PRODUCTS & SERVICES

Motor oils

CHARACTERISTICS

Motor oils are formulated using mineral or synthetic base oils, along with a combination of additives that generally include:

to limit engine deposits and sludge
Detergents-Dispersants
Anti-oxidants

to reduce wear from corrosion and limit mechanical wear
Anti-wear
Anti-corrosive/ Anti-rusting

to modify the physical properties of the base oil
Pour Point Depressants (P.P.D)
Viscosity index enhancers
VM friction modifiers
Anti-foaming

MOTOR OIL CLASSIFICATION

There are two main classification criteria for motor oils:

Based on Viscosity (SAE)
Based on Performance (API, ACEA, manufacturer's specifications)

SAE CLASSIFICATION

Kinematic viscosity measured at 100°C defines SAE degrees from 20 to 60 for rising levels of viscosity.
Dynamic viscosity at low temperatures defines the SAE "W" degrees, from the initial "Winter", from 0W to 25W on the basis of viscosity levels measured at temperatures from -35° to -5°C. The temperature represents the lowest possible temperature at which the engine can be started when lubricated with an oil of the corresponding SAE degree (e.g. a 15W oil makes it possible to start the engine at up to -20°C).
The minimum pumping temperature is the minimum temperature at which oil, in addition to allowing start up, can flow freely and lubricate the critical parts of the engine.

The table above shows the recommended viscosimetric level for lubricants on the basis of the outside temperature, as indicated in the following outline attached.