Castrol Optigear Synthetic RO 150
Castrol Optigear Synthetic RO 150 high-performance synthetic oil, developed especially for gears used in rail traffic and mechanical engineering applications (such as in Robots). The properties of Optigear Synthetic RO mean it can be used in extreme climate conditions and for long-term use. Optigear Synthetic RO is formulated with Castrol’s Microflux Trans (MFT) Plastic Deformation (PD) additive. MFT PD 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.
Castrol Optigear Synthetic RO 150 delivers strong wear protection that helps safeguard critical components against surface damage and fatigue, supporting longer service life and reliable operation under sustained load.
Excellent low-temperature performance supports reliable cold-start flow, ensuring that critical components receive lubrication quickly even in challenging ambient conditions.
Strong corrosion protection helps preserve metal surfaces against rust and chemical attack, supporting equipment longevity in environments where moisture or aggressive contaminants may be present.
Castrol Optigear Synthetic RO 150 can be used for all types of spur gear teeth, also under difficult load conditions. Bevel gear units, including those with a large offset (hypoid) and heavy alternating loads. All types of roller bearings, with heavy loads and low and high temperatures.
Castrol Optigear Synthetic RO 150 is manufactured to Castrol’s standard tolerances; users should consult the safety data sheet for handling, storage and disposal guidance.


