The 5 Best 404 a Compressor oils (2023 reviews)

It is a quality and solution-driven manufacturer of specialty lubricants for a variety of industrial and automotive markets worldwide. It provides excellent resistance to moisture. The oil is good quality and the oil fluoresces under UV light quite well. It's best to add the dye/oil when the system is under a vacuum and you need some type of tool to add the oil.

The pag oil contains all you need. It is easy to use and faster than mixing the oil and dye separately.

Why We Like This:

46 viscosity high performance synthetic pag for r134a systems provides excellent resistance to moisture
Good brand reputation

Best Runner up: TRIAX 404 a Compressor Oil

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The triax 404 a compressor oil is long-lasting, rigid and fits well with your regular usage like a dream. This fluid is NON-DETERGENT, full synthetic premium air compressor and power tool lubricant designed for most screw, rotary, vane and reciprocating air compressors in both regular and severe service applications. It features outstanding high temperature viscosity and shear stability, dramatically reducing wear in continuous operation settings and in high ambient temperatures. It offers both high temp continuous operation capabilities and arctic grade. It provides up to 20, 000 hours of fluid life.

This product features an exceptional quality blend of synthetic base oils and top tier additive chemistry to facilitate outstanding, long term performance and protection for air compressors. The multi viscosity keeps fluid requirements at a minimum eliminating the need for lower or higher viscosity oils due to temperature range.

Why We Like This:

Dramatically prolongs component life far beyond ordinary lubricants
Exceptional performance in reciprocal, vane, rotary and screw air compressors
Very low pour point for unhindered performance in temperatures down to

Best For vacuum pump: TSI Supercool electric Compressor

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This oil is for hybrid cars, due to the high voltage in these cars and electric compressor. It is a quality and solution-driven manufacturer of specialty lubricants for a variety of industrial and automotive markets worldwide. The High dielectric protection formula has excellent resistivity to potential electrical current leakage in high voltage hybrid A/C systems.

This product requires that you use ALL NEW air conditioning service tools or tools that have been used only with HYBRID cars or cars with electric compressors using hybrid 'dielectric" compressor oil. There are also hand turn oil injectors. This oil is non-conductive.

Why We Like This:

Synthetic lubricant specially formulated for electric hybrid air conditioning compressors
Proprietary formula contains conditioners, inhibitors and anti-wear agents
Must have for hybrid ac repair
Easier to add to nonpressurized system

Best with most common Refrigeration materials: RED TEK 404 a Compressor Oil

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The red tek 404 a compressor oil's material feels more premium than its price would suggest. The RED TEK OilCharge, an air conditioning synthetic refrigeration oil from Thermofluid Technologies, is a formulated lubricant designed to be compatible with R12 and R134a lubricants. It's compatible with most common refrigeration materials and lubricants including r134a, r12, metal components, mineral and synthetic pag lubricants, seals, gaskets, hoses, compressors, and o-rings. It helps the environment by reducing oil changes and extending equipment life.

Why We Like This:

Good investment for long term
New and hot release

Best For AC Compressor: ACDELCO 404 a Compressor Oil

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The acdelco 404 a compressor oil is satisfactory and appropriate and fits well with your daily usage. ACDelco offers a full range of oils, fluids, and vehicle care products to protect, enhance, and maintain your automobile. From adhesives, sealants, and cleaners to lubricants, waxes, and paints, ACDelco has all you need to keep your gm or non-gm vehicle looking and performing great. It is manufactured to meet expectations for fit, form and function, offering high quality and great value. It is formulated for lubricity and wear protection. It is designed for chemical, thermal, and hydrolytic stability.

Why We Like This:

High-quality formula designed for chemical, thermal, and hydrolytic stability
Fully synthetic compressor oil specially formulated for lubricity and wear protection
Chemically engineered for miscibility with ozone-friendly refrigerants