Castrol Biostat
Environmentally acceptable stern tube and gear oil**, with outstanding performance when compared with mineral oils
What it’s for
- Designed to protect stern tube bearings, thruster gear boxes, reduction gear, spur, helical and planetary gear units, couplings, rolling and sliding bearings, deck machinery gearboxes
Why you need it
- To comply with the US Vessel General Permit (VGP) legislation
- Approved by major original equipment manufacturers
- To preserve the efficiency of stern tubes and thrusters and help to reduce maintenance: the oil combines excellent protection, extended drain performance and versatility
Environmentally acceptable lubricant (eal)**
- Meets the definition of an EAL** under the 2018 US Vessel Incidental Discharges Act (VIDA) based on the requirements in the 2013 US VGP
- OSPAR**** tested and registered
- Reduced environmental impact***** when compared to conventional mineral oils
o Superior marine biodegradation
o Significantly reduced bioaccumulation****** and toxicity to marine organisms
o Enhanced renewability
**A lubricant, including any oil or grease, that is ‘‘biodegradable,’’ ‘‘minimally toxic,’’ and ‘‘not bio accumulative’’ as defined by US VGP 2013.
****OSPAR – Oslo and Paris Convention for the Protection of the Marine Environment of the North-East Atlantic.
*****Source: Product Data Sheet.
******Using OSPAR criteria for assessing bioaccumulation potential.
Reliability
High specification synthetic oil, tested and approved by several stern tube and
thruster original equipment manufacturers
- Good oxidation stability, anti-corrosion and anti-wear properties
- Proven outstanding gear and bearing protection compared with standard mineral gear oils
o Exceptional anti-wear performance (FAG FE-8 bearing test)
o Outstanding performance (FZG slow speed wear test)
- Good micro pitting resistance – suitable as a gear oil for deck machinery too
- Multiple purpose, can replace a range of different products to simplify lubricant management for crews
- High viscosity index from ISO VG 68 to ISO VG 220
- Thermally stable to protect over a wide range of operating temperatures (-10ºC to 150ºC)
- Very good seal compatibility (ISO standard 6072:2002 and OEM elastomer testing)