Kernow Oils - Lubricant Solutions


Why Castrol?

• Global Expertise
• the latest thinking
• the most advanced technologies
• the highest quality ingredients
..... all are utilised in Castrol’s leading edge products that are specifically designed to deliver technology that positively impacts performance, life time and productivity of your equipment.
Castrol offers you a comprehensive range of world class lubricants which deliver the performance you need in a full range of applications, including the most demanding and capital intensive, where leading edge lubrication technology is required. We can help make sure your equipment runs reliably, even in difficult and sometimes hostile environments, and for long periods of time – giving you improved production efficiency.
With the emphasis on your process reliability, they have developed a comprehensive range of premium metalworking fluids. To ensure they meet your needs, we offer you Castrol’s extensive knowledge and experience in their application across various industries. Our compatible products help you improve your quality and productivity and reduced overall process costs.
Only Castrol has the technology inside

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Castrol Optigear Synthetic X 320 - Synthetic gear oil - 3578

Castrol Optigear Synthetic X 320 - Synthetic gear oil - 3578



CASTROL OPTIGEAR® SYNTHETIC X is based on synthetic hydrocarbons and a special PD additive.
The additive package, when activated by high specific loads and corresponding temperatures, helps to equalize surface roughness without creating abrasion, the so-called plastic deformation.
CASTROL OPTIGEAR® SYNTHETIC X synthetic gear oil is a CLP-HC gear oil (according to DIN 51502) and exceeds the minimum requirements according to DIN 51517, part 3, CLP gear oils.



  • CASTROL OPTIGEAR® SYNTHETIC X may be used as gear oil in spur gear, bevel gears or planetary gear units in heavy loaded gear units, e.g. wind turbine main gears.
  • It is also suitable for the lubrication of oil-lubricated rolling bearings.
  • Depending on the specific application, CASTROL OPTIGEAR® SYNTHETIC X may be used in an operating temperature range from -30 °C to +95 °C.



  • High load carrying capacity
  • Good filtration properties
  • Excellent bearing lubrication suitability


ISO Viscosity and pack sizes available:

320 - 20L, 1000L IBC or bulk delivery.

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Castrol Alpha SP 68 - Industrial Extreme Pressure Gear Oil - 3181

Castrol Alpha SP 68 - Industrial Extreme Pressure Gear Oil - 3181


Castrol Alpha SP gear oils are a range of high quality solvent refined mineral oils, fortified with sulphur-phosphorous compounds to impart anti-wear and extreme pressure properties.


Castrol Alpha SP oils are recommended for the lubrication of industrial gearboxes with forced circulation or splash and oil bath lubrication.


• Excellent thermal stability and oxidation resistance = Long oil life
• Good water resistance and demulsification characteristics = Long oil life
• Rust and copper corrosion protection of metal surfaces = Less maintenance
• Lead-free additives = Avoids heavy metal contamination in the work place and environment

Castrol Alpha SP gear oils are fully approved by David Brown Gear Industries Limited.
Note - For applications where operating or ambient temperatures are higher than normal, the Castrol Alphasyn T range of synthetic gear oils is recommended.


ISO Viscosity Grades:
Alpha SP68, Alpha SP100, Alpha SP150 Alpha SP220 Alpha SP320 Alpha SP460 Alpha SP680

Available in 20L, 208L, IBC and Bulk

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Castrol Garden 4T - 4 Stroke Lawn Mower Oil - 1457

Castrol Garden 4T - 4 Stroke Lawn Mower Oil - 1457



Castrol Garden 4T is a high quality 4-Stroke lawn mower and garden machinery lubricant.
It is suitable for use in garden machinery where the manufacturer recommends an SAE 30 API SF or earlier specifications.


Features / Benefits

  • Castrol Garden 4T is designed to meet the demanding operation conditions found in air cooled 4-stroke petrol engines.


Specifications / Performance

  • API SF
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Castrol Act>Evo GP 4T 20W-50 - 4 Stroke Engine Oil - 1563

Castrol Act>Evo GP 4T 20W-50 - 4 Stroke Engine Oil - 1563



Castrol Act>evo GP 4T is modern, high quality 4-stroke engine oil designed with a special Wear Protection Formula to give both reliable engine starting and continuous trouble free running throughout the oil drain period.
Castrol Act>evo GP’s Wear Protection Formula, combined with Trizone Technology™ helps to continually maintain the protecting and lubricating properties of the oil by reducing wear, controlling excessive oil thickening, and keeping critical components clean. This helps to maintain the health of your engine, leading to reliable starting and trouble free running.
Castrol Act>evo GP 4T is suitable for all modern motorcycle engines where API and or JASO specifications are recommended.



