From Polaris Industries - MSDS 0W-40 Synthetic
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES
Vapor pressure: Negligible at ambient conditions.
API gravity: 35.2 at 15.6°C (60.0°F).
Density: 7.07 lbs/gal at 15.6°C (60.0°F).
Specific gravity: 0.849 at 15.6°C (60.0°F).
Solubility: Negligible in water, soluble in most petroleum solvents.
Percent volatile: Negligible.
Vapor density (air=1): Greater than air.
Evaporation rate
(n-Butyl Acetate=1):
Negligible.
Odor: Mild, bland hydrocarbon odor.
Appearance: Green, slightly viscous fluid.
Viscosity: 14.0 cSt at 100°C (212°F).
70.0 cSt at 40°C (104°F).
Boiling point: Not determined.
Pour point: -50°C (-58°F) maximum.
Other: Not determined.