Site traffic information and cookies

We use cookies to collect and analyse information on our site's performance and to enable the site to function. Cookies also allow us and our partners to show you relevant ads when you visit our site and other 3rd party websites, including social networks. You can choose to allow all cookies by clicking ‘Allow all’ or manage them individually by clicking ‘Manage cookie preferences,’ where you will also find more information.

Manage cookie preferences

  1. HOME
  2. PRODUCTS
  3. MARINE
  4. ENVIRONMENTALLY ACCEPTABLE LUBRICANTS
  5. CASTROL BIOSTAT

CASTROL BIOSTAT

Environmentally acceptable stern tube and gear oil**, with outstanding performance when compared with mineral oils

High specification stern tube and gear oil

See our products

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
Castrol Biostat

Why you need it

  •  To comply with the US Vessel General Permit (VGP) legislation
  •  Castrol BioStat products are committed to certified carbon neutral*** in accordance with PAS 2060 from 2021
Path 360
*In accordance with PAS 2060, see www.castrol.com/cneutral for more information.
***The CO2 emissions are calculated in accordance with the Greenhouse Gas Protocol’s Product Life Cycle Standard and include life cycle
emissions. The demonstration of carbon neutrality is assured by an Independent Third-Party and certified to BSI’s PAS 2060 carbon neutral specification. See www.castrol.com/cneutral for more information.
 
  • 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)
Explore Castrol Bio Range