It is a premium quality lubricant specially created to fully meet the requirements for precision machining of parts on modern high-performance machines. Mobil Vactra Oil No. 4 compositions are based on high-quality base components, their performance characteristics are balanced thanks to the use of a progressive additive system that provides low friction properties, excellent corrosion protection and resistance to foaming. The unique additive package allows to reduce jamming-slippage and vibration in conditions of thin-film boundary lubrication. This ensures uninterrupted uniform movement at the design speeds. Mobil Vactra Oil No. 4 is optimized to provide excellent separation from aqueous refrigerants in cooling systems while reducing the corrosive effects of refrigerants with high pH on the lubricated surface. The basic components and the additive package are carefully selected to protect the carriages and guides while maintaining good filterability. This is important because a decrease in fluidity or clogging of filters leads to an increase in jamming-slippage, vibrations and wear. Adhesive agents form homogeneous films that are resistant to abrasion from the surface of the guides when the machine is not in operation.


Mobil Vactra Oil No. 4 is recommended both as a lubricant for guides and for hydraulic systems of moderately loaded machines.
This oil is intended for application to any combination of guides made of cast iron, steel and non-metallic materials.
Mobil Vactra Oil No. 4 can be used for manual lubrication, forced lubrication or liquid lubrication using a circulation system.
Due to its extreme pressure properties, it is suitable for use for all types of gears found in machine tools. It should not be used in circulation systems in which oil temperatures in volume exceed 66 ° C.
Mobil Vactra Oil No. 4 is usually recommended for large machines with high pressure on the guides or in cases where high precision is required. It is also recommended for vertical and inclined rails, where oil runoff can cause problems.
This oil can be used to lubricate ball joints, screw joints, linear guides, headstock, screw gears, cylindrical straight-toothed and oblique gears and lightly loaded worm gears. In cases where contamination of an aqueous refrigerant with ordinary mineral oil shortens the service life of the refrigerant.


Mobil Vactra Oil No. 4 is developed and specially designed to provide extra-marginal protection of machinery and equipment by meeting the strict requirements of manufacturers of guides, while meeting the requirements of other lubricated components of machine equipment. It has excellent lubricating and bearing performance characteristics, contributing to a significant increase in productivity and quality of the machined parts. Its outstanding thermal-oxidative stability increases the degree of cleanliness of machinery and equipment, provides the desired filterability and reduces the need for frequent maintenance. Mobil Vactra Oil No. 4 provides excellent separability from water and from water refrigerants, reducing the potential for negative effects of mutual contamination, increasing the service life and improving the performance of both lubricants and refrigerants.

Low friction characteristics. Contribute to the elimination of vibration and jamming conditions-slipping of guides and carriages. Improve the quality of processing parts. Reduce wear.
Lubricating properties. They help to reduce wear and increase the smoothness of sliding.
Adhesive properties. Prevent the removal of lubricating oil from critical surfaces. Protect surfaces from aggressive refrigerants with a high pH level.
Separation of water and refrigerants based on water. Increases the service life of the lubricating oil and improves its characteristics. Increases the service life of the water refrigerant.
Resistance to oxidation/chemical reagents. Increases the service life of the oil. Ensures the cleanliness of sliding surfaces and other lubricated components. Helps to reduce the frequency of filter changes.
Protection against rust and corrosion. Helps to reduce the degree of deterioration of sliding surfaces and the associated maintenance costs. Improves the quality and performance of machined parts.
Filterability. Provides the removal of fine abrasive particles that can impair the processing of parts or assemblies. Reduces the frequency of filter changes.
Compatibility of nodes made of different metals. Provides processing of parts and assemblies made of ferrous and non-ferrous metals.