CP-4600-68 is a synthetic PAO refrigeration compressor oil with a kinematic viscosity of 68.5 cSt at 40 °C, which places it inside the ISO VG 68 band. It is part of the CP-4600 range made by CPI Fluid Engineering, the compression and refrigeration fluids business of The Lubrizol Corporation, and the manufacturer lists R717 (ammonia) and R1270 (propylene), the refrigerants the CP-4600 range is designed for.
We manufacture and supply this viscosity class ourselves, at our own blending plant in Foshan, China — our equivalent is our own PAO grade at this viscosity class. It ships from Guangzhou Port, which is next to the plant. There is no fixed minimum order — it is confirmed per order, because a single can and a full container load are both workable and the figure moves with the pack size, the quantity and the destination. Delivery is on any Incoterms 2020 term — EXW, FOB, CFR, CIF, DDP and every other rule — and payment is on any commonly used method, including T/T, L/C and PayPal. Send the compressor model, the refrigerant and the operating temperature and we will confirm the grade against the CPI data before quoting.
QISHANR is a refrigeration oil manufacturer and wholesale supplier, and this grade is supplied in bulk to distributors, HVACR service companies and compressor OEMs worldwide.
CP-4600-68 is supplied on published terms: the viscosity, the price terms, the payment terms and the documents are the same for every buyer, and they can be quoted without a site visit. The minimum order is deliberately left open, because it is judged case by case: the grade, the quantity, the pack size, the shipping terms and the container load all move it, so a single can and a full container load are both workable and neither is treated as the normal case. Send us the quantity, the destination port and whether your own brand goes on the container, and those three turn the table below into a firm quotation. Documents and lead time work the same way on every order: the technical data sheet and safety data sheet come with the quotation, and the certificate of analysis for the delivered batch comes with the shipment. This grade is supplied wholesale and in bulk — to distributors, HVACR service companies, compressor OEMs and private-label buyers — as well as in single packs and sample quantities.
| Item | Terms for CP-4600-68 |
|---|---|
| Minimum order quantity | Not a fixed figure — confirmed per order, because it is judged case by case: the grade, the pack size, the quantity, the shipping terms and the container load all move it, so a single can and a full container load are both workable |
| Payment terms | Any commonly used payment method — T/T, L/C, PayPal and every other option — confirmed with the order |
| Price terms | Any Incoterms 2020 term — EXW, FOB, CFR, CIF, DDP and every other rule — quoted against your destination port |
| Supply ability | 1,000 pieces per year on this grade, at our blending plant in Foshan — this is the figure for our equivalent at this viscosity level, not the annual capacity of the plant |
| Origin | The original Lubrizol CPI product, or an equivalent manufactured at our own plant in Foshan, China |
| Supply options | The original CPI CP-4600-68, or our own PAO grade at this viscosity class manufactured at our blending plant in Foshan, China |
| Who buys this grade | Distributors and resellers who stock refrigeration oil, HVACR and refrigeration service companies, compressor OEMs filling new equipment, and buyers who need private-label or own-brand packing. Wholesale and bulk orders are the norm; trial and sample quantities are also supplied. |
| Grade confirmation | Send the compressor model, the refrigerant and the operating temperature. The CP-4600 range is the same base oil at several viscosity levels, so we confirm that CP-4600-68 is the right one for your machine before quoting |
| Viscosity | 68.5 cSt at 40 °C, which falls inside the ISO VG 68 band (61.2–74.8 cSt) defined by ISO 3448 |
| Pack size | Confirmed at quotation. custom pack formats and private-label artwork are available as a quotation item. |
| Documents issued with the order | Technical data sheet, safety data sheet, and a certificate of analysis for the delivered batch |
| Handling and storage | Store sealed, away from direct sunlight, and keep the container closed between top-ups. A PAO is hydrolytically stable, so it does not pick up moisture the way an ester does, but contamination still has to be kept out of the sump. Do not decant into an unlined steel drum. |
Supply ability is stated for this grade rather than for the plant as a whole. It is not the annual capacity of the blending plant.
