Passenger Car Motor Oils

20W-50 Motor Oil

20W-50 Motor Oil

MAG 1 20W-50 Passenger Car Motor Oil contains only the highest quality, hydrotreated, paraffinic lubricating oils and a technologically advanced additive system, which includes detergents, dispersants, viscosity improver, anti-wear and anti-friction agents, and oxidation and corrosion inhibitors.

Benefits of MAG 1 20W-50 include:

  • Reduced friction for excellent protection against engine wear and improved fuel economy
  • High resistance to viscosity and thermal breakdown
  • Fights volatility burn-off to minimize engine deposits and exhaust emissions


For product numbers and detailed packaging information, please click on the pack size listed on the right hand side of the page.

Inspection Data Typical Physical Properties of
MAG 1 20W-50 Motor Oil
Specific Gravity @ 60°F (15.6°C) ASTM D4052 0.8782
Viscosity @ 40°C cSt ASTM D445 169.8
Viscosity @ 100°C cSt ASTM D445 19
Pour Point °C (°F) ASTM D5950 -33°C (-27°F)
Viscosity Index ASTM D2270 127
Cold Cranking Simulator at (°C), cP ASTM D5293 7014 (-15)
High Temperature / High Shear Vis at 150°C, cP ASTM D5481 4.85
Noack Volatility, % loss ASTM D6375 5.1
Color ASTM D1500 3
Zinc, wt. % ASTM D5185 0.085
Phosphorus, wt. % ASTM D5185 0.077
Calcium, wt. % ASTM D5185 0.19
Sulfur, wt. % ASTM D4951 0.3
Boron, wt. % ASTM D5185 0.018
Molybdenum, wt. % ASTM D5185 0.004
Sulfated Ash, wt. % ASTM D874 0.92
Nitrogen, wt. % ASTM D4629 0.084
Pumping Viscosity at (°C), cP ASTM D4684 21,900 (-15)
Foam Seq. I (Tendency/Stability), mL ASTM D892 (Opt. A) 0/0
Foam Seq. II (Tendency/Stability), mL ASTM D892 (Opt. A) 0/0
Foam Seq. III (Tendency/Stability), mL ASTM D892 (Opt. A) 0/0
High Temperature Foaming, static foam ASTM D6082 (Opt A) 10/0
Gravity, °API ASTM D287 29.63
TBN, mgKOH/g ASTM D2896 7.0
Flash Point °C ASTM D92 240
Flash Point °F ASTM D92 464
Shear Stability, Final Viscosity in cSt ASTM D6278 15.15

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