  • Special Wear Protection additives for continuous “start and go” protection.
  • Outstanding oxidation and wear control throughout the drain period.
  • Trizone Technology™ for protection of the engine, clutch and gears.
  • Complies with requirements of catalyst equipped engines.


Specifications / Performance

  • SAE 20W50
  • API SG
  • JASO MA-2
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Castrol Hyspin HVI 15 - High viscosity index anti-wear hydraulic oils - 6035

Castrol Hyspin HVI 15 - High viscosity index anti-wear hydraulic oils - 6035


The Castrol Hyspin™ HVI range of high viscosity index (VI) oils is based on a carefully selected ashless (zinc free) additive system designed to meet and exceed the most exacting performance standards.


Hyspin HVI oils are intended for severely stressed hydraulic systems requiring a high level of anti-wear performance and fine filtration. In addition, Hyspin HVI exhibits excellent corrosion protection as well as outstanding thermal and oxidative stability. Hyspin HVI has excellent hydrolytic stability and separates rapidly from water contamination. Hyspin HVI contains a shear stable additive system helps maintain the viscosity characteristics of the product over a wide temperature range even during prolonged use and imparts a very low pour point which enables the product to be used in very cold environments. Applications include outdoor equipment which are likely to operate in wide temperature ranges, such as machinery subjected to cold start up conditions and high temperature continuous running. Examples include off-highway and marine applications. Indoor manufacturing equipment that incorporates control systems requiring minimal viscosity change with temperature. Examples include precision machine tools. The Hyspin HVI range is fully compatible with elastomer materials commonly used for static and dynamic seals, such as nitrile, silicone and fluorinated (e.g. Viton) polymers.

Hyspin HVI is classified as follows:
DIN 51502 classification – HVLP
ISO 6743/4 - Hydraulic Oils Type HV

Hyspin HVI grades meet the requirements (for appropriate viscosity grade) of:
DIN 51524 Part 3
Cincinnati Lamb (Milacron) P 68-69-70
Denison (Parker Hannafin) HF-0
US Steel 126 & 127
Eaton (formerly Vickers) I-286-S & M-2950-S
Frank Mohn
Bosch Rexroth RE07075/RE90220


  • High viscosity index and low pour point enables the product to be used over a wide temperature range, with good shear stability which means no excessive loss in viscosity due to mechanical shearing.
  • Excellent anti-wear performance provides extended wear protection for hydraulic pumps. Reduced down time due to unscheduled maintenance and savings from replacement part costs.
  • Excellent water separation and hydrolytic stability means reduced down time through prolonged lubricant life and increased equipment reliability.
  • Excellent thermal and oxidative stability provides reliable performance and extended oil life in severe applications. Minimal deposit formation gives a cleaner system and reduced frequency of filter changes.
  • Excellent filterability characteristics (including in the presence of water) enables cost savings to be made due to increased filter life.


ISO Viscosity and pack sizes available:
HYSPIN HVI 15 - 20L & 208L
HYSPIN HVI 22 - 20L & 208L
HYSPIN HVI 32 - 20L & 208L
HYSPIN HVI 46 - 20L & 208L
HYSPIN HVI 68 - 20L & 208L
HYSPIN HVI 100 - 20L

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Castrol Spheerol LMM - Lithium based extreme pressure grease - 9056

Castrol Spheerol LMM - Lithium based extreme pressure grease - 9056


Designed for normal and heavily loaded bearings operating at low and medium speeds and those subject to shock loading. Applications also include pivot pins, cams and screws.


ISO Viscosity Grades and pack sizes available


Spheerol LMM is an NLGI 2 lithium based grease, containing molybdenum disulphide solid lubricant to enhance its load carrying properties under conditions of high or shock loading or to prevent scuffing or fretting. It contains oxidation and corrosion inhibitors, antiwear additives, has good mechanical stability and can be used in the presence of moisture.


