FUCHS RENISO MS 46 is an ISO VG 46 semi-synthetic refrigeration compressor oil made from a special alkylbenzene and highly refined naphthenic mineral oil blend. Its anti-wear additive system is intended for loaded CFC/HCFC compressors, including R22, R502, R401A/B and R402A/B applications.
Buyers sourcing FUCHS RENISO MS 46 refrigeration oil for service stock get a defined ISO VG 46 option for legacy and transition-refrigerant refrigeration systems. This RENISO MS 46 compressor oil combines alkylbenzene refrigerant solubility with an anti-wear package for compressors operating under demanding temperature and load conditions.
For freezer rooms and low-temperature storage systems running R22 or R502, RENISO MS 46 supports the oil requirement recorded for the compressor during planned maintenance and oil changes.
Suitable for service stock used on documented CFC/HCFC commercial refrigeration equipment, from condensing units to walk-in cold-room compressor circuits.
Designed for plant-maintenance work where heavily loaded refrigeration compressors need a semi-synthetic alkylbenzene refrigeration oil at ISO VG 46.
Applicable to heat-pump and air-conditioning systems using the CFC/HCFC refrigerants identified for the RENISO MS series.
Compressor formats: RENISO MS 46 is used in open, semi-hermetic and hermetic refrigeration compressors. Include the compressor model, refrigerant and required quantity with your quote request so the package can be matched to the maintenance job.
| Property | Reference Value | Why It Matters |
|---|---|---|
| Lubricant type | Semi-synthetic special alkylbenzene / naphthenic mineral oil blend | Combines refrigerant-solubility characteristics with an anti-wear additive system. |
| Viscosity grade | ISO VG 46 | Matches maintenance specifications that call for a VG 46 refrigeration compressor oil. |
| Kinematic viscosity at 40°C | 46 mm2/s | Reference viscosity at the standard comparison temperature. |
| Kinematic viscosity at 100°C | 5.5 mm2/s | Useful for high-temperature lubrication comparison. |
| Viscosity index | 35 | Reference value for the product formulation. |
| Pour point | -42°C | Relevant to low-temperature refrigeration service. |
| Flash point, COC | 202°C | Reference handling and formulation property. |
| Water content | 25 mg/kg maximum | Supports moisture-control requirements for refrigeration lubrication. |
| Total acid number | 0.03 mg KOH/g | Reference fresh-oil acidity value. |
| System or Refrigerant | RENISO MS 46 Position | Typical Maintenance Context |
|---|---|---|
| R22 | Primary application | Legacy commercial, industrial, cold-room, heat-pump and air-conditioning compressor service. |
| R502 | Primary application | Low-temperature refrigeration equipment that specifies an ISO VG 46 AB/naphthenic refrigeration oil. |
| R401A / R401B | Transition-refrigerant application | Service and maintenance for chlorine-containing drop-in refrigerant systems. |
| R402A / R402B | Transition-refrigerant application | Compressor lubrication for documented conversion and maintenance work. |
| HFC / HFO systems | Use the specified POE oil family | FUCHS RENISO TRITON SE or SEZ oils are the relevant FUCHS direction where the equipment calls for POE. |
| R717 ammonia / R744 CO2 | Select the dedicated FUCHS series | RENISO K or SYNTH is used for ammonia direction; RENISO C is used for CO2 direction. |
When a technician is servicing an older R22 condensing unit, the key purchasing question is whether the service record calls for an ISO VG 46 alkylbenzene refrigeration oil. RENISO MS 46 is a practical R22 compressor oil to quote when that specification is present.
The 20 L pail shown in the product image suits contractors planning several compressor jobs or a scheduled cold-room shutdown. State the number of circuits and planned charge quantity in the inquiry for pack planning.
For R401 or R402 systems, maintenance teams often need the oil specification recorded alongside the refrigerant conversion. RENISO MS 46 is designed for the R401A/B and R402A/B application set.
Plant buyers can request a quotation with the compressor brand and model, refrigerant, package requirement, quantity and destination to align product supply with the shutdown schedule.
| Product | FUCHS RENISO MS 46 |
| SKU | FUCHS-RENISO-MS46 |
| Oil family | Semi-synthetic alkylbenzene / naphthenic refrigeration compressor oil |
| Viscosity grade | ISO VG 46 |
| Primary refrigerants | R22, R502, R401A/B and R402A/B |
| Reference package | 20 L pail shown in the main product image |
| Other pack sizes | 1 L, 5 L and 205 L options can be quoted by market availability and order requirement. |
For a fast quotation, send the compressor model, refrigerant, required package, quantity, destination and any TDS/SDS document requirement. This lets us return a commercial offer that fits the planned refrigeration service work.
Tell us your compressor application, refrigerant, package size, quantity and destination. Our team will prepare the appropriate quotation and available documentation.
Request RENISO MS 46 QuoteFUCHS RENISO MS 46 is an ISO VG 46 semi-synthetic alkylbenzene/naphthenic refrigeration compressor oil with anti-wear additives for CFC/HCFC refrigeration systems.
It is used in low-temperature refrigeration, commercial and industrial refrigeration, heat pumps and air-conditioning systems with R22, R502, R401A/B or R402A/B applications.
The product is suitable for open, semi-hermetic and hermetic refrigeration compressors within its stated refrigerant application range.
Yes. Its kinematic viscosity at 40°C is 46 mm2/s and its stated grade is ISO VG 46.
The primary product image shows the 20 L pail. Ask for 1 L, 5 L or 205 L availability when you submit your required quantity and destination.
For broader R22 maintenance planning, read our mineral refrigeration oil selection guide. When a system moves from R22 to an HFC refrigerant, use the R22-to-HFC retrofit oil conversion guide to plan the oil-family change.
