Advantages and disadvantages bio-degradable lubricants

The advantages of bio-degradable lubricants are-

• High viscosity index: it ensures that the lubricants remain effective at high temperature by maintaining the thickness of the oil film.
• High flashpoint: it considerably reduces the risks of fire due to lubricants leak.
• Less lubricants are not through evaporation: it saves the amount of money spent on lubricants.
• Low pour point and viscosity levels that remain low at temperature: ensuring excellent lubricants for cold starts.
• Higher bio-degradability and very less to zero toxicity.

The disadvantages of bio-degradable are as follows-

• Oxidizes easily.
• The free acid generated due to oxidation may increase corrosion.
• They have a tendency to dissolve rubber seals and gaskets.
• They are costly as compared to mineral oil.
• Polyglycolic are water soluble and hamper lubrication of machine parts.