TSI Supercool Synthetic PAG A/C Oil for R134a – 1 Quart with U/V Dye, Anti-Wear Protection

TSI Supercool 27897 is a premium synthetic PAG lubricant formulated for R134a automotive A/C systems and includes U/V dye for leak detection.

Designed for aftermarket air-conditioning service, this 1-quart bottle of synthetic PAG oil balances moisture resistance with wear protection to help keep compressors running smoothly. It contains specialized additives—conditioners, inhibitors and anti-wear agents—that improve lubricity and help protect internal components. The built-in U/V dye simplifies leak tracing with compatible inspection lights, and the formula meets OEM performance expectations for many modern systems that use R134a refrigerant.

How does this oil protect my A/C compressor?

The formulation reduces friction and helps prevent premature wear by providing a stable lubricating film on moving parts. Corrosion and deposit inhibitors help maintain clean internal surfaces, while moisture resistance lowers the risk of harmful hydrolysis in the system.

• Anti-wear agents to minimize metal-to-metal contact
• Conditioners that stabilize seals and hoses
• Inhibitors to reduce corrosion and deposits
• Formulated to resist moisture uptake for longer oil life

Is this oil compatible with my vehicle's refrigerant?

This PAG oil is specifically formulated for systems that use R134a refrigerant and is intended for aftermarket service. It is not designed for R1234yf systems or older refrigerants; always verify your vehicle’s refrigerant type before adding oil to the system.

• Made for R134a-equipped automotive A/C systems
• Not suitable for R1234yf or other refrigerants
• Use only when servicing the system during repair or component replacement

Why is the U/V dye useful and how do I use it?

The integrated U/V dye makes visual leak detection quicker when used with a UV light and inspection goggles. Add the dye-containing oil during routine service or when replacing components, then scan suspicious areas with a UV lamp to reveal dye traces at leak points.

• Built-in U/V dye highlights refrigerant oil escape under UV light
• Compatible with standard automotive UV inspection lamps
• Add during service to help locate slow or hidden leaks

What maintenance or safety steps should I follow when using this product?

Handle automotive refrigerant oils with gloves and eye protection, and avoid skin contact and inhalation. Drain and dispose of any used oil according to local regulations, and ensure system evacuation and recharge are performed with proper service equipment by a trained technician.

• Wear gloves and eye protection during handling
• Follow local disposal rules for used oil and refrigerant residues
• Have system evacuation and recharge done by qualified personnel

Who is this for? TSI Supercool 27897 is aimed at professional technicians and experienced DIYers who service R134a automotive A/C systems and need a high-performance synthetic PAG oil with leak-detecting dye. If you require a lubricant that balances moisture resistance, anti-wear protection and built-in UV traceability for troubleshooting and repairs, this product is a practical choice. It’s not appropriate for systems using refrigerants other than R134a or for applications that require mineral oil or alternative lubricants.