Group III 4 cSt or VHVI-4 base oil is used for producing high-quality engine oils. Base Oil VHVI-4 is produced by hydroskimming unconverted oil at high pressure and is characterized by a high viscosity index, good cold flow properties, ultra-low sulfur content, low aromatic hydrocarbon content, and low vaporability.

Range of application

VHVI-4 base oil is used as a base for producing industrial, hydraulic, and engine oils, as well as drill fluids, and other agents. It neither freezes nor clouds up at low temperatures.

To transport VHVI-4 base oil, trucks, flexi-containers, and rail tank cars are used. For Base Oils VHVI-4 specifications, feel free to contact us – our sales department will help you choose a product for your specific application.

VHVI-4 advantages

  • • A low pour point ensures high oil pumpability, quick starting at subfreezing temperature, which makes them usable in a variety of climatic conditions;
  • • Thermal oxidation stability reduces the oil oxidation at high engine temperatures and scale deposition;
  • • Low vaporability reduces oil refilling frequency;
  • • Duration running of the oil in harsh operating conditions (the service life is 1.5-2 times longer compared to mineral oils);
  • • Compatible with mineral oils and ethers.

DYM Resources is buying Base Oil 4cSt Group III in bulk and selling it worldwide. Our geography covers Europe, Latin America, Africa – we’re delivering the product to USA, Germany, South Africa, China, Turkey, Argentina, Vietnam, Colombia and many other countries worldwide.

To choose a particular product for your application or find out VHVI-4 base oil price please contact our sales department:

Base Oil 4cSt Group III Specification

Color ASTMASTM D 1500Max 0,5L0,5
Kinematic viscosity at 50 °CASTM D 445mm2/s14,12
Kinematic viscosity at 100 °CASTM D 445mm2/s3,9 – 4,64,3
Viscosity indexASTM D 2270Min 125130
Pour pointASTM D 97°CMax -15-18
Flash point OCASTM D 92°CMin 210230
SulfurASTM D 4294ppmMax 100,3
Density at 15°CASTM D 4052kg/m3827
NOACKASM D 5800wt%Max 1513


What is Base Oil 4cSt (VHVI-4)?
Base Oil 4cSt (VHVI-4) is the base oil produced by hydroskimming unconverted oil at high pressure.
What is Base Oil 4cSt (VHVI-4) for?
Base Oil 4cSt (VHVI-4) is used as a compounding material for high-quality engine oils. It features a high viscosity index, decent cold flow properties, extremely low content of sulfur, low content of aromatic hydrocarbons, and low vaporability properties.
What products can be manufactured from Base Oil 4cSt (VHVI-4)?
Base Oil 4cSt (VHVI-4) is used for producing industrial, hydraulic, and engine oils, drill fluids, and other agents.
How is Group III Base Oil 4 cSt priced?
Group III 4 cSt or VHVI-4 prices are published weekly by pricing agencies global Argus and ICIS in Europe, USA and Asia. To get the cost of VHVI-4 to your destination port you need to send a request so that our commercial team updates the actual freight cost from one of our storages.
What is OEM Base Oils approval?
Original equipment manufacturer (OEM) approval is a set of requirements that base oil producers should meet in order to provide the end user with a specific product for a certain application. OEM approval requires testing and certification.
Does your Group III Base Oils have approvals?
DYM Resources can supply approved Group III from Korean, European or Middle Eastern producers or not-approved producers from Russia. VHVI-4 without approvals is more cost effective and has very high quality properties, so if you have flexibility to use Group III without approval it may improve your product efficiency. OEM approvals are important for engine oils manufacturing.
How to order Base Oil 4cSt (VHVI-4)?
To order Base Oil 4cSt (VHVI-4), please contact our sales department that will help you select a product suitable for your specific application.

PDFGrp III 4cSt T spec

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