Redline 5w-50 may approximate the TWS more closely.
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API Service Class SN/SM/SL/CF
SAE Viscosity Grade (Motor Oil) 5W50
Vis @ 100°C 21.0
Vis @ 40°C 130
Viscosity Index 186
CCS Viscosity, Poise, @*C 60@-30
Pour Point, °C -45
Pour Point, °F -49
Flash Point, °C 232
Flash Point, °F 450
NOACK Evaporation Loss,1hr @ 482°F (250°C), % 6
HTHS Vis, cP @150°C, ASTM D4741 5.0
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API Service Class SN/SM/SL/CF
SAE Viscosity Grade (Motor Oil) 5W50
Vis @ 100°C 21.0
Vis @ 40°C 130
Viscosity Index 186
CCS Viscosity, Poise, @*C 60@-30
Pour Point, °C -45
Pour Point, °F -49
Flash Point, °C 232
Flash Point, °F 450
NOACK Evaporation Loss,1hr @ 482°F (250°C), % 6
HTHS Vis, cP @150°C, ASTM D4741 5.0