Lube Advisor

MAG 1® 4T 20W-50 Motor Oil

Motorcycles, Scooters, Marine and Powersports 2-Cycle, Small Engine, Motorcycle and Marine Products

MAG 1® 20-50 4T Motor Oil is specially engineered for small four stroke engines used in recreational powersports. Benefits include:

  • Formulated with conventional base stocks.
  • Special friction modifiers for wet clutch performance.
  • Recommended for snowmobiles, ATVs, personal watercraft and motorcycles that call for a 20W-50 that meets the requirements of JASO MA, JASO MA-2, or API SL.

Protection for Today’s Four Stroke Engines

Small engines have evolved dramatically, requiring highly specialized fluids for unique applications. One brand has evolved right alongside – MAG 1®. Only the most advanced oil meets the difficult challenges of effectively balancing performance, strength and durability.

Featuring FMX® Technology ™ is designed to provide unsurpassed protection.


  • Delivers superior anti-friction performance for your motorcycle or scooter .


  • Provides a strong oil film to prevent metal-to-metal contact between rotating parts to prevent wear.


  • Resists thickening due to high operating temperatures.

Industry/OEM Specifications

API SL Meets Requirements
JASO MA, MA-2, ISO-L-EMA2 Meets Requirements

Typical Properties

Cold Cranking Simulator at (°C), cP ASTM D5293 8258 (-15)
Color ASTM D1500 2.5
Flash Point °C ASTM D92 225
Flash Point °F ASTM D92 437
Gravity, °API ASTM D287 28.46
Specific Gravity @ 60°F (15.6°C) ASTM D4052 0.8846
Viscosity @ 100°C cSt ASTM D445 17.22
Viscosity @ 40°C cSt ASTM D445 159.6
Viscosity Index ASTM D2270 117

Container/Bulk Availability

6/1 Quart - Not for Sale in US Product Number - 69048
Available in Bulk