A lubricant order is rarely only a lubricant order. The buyer is usually solving a grade question, an import documentation question, a freight question and a packaging question at the same time — often across more than one product family. Those are the parts of the job we take on, and they are handled by the same team that quotes the oil rather than passed to a third party.
We are a manufacturer rather than a reseller, which is what makes that possible. The blending plant in Foshan, Guangdong runs at 6,000 tonnes a year and has been producing lubricants for more than ten years, so the answer to most of the questions below comes out of our own production and our own paperwork.
| What you are dealing with | What we do about it |
|---|---|
| You cannot tell whether the system takes 68.5 cSt or the level next to it | Send the compressor model, the refrigerant and the operating temperatures. The CP-4600 range is the same base oil at several viscosities and the neighbouring grades are separated by the compressor duty and the working viscosity, so the answer comes from the data sheet rather than from the can. We confirm the grade in writing before you order, so it can be checked against the specification. |
| You have the CPI data sheet and need the grade to match it | We confirm the viscosity and the base oil type against the CPI data for this grade, and we supply to that specification rather than to a generic description. Every figure on this page is traceable to the published document, which is linked at the foot of the page. |
| You are buying alongside other oils and want them on one order | Refrigeration oils are the core of our business, not the whole plant. The same lines produce air compressor oils, vacuum pump oils and general industrial lubricants, and a mixed enquiry can be quoted, packed and shipped together rather than split across suppliers. |
| You need documentation for customs or for a tender | CE, CO, MSDS and transport certification are issued as standard documents with an export order. Tell us at the enquiry stage which certificate the destination requires and we compile the file with the quotation rather than after the shipment. |
| You want the grade under your own label | Private-label artwork and custom pack formats are a normal quotation item. Tell us at the enquiry stage that your own label is required, and the artwork and the pack are quoted together with the oil rather than added afterwards. |
The point of this list is that the questions are answered before the order rather than after it. If you are unsure which of them applies to you, describe the system and we will tell you what we need.
Grade confirmation comes before pricing, because the CP-4600 range is the same base oil at a range of viscosities and a wrong class is the mistake that costs a compressor. The sequence is the same whether you are buying one can or a full container:
If you already know the grade and only need a price, send the quantity and the destination port and we will quote directly.
The values below are the manufacturer's published figures for CP-4600-68, taken from the CPI CP-4600 series technical data. Every figure is tied to the document it came from, which is linked at the end of the page.
| Property | Typical Value | Test Method | Source |
|---|---|---|---|
| Oil type | Synthetic polyalphaolefin (PAO) | — | CPI — CP-4600 series technical data |
| ISO viscosity grade | ISO VG 68 (ISO 3448) | — | Derived — 68.5 cSt falls inside the 61.2–74.8 cSt band |
| Kinematic viscosity at 40 °C | 68.5 cSt | ASTM D445 | CPI — CP-4600 series technical data |
| Kinematic viscosity at 100 °C | 10.4 cSt | ASTM D445 | CPI — CP-4600 series technical data |
| Viscosity index | 140 | ASTM D2270 | CPI — CP-4600 series technical data |
| Density at 60 °F | 6.96 lb/gal | ASTM D1298 | CPI — CP-4600 series technical data |
| Specific gravity | 0.835 | ASTM D1298 | CPI — CP-4600 series technical data |
| Pour point | −51 °C (−60 °F) | ASTM D97 | CPI — CP-4600 series technical data |
| Flash point | 248 °C | ASTM D92 | CPI — CP-4600 series technical data |
| Fire point | 276 °C | ASTM D92 | CPI — CP-4600 series technical data |
| Refrigerant | R717 (ammonia) and R1270 (propylene) | — | CPI — CP-4600 series technical data |
Every figure in this table is reproduced from the CP-4600 series technical data, which prints the value against a named ASTM method. The series data reports the viscosity at 100 °F and at 210 °F alongside the 40 °C and 100 °C figures; the two metric temperatures are the ones used here.
