Filter
        Main category
    
      
        Subcategory
    
      
          Specification
          
            Viscosity
          
  
The SAE classification explained
Roughly speaking, the SAE classification divides the various engine oils into classes of different flow behaviour. The number before the W (5W-30) indicates the lowest temperature at which the oil can still be pumped. The number after the W (5W-30) indicates the flow behaviour at 100°C.