Gear Oil
Castrol offers a complete range of high-performance gear oils based on mineral or various synthetic base oils to ensure optimised lubrication of your gearbox. Our high performance gear oils combine a high load carrying capability with a low coefficient of friction, reducing wear and lowering in-service operating temperatures. Our range of gear oils, including Castrol Optigear Synthetic X, can also protect your rolling element bearings to minimise any gearbox failure.
LOW FRICTION GEAR OILS THAT OPTIMISE EFFICIENCY
Castrol Optigear is a range of leading high-performance gear oils formulated with MFT (MicrofluxTrans) Plastic Deformation technology. Castrol Optigear is proven to lower the coefficient of friction by up to 60% compared to standard gear oils, actively resisting wear and pitting.
Castrol Optigear BM Series
Castrol Optigear MX Series
High Performance Mineral Gear Oils with MFT PD technology – Castrol’sMicroflux Trans (MFT) Plastic Deformation (PD) additive helps improve performance when operating temperature and loads reach a certain level of activation energy, by enabling the micro-smoothing 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. MFT 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.
Advantages
1. Good filtration properties.
2. Excellent bearing lubrication suitability.
3. Lowers maintenance and labour costs.
4. Lower costs for lubricants and waste oil disposal because of significant extensions of both service life and relubrication intervals.
Castrol Optigear Synthetic X Series
High-Performance Synthetic Gear Oils – Castrol Optigear™ Synthetic X is based on synthetic hydrocarbons and Castrol’s Microflux Trans (MFT) Plastic Deformation (PD) additive and surface improvement additive package. The additive package, when activated by high specific loads and corresponding temperatures, helps to equalize surface roughness without creating abrasion leading to the surface improvement.
Advantages
1. High load carrying capacity.
2. Superior micro pitting protection.
3. Excellent friction reduction.
4. Good filtration properties.
5. Extended lifetime of machine elements and wear parts, lowers maintenance and labour costs.
6. Lower costs for lubricants and waste oil disposal because of significant extensions of both service life and relubrication intervals.

