PAG 150 R134a A/C Oil with UV Dye – 8 oz, ISO VG 150, Leak Detection

The HCPRO Performance PAG 150 UV is a high-viscosity PAG compressor oil with fluorescent leak-detection dye built in — for heavy-duty R-134a systems where lighter grades won't hold film strength.

Key features

• ISO VG 150 PAG — film strength for trucks and high-pressure R-134a systems
• Built-in UV dye — meets SAE J2297 leak-detection standards
• One-step service — lubricate and trace the leak together
• Heavy-duty fit — trucks, fleets, commercial and light HVAC on R-134a
• 8 oz / 237 mL — single, 6-pack or 12-pack

Who this oil is for

Heavy-duty truck A/C technicians. Fleet maintenance teams servicing commercial vehicles. Auto A/C techs working on full-size SUVs and pickups where OEMs spec the heavier viscosity. Service techs on certain commercial refrigeration units running R-134a with PAG 150.

When to use it

During R-134a recharge when the OEM calls for PAG 150 AND fluorescent leak detection is needed. Diagnostic top-off: 1–2 oz per circuit. Full compressor replacement: 4–8 oz per OEM spec (heavy-duty systems often run higher capacities — check the manual). Inspect with UV-A light (365–400 nm).

Why PAG 150 UV vs PAG 100 UV or Universal UV

Heavy-duty compressors need heavier viscosity to maintain oil film under high pressure and high-load conditions. Running PAG 100 in a PAG 150 system causes premature compressor wear under load; running PAG 150 in a lighter system causes drag. When the OEM calls for 150, use 150.

Single 8 oz bottle, moisture-sealed. Manufactured in the USA to OEM compressor lubricant performance standards.