Vickers Oils BIOGEAR XP – “10 years trouble free operation”

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Trinity House, a UK based charity dedicated to safeguarding shipping and seafarers since 1514, has been a long-term user of Vickers Oils HYDROX mineral based sterntube lubricants, but in 2009 decided to introduce an Environmentally Acceptable Lubricant (EAL) to their Rapid Intervention Vessel THV Alert, which operates in environmentally sensitive areas of UK waters.

Alert has been designed with buoy handling, wreck marking, towing and hydrographic surveying capability.  It is deployed primarily to cover the southeast UK coast where she can respond rapidly to any maritime incident.

In order not to compromise lubrication performance within its Kongsberg (formerly Rolls-Royce Marine) Controllable Pitch Propellers (CPPs), it was an easy decision to select BIOGEAR XP 68, a VGP Compliant ester based EAL Gear Oil which meets the requirements of DIN 51517 Pt3. The product was initially introduced to one of the vessels CPPs.

After 4 years operation the vessel went into dry dock and the CPP was stripped down.  All of the oil wetted components inspected were found to be in excellent condition with no signs of wear.  Because of this success, the second CPP was changed to BIOGEAR XP 68 during this docking. The initial CPP continues to operate on BIOGEAR XP 68, which is now in its 10th year of operation. Regular ‘Used Oil Analysis’ shows the BIOGEAR XP 68 to be in excellent condition and suitable for continued service.


Vickers Oils have a range of VGP compliant, EAL thruster lubricants which are approved by many of the leading OEMs. BIOGEAR XP is a range of biodegradable, high performance, extreme pressure (EP) gear lubricants with excellent anti-wear and micropitting performance, available in ISO 68, 100 and 150 viscosities. These lubricants are based on fully saturated synthetic esters with a high degree of renewability and use state-of-the art additive technology.

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