A specification table says what the oil is; these are the figures that decide whether it suits a given circuit, read from the published values above.
| Parameter | Value for CP-4600-68 | What it controls |
|---|---|---|
| Kinematic viscosity at 40 °C | 68.5 cSt — inside the ISO VG 68 band of 61.2–74.8 cSt | The film thickness in the bearings and the load the oil places on the compressor. This is the figure a replacement has to match. |
| Viscosity index | 140 | How steeply the oil thins as it heats up. A high index means the film at the discharge end stays close to the film at the suction end, so the compressor does not have to be designed around the worst point of the curve. |
| Pour point | −51 °C (−60 °F) | The cold end of the working window. Below this the oil stops flowing, so it is the figure that decides whether the grade suits a low-temperature circuit. |
| Flash point | 248 °C | The hot end of the working window and a rough measure of how the oil behaves at the discharge valve. |
The CP-4600 range is one base oil offered across a range of viscosities, so the grades differ in thickness and in the duty they are intended for rather than in chemistry. The table shows the grades we publish for this range, with this product marked.
| Grade | Oil type | Viscosity at 40 °C | Where it is used |
|---|---|---|---|
| CP-4600-32 | PAO | 31.4 cSt | The lightest grade we list in this range, at 31.4 cSt |
| CP-4600-68 (this product) | PAO | 68.5 cSt | The mid-range grade, at 68.5 cSt |
The manufacturer lists the same refrigerant and application for every grade in the range; the grades are separated by the viscosity and the compressor duty.
If this grade is not the one you need, the table shows where it sits against the rest of the CP-4600 range and against the other CPI lines we publish, so a substitution can be checked before it is ordered.
| Brand | Range | Viscosity at 40 °C | Note |
|---|---|---|---|
| Qishanr | PAO refrigeration oil | 68.5 cSt, our own PAO grade | Our own equivalent at this viscosity and base oil type, blended in Foshan, China |
| Lubrizol / CPI | CP-1009 range | 69 to 108 cSt | The semi-synthetic ammonia line from the same manufacturer — a different base oil type, chosen where the sump stands idle for long periods |
| Lubrizol / CPI | Solest range | 22 to 370 cSt | The polyol ester line from the same manufacturer, for HFC and HFO duty — a different base oil type, so not a substitute for this grade |
Two oils with the same viscosity are not interchangeable if the base oil type differs. Match the base oil type to the refrigerant first, then the viscosity to the compressor.
A polyalphaolefin is a synthetic hydrocarbon with no wax in it, and that single fact is what it brings to a refrigeration circuit. Its pour point is the lowest of any base oil used in this application, its viscosity index is high enough that the film thickness changes little across the working temperature range, and it is chemically inert and hydrolytically stable, so it does not pick up moisture the way an ester does and does not form acids in a sump that stands idle.
The manufacturer designs the CP-4600 range for ammonia and propylene compressors, and describes it as improving lubrication at both temperature extremes, lowering volatility, and staying compatible with mineral oil. On a flooded screw package running ammonia or propylene, that combination is what allows one charge to cover a wide operating window rather than forcing a compromise between cold-start flow and hot-load film strength.
The viscosity is chosen from the compressor duty, not from the drum size. The CP-4600 range runs from 31.4 cSt to 68.5 cSt at 40 °C and CP-4600-32 at 31.4 cSt below it. A heavier oil forms a thicker film in the bearings and the rotor gaps and carries more load; a lighter oil returns to the sump more readily at low temperature. Both directions have a cost when the class does not match the machine: step up and the compressor works against a film it was not designed for, step down and the film thins under load.
The figure to work from is the compressor manufacturer's requirement, and the grade in the CP-4600 range that matches it. That is the point at which we confirm the grade against the CPI data before quoting.
A PAO is chosen for the shape of its viscosity curve rather than for a single number on it. A high viscosity index means the oil thins less as it heats, so the film at the discharge end stays close to the film at the suction end and the compressor does not have to be designed around the worst point of the curve. That is the figure that separates a PAO from a naphthenic mineral oil of the same viscosity at 40 °C.
