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Technical expertise

Engineering lubrication, not just supplying it

Behind every G-Lender grade is a selection method: we study the machine, the speed, the load, and the temperature envelope — then match the base oil chemistry and thickener system that will survive it. Here's how we think.

Talk to our technical team Request PDS / SDS

Our selection approach

The right lubricant is engineered backwards from your machine

Two disciplines, one method — start from the operating conditions, end at the exact grade.

Oil engineering

Engine, gear, hydraulic & compressor oils
1
Viscosity & performance requirement

We start from the OEM's viscosity and performance requirement, then verify the ISO VG or SAE grade against operating temperature, speed, load and start-up conditions.

2
Oil chemistry alignment

Then we align the base oil family — mineral, PAO, PAG or ester — to temperature extremes, drain interval and seal compatibility.

Grease engineering

Bearings, chassis & central lubrication
1
Temperature envelope first

The complete formulation sets the working limits — base oil, thickener and additives together determine low- and high-temperature performance. We start from your coldest start-up and hottest running point.

2
Thickener trade-off analysis

Water resistance, load capacity, speed factor, pumpability — every thickener trades one for another. We weigh them against your duty cycle.

Method, then proof

Formulated in the lab. Proven in the field.

Formulations are supported by laboratory checks of viscosity, wear protection and thermal stability — and, where applicable, by field validation in industrial and automotive applications.

Grease engineering

Thickener profiles

The thickener is the skeleton of a grease. Each system has a personality — these are the five we work with most, rated 1–5 on the factors that decide real-world survival. Ranges and ratings are typical for the chemistry; actual limits vary by formulation — always refer to the product PDS.

LI-CX

Lithium Complex

Most widely used
−25°C → 150°C typical200°C peak
Water resistance
Load / EP
High speed
Pumpability
Thermal stability
General bearingsWheel hubsMulti-purpose
CA-SX

Calcium Sulfonate Complex

Marine / heavy industry
−25°C → 170°C typical230°C peak
Water resistance
Load / EP
High speed
Pumpability
Thermal stability
Steel plantsMarineOutdoor heavy load
PU

Polyurea

Electric motors / spindles
−30°C → 160°C typical200°C peak
Water resistance
Load / EP
High speed
Pumpability
Thermal stability
Electric motorsHigh-speed bearingsSpindles
AL-CX

Aluminium Complex

Wet / food-adjacent
−35°C → 150°C typical180°C peak
Water resistance
Load / EP
High speed
Pumpability
Thermal stability
Wet environmentsFood-adjacentGeneral industrial
PFPE

PFPE / PTFE System

PFPE base oil · PTFE thickener · High-temp
Up to 260°C typical high-temp service300°C+ peak, grade-dependentLow-temp limit varies widely by PFPE grade (down to −70°C)
Water resistance
Load / EP
High speed
Pumpability
Thermal stability
Extreme tempPlastic contactClean rooms
Mixing greases? Stop first. Never assume compatibility from thickener type alone — polyurea-to-lithium compatibility, for example, varies by formulation, and PFPE/PTFE systems are generally incompatible with hydrocarbon greases. Confirm with the lubricant supplier or a standardised grease-compatibility test, and purge and clean housings before a changeover — or ask us to plan it.

Oil engineering

Base oil families

The base oil is 80–99% of every lubricant. Choosing the right family decides temperature range, drain interval, and cost per running hour. VI figures and ranges are typical examples — they vary with chemistry and viscosity grade; refer to the product PDS.

Typical VI ~100

Mineral Oil

Group I/II · Standard duty
−20°C → 120°C typical range
Oxidation stability
Low-temp fluidity
Lubricity
Seal compatibility
Cost efficiency
Standard gearboxesHydraulicsThermic fluids
Typical VI ~160

PAO Synthetic

Group IV · Extended drain
−40°C → 180°C typical range
Oxidation stability
Low-temp fluidity
Lubricity
Seal compatibility
Cost efficiency
Precision bearingsExtended drainWide temp range
Typical VI ~175

PAG

Group V · Compressors / worm gears
−40°C → 200°C typical range
Oxidation stability
Low-temp fluidity
Lubricity
Seal compatibility
Cost efficiency
CompressorsWorm gearsFire-resistant hydraulics
Typical VI ~150

Ester

Group V · Turbines / aviation
−50°C → 180°C typical range
Oxidation stability
Low-temp fluidity
Lubricity
Seal compatibility
Cost efficiency
TurbinesAviationBiodegradable applications
Typical VI >300

Silicone

Group V · Extreme temperature
−60°C → 300°C typical range
Oxidation stability
Low-temp fluidity
Lubricity
Seal compatibility
Cost efficiency
Extreme temperatureElectrical insulationFood-grade options

From one bearing to a whole fleet

Speak to the G-Lender technical team

Send us your machine, OEM spec, or current grade — we'll come back with the exact G-Lender product, the reasoning, and the data sheet to back it up.

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