Description
Castrol Optigear RMO High performance long-term gear oil ISO VG 150
OPTIGEAR™ RMO is a multi-grade, high performance and long-term gear oil, especially developed for drive units in railborne traffic and machine construction at extreme climatic conditions. Low temperatures down to – 40°C/- 40°F can be handled without preheating the gears.
Application
All kinds of spur gearings even when subjected to the most extreme loads. Bevel gear pairs, also conical (hypoid) and at high changing loads.
Dip lubrication at high speeds as well as injection and oil mist lubrication.
Advantages
- High load carrying capacity and wear protection.
- Reliable oil supply of bearings at low temperatures.
- High scuffing load capacity.
- Lowering of coefficient of friction and operating temperature.
- Combines good high-temperature with excellent low-temperature properties.
- Reduced running-in period of new drives.
- Good corrosion protection.
- Long service life of gears.
Technical specifications
- Colour: green – brown
- Density @ 15°C / 59°F: 879 kg/m³
- Kinematic Viscosity @ 40°C / 104°F: 150 mm²/s
- Kinematic Viscosity @ 100°C / 212°F: 18 mm²/s
- Viscosity Index: 133
- Flash Point – open cup method: 190 °C
- Pour Point: -48 °C
- Volume: 208l barrel
- Also available in: 20l canister
- GLIS number: 15E630
- MSDS code: 450762
Hazards (CLP)

Signal word: Warning.
Hazard statements
- H317 – May cause an allergic skin reaction.
- H412 – Harmful to aquatic life with long-lasting effects.
Precautionary statements
- P280 – Wear protective gloves.
- P273 – Avoid release to the environment.
- P261 – Avoid breathing vapor.
- P362 + P364 – Take off contaminated clothing and wash it before reuse.
- P302 + P352 – IF ON SKIN: Wash with plenty of water and soap.
- P333 + P313 – If skin irritation or rash occurs: Get medical advice/attention.
Storage and disposal
- P501 – Dispose of contents/container in accordance with local, regional, national, and international regulations.
Additional information
- Hazardous ingredients: Reaction product of diammonium molybdate in water with ethoxylated alkylamine (C12-C24, typically C18 unsaturated).
- Maleic anhydride
BP Europa SE, Erkelenzer Straße 20, 41179 Mönchengladbach, GERMANY, +49 800 7235 074, [email protected], www.bp.com






Maxime –
Very practical. Very good experience.
Lucas M. –
Top quality, fast delivery. Everything went smoothly. Works without any issues. Perfect job, thanks.
Manon Z. –
Very fast delivery, thank you. Very effective; noticed a change after just one week.
Roberto –
Works without any issues. Fast delivery and exactly as described.
Elijah –
Fast delivery, good workmanship. Fast and secure delivery.
camilla_s –
Easy to use, without making a mess. No unpleasant smell, which I really appreciate. Great product, worth every cent.
Clément X. –
Just as it should be.
Federico B. –
Simply excellent. Price matches the quality.
jackson88 –
Fast and reliable. Quality is excellent. Arrived on time and in excellent condition. Better than I thought; I’m satisfied.
Nicole D. –
Very effective, I noticed a change in just a week. Easy to use, without making a mess. Easy to use, without making a mess.
Marine –
Pleasant to use at home. I was skeptical, but now I’ll order regularly. No unpleasant smell; I really like that.
david_de –
Very happy with the purchase, works great. Top seller. Impeccable service.
angelo88 –
Easy to assemble. Practical and functional.