Spheerol LMM may be used in plain and roller elements bearings including heavily loaded bearings at low and medium speeds, and those subject to shock loading and excessive vibrations.


• Excellent EP and anti-wear performance - protects equipment against extreme loading and helps minimise bearing and component wear.
• Resistance to scuffing and fretting- provides protection against fretting that can occur on parts subject to reciprocating and sliding motion.
• High mechanical stability – the grease keeps its consistency in service ensuring long lubricant life.
• Good adhesion – continuous lubrication and reduced consumption as film stays between lubricated surfaces.
• Good water resistance – the grease film remains on the surface even in the presence of water.
• Resists the corrosion of both copper and steel – helps prevent rust and oxidation on metal surfaces.

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Castrol Aero 35 - Landing Gear Shock Strut Fluid - 1965

Castrol Aero 35 - Landing Gear Shock Strut Fluid - 1965


Castrol Aero™ 35 is a high quality, MIL-PRF-6083F based ISO Grade 15 mineral hydraulic fluid, containing antiwear agents and corrosion inhibitors. It also contains a shear stable viscosity index improver, anti-oxidant and an approved EP additive system which reduces martensitic streaking of landing gear outer cylinders and galling of shock strut upper bearings. This formulation is specially designed to reduce the "stick-slip" properties of MIL-PRF- 6083F fluids. Aero 35 is available in dyed red (Douglas Aircraft DPM 6177) or straw/yellow (undyed) (Boeing Spec BMS 3-32B, Type I).



Aero 35 is specially designed for use in landing gear shock struts. Additionally, Aero 35 is compatible with approved MILPRF- 5606H and MIL-PRF-6083F hydraulic fluids. It is not completely compatible with synthetic gas turbine lubricants nor with phosphate-ester hydraulic fluids. It is compatible with other petroleum-based and synthesized hydrocarbon lubricants, but contamination should be avoided in order to maintain the unique properties of Aero 35. This product is compatible with most seals, hoses, and paints, normally used in shock struts and dispensing equipment connected with this application. While certain grades of the above materials are fully compatible with Aero 35, it is advisable to confirm acceptability of use with either the material manufacturer or Castrol.


Aero 35 Red is formulated in accordance with Douglas Aircraft Specification DPS 3.334, referenced as Douglas stocknumber DPM 6177.
Aero 35 Yellow (undyed) is formulated in accordance with Boeing Specification BMS 3-32B, Type I as an alternative to Boeing Service Letters 707-SL-12-2; 727-SL-12-2; 737-SL-12-2; 757-SL-27-15-B. These letters instruct the addition of an EP additive to either the standard or corrosion inhibited mineral based hydraulic fluid for use in their landing gear shock struts.

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Castrol Aero HF 585 B - Mineral hydraulic fluid - 1973

Castrol Aero HF 585 B - Mineral hydraulic fluid - 1973


Low viscosity, high viscosity index hydraulic oil.
Petrolium based aircraft hydraulic fluid – dyed red.

ISO Viscosity and pack sizes available
AERO HF 585 B – 20L & 208L



Castrol Aero HF 585B is a mineral oil based low viscosity hydraulic fluid which is intended for use in hydraulic systems where rapid system response is required, particularly at low temperatures. Castrol Aero HF 585B is ideally suited to accumulator driven emergency control systems. Castrol Aero HF 585B is produced from low viscosity highly refined mineral basestock, shear stable viscosity index improver, antioxidants, corrosion inhibitors and anti-wear additives.



Hydraulic systems operating at low ambient temperatures or driven by accumulators, such as Emergency Shut Down Valves and Watertight Door Controls.



The wearing of impervious PVC (or other suitable material) apron and gloves, together with eye protection is recommended. Contaminated clothing should be changed immediately and thoroughly cleansed before re-use. This applies especially to under garments.



Castrol Aero HF 585B is available globally and combines excellent protection with performance and versatility in Offshore operations to provide the following key benefits:-

  • Excellent low temperature fluidity.
  • Good viscosity characteristics over a wide temperature range.
  • Good elastomer compatability.
  • Good compatibility with metals.



Performance Levels & OEM Approvals:

  • DEF STAN 91-48/2
  • Joint Services Designation OM-15
  • US Military MIL-H-5606E
  • NATO H-515
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