tests at 0.28% typical.
Where are the data sheets?
Download the SDS and TDS. Drum and tote listings are under Mineral Oil.
We stock
those too.
Pad-mount, pole-mount, substation and dry-type units from 15 kVA to 200 MVA, with hundreds in stock.

