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HVACR Insights

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Explore refrigeration lubricant knowledge, compressor oil selection tips, system application insights, and HVACR industry updates from the QISHANR team.

September 17th, 2026

POE vs. Mineral Refrigeration Oil for Cooling Systems

September 14th, 2026

Choosing Refrigeration Oil for Hanbell Screw Compressors A Conversation with Ethan Lin

September 9th, 2026

Refrigeration Oil Supplier Support for Compressor Retrofit Projects

September 9th, 2026

EV and Hybrid A/C Compressors: Why They Need POE or EV-Rated Oil Instead of PAG 46

September 8th, 2026

What Refrigeration Oil Does in a Vapor Compression System

September 8th, 2026

Refrigeration Oil for Screw and Scroll Compressors

September 8th, 2026

Wholesale Refrigeration Oil for HVACR Service Stock

September 8th, 2026

PAG 46 vs PAG 100: Which A/C Compressor Oil Does My Vehicle Need?

September 7th, 2026

Can the Same PAG 46 Compressor Oil Be Used for R134a and R1234yf Car A/C Systems?

August 28th, 2026

How Industrial Refrigeration Buyers Can Verify POE Lubricant Compatibility Before Purchase

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