High Performance

Castrol Optigear 1100/1000


High Performance Gear Oils


Castrol Optigear™ 1100 Range (previously called Tribol™ 1100 Range) of high-performance extreme pressure gear
oils, developed to tackle wear-related problems in heavily loaded industrial gears and bearings. Developed for service in
enclosed gear drives, sliding and rolling bearings, the Optigear 1100 gear oils are typically used where heavy and shock
load conditions prevail.

Optigear 1100 is formulated with Tribol Gear Oil Additive (TGOA) Plastic Deformation (PD) additive. TGOA PD helps
improve performance when operating temperature and loads reach a certain level of activation energy, by enabling the
microsmoothing of surface roughness without increasing wear. The smoothed surface delivers optimum wear
protection and an extremely low coefficient of friction, especially in applications which experience extreme pressure,
shock loads, vibrations or low speeds. TGOA PD helps to protect against scuffing and shock loading, while maintaining
a high load carrying capacity, and can help prevent the progression of micro-pitting in pre-damaged gears.
Specific grades within the Optigear 1100 range meet the requirements of DIN 51517 part 3 CLP and the requirements of
a wide range of industrial bodies and equipment manufacturers.


Optigear 1100 oils are particularly valuable in the running-in phase as well as in applications where surfaces have
already been damaged in the micro-range.
Typical applications are spur, helical, herringbone, bevel and planetary gears as well as in geared couplings. Optigear
1100 gear oils may be used in rolling and sliding bearings. Particularly suitable for Heavy duty reciprocating pumps for
drilling mud or cement placement offshore and onshore drilling sites. Optigear 1100 oils have good water separation


Compared to conventional non-PD oils, Castrol Optigear 1100 can deliver the following advantages:

  • Tests have shown a reduction in the coefficient of friction of up to 60% over conventional oils without PD
    technology¹ which can deliver energy savings, lower lubricant and component temperatures and improve
    operational efficiency
  • In laboratory tests Castrol PD additives were shown to prevent the progression of micro-pitting in pre-damaged
    gears. Non-PD oils used in pre-damaged gears showed existing wear levels increased up to three times²
  • Smoothing existing gear damage reduces the cost of repairs and replacements and improves operating
    efficiency by increasing equipment reliability
  • Friction, heat and vibration are reduced
  • Oil with Castrol PD additives provides superior protection with wear levels of less than half those observed in
    tests with conventional non-PD oil³ to help extend planned gear and bearing life
  • Extended lubricant service life and relubrication intervals can help to reduce costs and waste oil disposal
  • Full load operation is achieved in a short time, virtually eliminating the running-in period


¹ln-house testing on SRV test rig; steel ball against steel plate.
²In-house modified FZG micro-pitting test.
³Independent MPR testing carried out by Powertrib showed weight loss was less than half that recorded through use of
a conventional non-PD oil.

Operating temperature Max. 88°C
Viscosity 1000 mm/s² at 40°C
Viscosity index 95
Oil type Mineral
Product type Lubricating Oils
Applicable to these sectors Aerospace, Automotive Manufacture, Machinery, Metals, Mining

Optigear 1100 gear oils are compatible with other petroleum gear oils. This means that traces of previous oil
remaining in the gear case after draining will not pose any problems.
However, the beneficial effects of the TGOA PD additives are reduced when Optigear 1100 gear oils are mixed
with other gear oils.
A thorough cleaning of the gearbox is highly recommended to achieve the maximum benefits.
This product was previously known as Tribol 1100 Range. The name changed in 2015.


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