Unsur logam yang terdapat dalam Pelumas bekas

 

Unsur-Unsur ..................Kemungkinan asal Sumber unsur-unsur tersebut

Alluminum(A1) ..............Bearings-Bushings-Blocks-Pistons-Blowers- 

                                      Pumps-Clutches-Washers-  Ingested Dirt  

Barium (Ba)...................Detergent/Dispersant additive
Boron (B) .....................Coolant Additive-EP Additive
Cadmium (Cd)...............Coating on Metals
Calcium (Ca)..................Detergent Dispersant Additive-Salt water-

                                      Road salt
Chromium (Cr) ..............Bearngs-Rings-Rollers-Liners-

                                      Exhaust Valves-Seals-Shafts-Coolant Treatment 

Copper (Cu) .................Bearings-Bushings-Washers-Pumps-Gears-

                                      Pistons-Antiweear Additive
Iron (Fe)........................Blocks-Bearings-Cylinders-Pumps-Liners-Gears-

                                      Pistons-Rings-Discs-Shafts- Valves-Screws 

Lead (Pb) .....................Bearings-Additive
Magnesium (Mg) ...........Hard water-Detergents Dispersants Additive
Manganese (Mn) ...........Detergent Additive
Molybdenum (Mo) ........Rings-Friction Modifier-Anti wear Additive
Nickel (Ni) ....................Bearings-Valves-Shafts
Phosphorus (P) ..............Antiwear Additive
Silicon (Si) .....................Seals-Gaskets-Ingested Dirt-Colant Additive-                        

                                       Anti foaming Additive
Silver (Ag) .....................Bearings-Bushings-Solder
Sodium (Na) ..................Coolant Additive-Road salt-Detergent Additive
Tin (Sn) ..........................Bearings-Bushings-Pistons
Titanium (Ti) ...................Turbine Blades-Compressor Discs-Bearing Hubs

Vanadium (V) .................Valves-Coating on Metals
Zinc(Zn) ........................Anti wear /Inhibitor Additive