PAG 46 R134a A/C Oil with UV Dye – 8 oz, ISO VG 46, Leak Detection

The HCPRO Performance PAG 46 UV is a light-viscosity PAG compressor oil with fluorescent leak-detection dye built in — for R-134a systems that call for ISO VG 46 and a leak check in the same step.

Key features

• ISO VG 46 PAG — matched to lighter-duty R-134a compressors
• Built-in UV dye — meets SAE J2297 leak-detection standards
• Import and compact fit — many Asian imports, compact cars and certain trucks
• Low pour point — -42°F, 442°F flash point
• 8 oz / 237 mL — single, 6-pack or 12-pack

Who this oil is for

Auto A/C techs servicing imports and compact vehicles where OEM specifies PAG 46. Mobile mechanics doing recharges on light-duty applications. Fleet shops servicing import inventories.

When to use it

During R-134a recharge when the system needs PAG 46 viscosity AND fluorescent leak detection in one step. Diagnostic top-off: 1–2 oz per circuit. Full compressor replacement: 4–8 oz per OEM spec. Inspect with any UV-A light (365–400 nm) — leaks glow fluorescent green-yellow.

Why grade-specific PAG 46 UV vs Universal UV

Specific viscosity match means tighter compressor clearance, longer life, exact OEM warranty compliance. Use Universal UV when you don't know the system viscosity; use PAG 46 UV when the OEM service manual explicitly specifies VG 46. Same UV chemistry, more precise spec match.

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