How Much Organic Molybdenum Should Be Added To The Engine Oil To Achieve The Desired Friction-Improve Performance?

Organic molybdenum friction improver

In the early days, animal and vegetable fats were used as additives to improve the lubricity of oil, so they are called oiliness agents.

Not only animal and plant fats can improve lubricity, but certain other compounds also have the same properties, such as organic boron compounds, organic molybdenum compounds, etc.

At present, substances that can reduce the friction coefficient of the friction surface are called Friction Improvers.

The main function of lubricants is to reduce friction and wear losses. Friction improvers are usually applied in boundary lubrication states to reduce friction coefficient and improve lubrication and energy efficiency. Friction improvers have been applied in automotive crankcase lubricants for many years, which can improve vehicle fuel economy and reduce exhaust emissions by reducing engine friction. Usually, engine oil contains friction improvers.

Organic molybdenum compounds have excellent anti-friction properties and can reduce the friction coefficient between moving parts, making them excellent friction improvers. Compared with other friction modifiers, organic molybdenum compounds have better energy-saving effects.

How much organic molybdenum compound should be added to the engine oil to achieve the desired friction-improve performance?

Someone used a reciprocating friction testing machine for evaluation, and the results showed that its anti-friction effect began to take effect when the concentration of Molybdenum Diakyldithiocarbamate (MoDTC) reached 200-250 mg/L.

Someone analyzed engine oil containing molybdenum in the market and found that its Mo content is also concentrated at around 200-400 mg/kg.

Commonly used organic molybdenum compounds include molybdenum disulfide dithiophosphate, molybdenum disulfide dithiophosphate, and molybdenum disulfide dithiocarbamate. These molybdenum friction modifiers not only have excellent anti-friction performance, but also good antioxidant and extreme pressure anti-wear properties, and they are widely used in engine oil and lubricating grease.