The pour point carries the other end. Ammonia and propylene plant frequently runs a low-temperature circuit, and an oil that stops flowing in the evaporator is an oil that never comes back to the sump. The published pour point for this grade is the figure that decides whether the circuit can be run at the evaporating temperature you need, and it is read with the viscosity at 40 °C rather than instead of it.
The CP-4600 range is one base oil across a range of viscosities, so two grades that look almost identical on the drum can be wrong for each other's machine. A quotation that skips the grade check is a price for a product that may not fit the unit it is going into, and the cost of that mistake is a compressor rather than a drum of oil.
So the sequence is fixed: send the compressor or unit model, the refrigerant and the operating temperature, and we confirm the class against the CPI data before the price is issued. That is also what makes the specification comparable on a page like this one, because every figure is tied to a published document rather than to a description.
We manufacture lubricants at our own blending plant in Foshan, Guangdong, which runs at 6,000 tonnes a year and has been producing for more than ten years. That is what allows us to quote our own PAO grade at this viscosity class against the CPI specification, and to hold stock on the grades we list rather than promising on behalf of a third party.
It also means the answer to a question about the oil comes from the plant rather than from an intermediary. If you need the grade matched to a compressor model, or to know which documents come with the shipment, tell us at the enquiry stage and we will confirm it against your destination rather than leave it until the order is placed.
Alongside the refrigeration oils the same plant produces air compressor oils, vacuum pump oils and general industrial lubricants, so a mixed enquiry can be quoted, packed and shipped as one shipment rather than split across suppliers.
A: There is no fixed minimum order — it is confirmed per order, because it depends on the pack size, the quantity and the destination, and a single can and a full container load are both workable. custom pack formats and private-label artwork are available as a quotation item, so if your own label has to go on the container, say so when you enquire and it is quoted as part of the project rather than added afterwards.
A: CP-4600-68 is a synthetic PAO refrigeration compressor oil with a kinematic viscosity of 68.5 cSt at 40 °C, which places it in the ISO VG 68 class. It is made by CPI Fluid Engineering, the compression and refrigeration fluids business of The Lubrizol Corporation, and the manufacturer lists R717 (ammonia) and R1270 (propylene), the refrigerants the CP-4600 range is designed for.
A: The manufacturer lists R717 (ammonia) and R1270 (propylene), the refrigerants the CP-4600 range is designed for. Both are gases a PAO handles well: the base oil has no wax in it, so the pour point is low and the film holds across a wide operating window. For a refrigerant outside that list, send us the gas and we will confirm which range applies before quoting.
A: They are the same base oil at two different viscosity levels. CP-4600-68 measures 68.5 cSt at 40 °C and CP-4600-32 measures 31.4 cSt, so the difference is the film thickness the oil forms in the bearings and the load it places on the compressor. They are not interchangeable on a machine that was specified for one of them; match the class to the compressor duty and the refrigerant.
A: A PAO has no wax in it, so the pour point is far lower and the viscosity index far higher than a naphthenic mineral oil of the same viscosity at 40 °C. On a circuit that runs a wide operating window, that means the film at the discharge end stays close to the film at the suction end, and the oil still flows in the evaporator. The manufacturer describes the CP-4600 range as designed for ammonia and propylene compressors, with lower volatility and chemical inertness.
A: Yes. The manufacturer describes the CP-4600 range as compatible with mineral oil, so a system that is being converted from a mineral charge can be handled without a compatibility problem between the two oils. It is still a different base oil type, so tell us what is in the system before you order and we will confirm the changeover.
A: The technical data sheet and the safety data sheet come with the quotation, and a certificate of analysis for the delivered batch comes with the shipment. CE, CO and transport certification are issued as standard export documents when the destination requires them — tell us at the enquiry stage which certificate the destination asks for and we compile the file with the quotation rather than after the shipment.
A: Each figure on this page is published against a named procedure: ASTM D445 for the kinematic viscosity, ASTM D2270 for the viscosity index, ASTM D1298 for the density and specific gravity, ASTM D97 for the pour point and ASTM D92 for the flash and fire points. The method is shown so the figure can be traced to the published test rather than treated as a general property, and so two suppliers' data sheets can be compared on the same basis.
