POE Ester Oil with UV Dye | Quart | HVAC & Refrigerant Compressor Lubricant — Refrigerant Inc

POE Ester Oil with UV Dye — Quart

Polyolester (POE) compressor lubricant with UV leak detection dye pre-blended in — a quart of two essential HVAC service products in one bottle. POE oil is the required lubricant for systems running HFC and HCFC refrigerants including R410A, R404A, R407C, R134a, R22 retrofits, and most other modern refrigerants. The pre-mixed UV dye lets you check for leaks under a UV light during and after service without injecting dye separately.

Specifications

• Type: Polyolester (POE) synthetic compressor oil
• Size: 1 quart (32 oz)
• UV dye: Pre-blended — no separate injection needed
• Compatible refrigerants: R410A, R404A, R407C, R134a, R22 retrofit refrigerants (R438A, R422D, R422B, RS-44b), and most HFC/HCFC blends

Why POE Oil?

POE oil is hygroscopic (absorbs moisture) but offers superior miscibility with HFC and HCFC refrigerants compared to mineral or alkylbenzene oil. HFC refrigerants will not properly circulate and return mineral oil through the system — POE is required to maintain compressor lubrication. When converting an R22 system to an HFC retrofit refrigerant, replacing mineral oil with POE is recommended for long-term compressor health.

Why UV Dye Pre-Mixed?

Pre-blending UV dye into the oil saves a service step. When you add oil during a recharge or retrofit, the dye goes in automatically — no separate UV dye injection kit needed. Future leak checks with a UV light will reveal any leak points as a bright yellow-green glow.

Frequently Asked Questions

Is POE oil compatible with R22?
POE oil is used in R22 retrofit situations — when converting to HFC alternatives like R438A (MO99) or RS-44b. Original R22 systems run on mineral or alkylbenzene oil. If keeping a system on R22, mineral oil is typically fine.

How much oil do I add during a recharge?
Follow the equipment manufacturer's specification. Typically 1–2 oz per pound of refrigerant removed is a common guideline, but always refer to the system's service manual for the exact amount.