Engine Oil Testing

(1) Product types: gasoline engine oil, diesel engine oil, gas engine oil, motorcycle engine oil, passenger car engine oil, commercial vehicle engine oil, engineering machinery engine oil, marine engine oil, in use engine oil, new engine oil.

(2) Applicable scenarios: New oil storage acceptance, in use oil status monitoring, degradation degree determination, wear analysis, pollution level detection, oil change cycle determination, quality assessment, arbitration testing.

(1) Appearance and physical and chemical properties
Appearance, chromaticity, kinematic viscosity, viscosity index, density, flash point (open/closed), pour point, condensation point, moisture, mechanical impurities, insoluble matter, carbon residue, ash, sulfate ash, acid value, base number, foam characteristics, demulsification, air release value, low-temperature pumping, high-temperature and high shear viscosity.
(2) Pollution and degradation analysis
Moisture content, fuel dilution, ethylene glycol (coolant leakage), oxidation degree, nitrification degree, vulcanization degree, total insoluble matter, sludge and paint film tendency, particle pollution degree.
(3) Elemental analysis
Wear metals: iron, copper, lead, aluminum, chromium, tin, nickel, etc
Additive elements: calcium, magnesium, zinc, phosphorus, boron, molybdenum, etc
Polluting elements: silicon, sodium, potassium, etc
(4) Wear resistance, extreme pressure and lubrication performance
Four ball test (maximum no bite load, sintering load, wear spot diameter), wear resistance, extreme pressure, friction characteristics, oil film strength.
(5) Corrosion and rust prevention performance
Copper corrosion, liquid-phase corrosion, rust prevention, anti-corrosion, and anti foaming properties.
(6) Environmental and safety indicators
Sulfur content, phosphorus content, ash content, chlorine content, heavy metal content, and limits for harmful substances.