Caution required switching to bio-oils for stern tubes

An estimated 4.6 to 28.6 million litres of stern tube lubricant entering the sea each year means that biodegradable oils and water lubrication are likely to figure more definitively on the regulators radar in the near future. Is the technology ready?

Kluber test rig

An estimated 4.6 to 28.6 million litres of stern tube lubricant entering the sea each year means that biodegradable oils and water lubrication are likely to figure more definitively on the regulators radar in the near future. Is the technology ready?