Compressor Oil (Refrin 4gs/3gs)

Refrin 3GS & 4GS Compressor Oil

A high-performance compressor is only as reliable as the lubricant protecting it. At CoolLabs, we supply Refrin 3GS and 4GS naphthenic mineral oils—the industry standard for technicians who demand superior chemical stability and long-term hardware protection.

Designed to circulate seamlessly with various refrigerants, these oils ensure that your LG, Samsung, Von, or Hisense units remain friction-free and thermally protected, even under the most demanding workloads.

Choosing the Right Grade: 3GS vs. 4GS

To ensure peak efficiency, matching the oil viscosity to your system’s requirements is critical:

• Refrin 3GS: A refined, low-viscosity lubricant engineered specifically for smaller refrigeration units. It offers exceptional fluidity at low temperatures, making it the top choice for domestic fridges and compact freezers where wax-free performance is essential.
• Refrin 4GS: A more robust, higher-viscosity formula designed for larger, heavy-duty compressors. This grade is built to withstand the higher thermal stresses of commercial chest freezers, cold rooms, and high-capacity display units.

Why Professionals Rely on Refrin

Using premium oil isn’t just about maintenance; it’s about preventing catastrophic system failure. Refrin lubricants are favored for:

• Low Floc Point: Prevents wax buildup in expansion valves and capillary tubes, ensuring consistent refrigerant flow.
• Thermal Stability: Resists breaking down or carbonizing under high discharge temperatures, keeping the internal valves of your 1/3 HP or 1/4 HP motors clean.
• Chemical Purity: Formulated to be moisture-free and non-reactive, protecting the internal windings of your compressor from acid formation and corrosion.
• Versatile Compatibility: The perfect companion for systems running on traditional refrigerants that require a mineral oil base.

The CoolLabs Standard

Whether you are performing a routine oil change on an Ex-UK unit or commissioning a brand-new installation, CoolLabs provides the authentic lubricants necessary to maximize equipment lifespan.

By prioritizing the health of your compressor’s internal mechanics, you ensure quieter operation, lower energy consumption, and a significant reduction in service callbacks.