A: Yes. Private-label artwork and custom pack formats are a normal quotation item on our own equivalent grade, and the container is packed at our plant in Foshan. Tell us at the enquiry stage that your own label is required, and the artwork and the pack are quoted together with the oil rather than added afterwards.
A: Store it sealed, away from direct sunlight, and keep the container closed between top-ups. Contamination stays in the sump rather than being filtered out on a charge that stands for long periods, so the container should be resealed after every use and the oil should not be decanted into an unlined steel drum.
Every figure on this page is taken from a published document rather than from our own measurement, so each one can be checked before you buy. This is the set of sources, with the document each figure came from.
| Source | What it establishes |
|---|---|
| CPI — CP-4600 series technical data | The figures in the specification table: the viscosity at 40 °C and 100 °C, the viscosity index, the density, the specific gravity, the pour point, the flash and fire points for CP-4600-68. |
| ISO 3448:1992 — Industrial liquid lubricants — ISO viscosity classification | The standard that defines the viscosity bands used to place 68.5 cSt at 40 °C inside the ISO VG 68 class. The band boundaries quoted on this page come from that classification. |
| The Lubrizol Corporation — compression, refrigeration and thermal fluids | The manufacturer's own description of the business and product lines that the CP-4600 range belongs to, used for the statements on this page about who makes the product. |
| ASTM D445 — Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids | The procedure behind the viscosity figures at 40 °C and 100 °C. |
| ASTM D97 — Standard Test Method for Pour Point of Petroleum Products | The procedure behind the pour point figure. |
Where a value is published by the manufacturer against a named test method, the method is reproduced with the figure so that the value can be traced to the published test.
This oil is manufactured and supplied by Guangzhou Qishanr Technologies Co., Ltd., trading as the brand QISHANR. The company is based in Foshan, Guangdong, adjacent to Guangzhou Port, and has been producing lubricants for more than 10 years from its own blending plant. That plant runs at an annual capacity of 6,000 tonnes, which is what allows us to hold stock on the grades we list and quote firm lead times rather than promising on behalf of a third party.
Refrigeration oils are the core of the business, but they are not the whole plant. The same lines produce general industrial lubricants, so a mixed enquiry that covers both refrigeration oils and ordinary industrial grades can be quoted, packed and shipped together instead of being split across suppliers.
This is not the full range. Specialised ester base oils and lubricant additives are produced in-house as well, which is the reason the synthetic ester grades can be specified to a target rather than bought off a shelf. If the grade you need is not listed above, send the specification or the product you are replacing and we will confirm whether we produce it.
Long-term partners get pricing that reflects a stable manufacturing base rather than a trading margin, and the same technical contact stays with the account from grade selection through to repeat orders.
CP-4600-68 is a 68.5 cSt PAO grade, so a quotation depends on the grade, the pack size and the destination port rather than on a list price. Send your compressor or unit model, the refrigerant and the quantity you need. We will confirm the viscosity against the CPI data — including whether your system takes the 68.5 cSt grade or the level next to it — and come back with pricing, pack size and lead time. A technical data sheet and safety data sheet come with the quotation, and we can quote our own equivalent at the same viscosity side by side so the comparison is on landed cost.
Request a QuoteOriginal publication. The product data, specifications and compatibility charts published on this page for CP-4600-68 refrigeration oil, ISO VG 68 were originally published by QishanrLubricants on 2026-10-21 at qishanrlubricants.com. © 2026 QishanrLubricants. All rights reserved.
Media, resellers and B2B evaluation. You are welcome to cite this page. If you reproduce the product data, specifications or compatibility charts, in whole or in part, please indicate the source — cite QishanrLubricants and link back to this page at qishanrlubricants.com.
Citing data or viewpoints. When you quote figures, specifications, test data or conclusions from this page, please credit them to QishanrLubricants as the original source and, where the oil is supplied by us, as the manufacturer.
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