TYPICAL TECHNICAL PROPERTIES
AMSOIL 100% Synthetic
Premium Protection 10W-40 and 20W-50 Motor Oils  (AMO, ARO)
 

    10W-40
(AMO)
  20W-50
(ARO)
Viscosity Index (ASTM D-2270)   178   178
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)   14.4   18.4
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)   84.5   115.7
CCS Viscosity @ (°C), cP (ASTM D-5293)   5429 (-25)   3605 (-15)
Pour Point °C (°F) (ASTM D-97)   -43 (-45)   -36 (-33)
High-Temperature/High-Shear Viscosity (ASTM D-4683 @ 150°C, 1.0 X 106 s.-1), cP   4.3   5.0
Four-Ball Wear Test (ASTM D-4172B @ 40 kgf, 75°C, 1200 rpm, 1 hr), Scar, mm   0.40   0.40
Noack Volatility, % weight loss (g/100g) (ASTM D-5800)   6.7   6.5
Total Base Number   12.1   12.2
Flash Point °C (°F) (ASTM D-92)   230 (446)   232 (450)
Fire Point °C (°F) (ASTM D-92)   250 (482)   254 (489)
See our Technical Properties page for descriptions of these tests.
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Revised:

 

06/06