Mystik oil by the Numbers,,, Help

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OK you guys in the know, read the numbers for me and tell me if this oil is any good for my 2003 Kenworth T-600 truck/475 hp cummins ISX.

Mystik JT-8 15-40 syn blendTYPICAL PROPERTIES:
MYSTIK® JT-8® SYNTHETIC BLEND SUPER HEAVY DUTY ENGINE OILS


SAE Grade 6 15w40
Gravity, ASTM D 4052
°API at 60°F 29.2
Pounds/Gallon at 60°F 7.3
Specific Gravity at 60°F 0.881
Viscosity at 100°C, cSt 15.5
Viscosity at 40°C cSt,118
Viscosity Index 139

CCS Viscosity, cP,
at Temperature 6400
-20C

MRV Viscosity, cP,
at Temperature 20,900 @-20C

MRV Yield Stress, Pa,
at Temperature
Pour Point, °F -17
Flash Point, COC, °F 457

Noack Evaporative,
ASTM D 5800, % Loss 12
Color, ASTM D 1500 4.0
Total Base Number,
ASTM D 2896 11
Sulfated Ash,
ASTM D 874, % wt 1.1

NR = No Requirement
 
Yes it is.
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UPDATE
I bought this oil,10gallons on sale 44.95/5 gal can , now im worried,thats way cheap for a synthetic blend and im planing on running it in my cummins ISX 475hp engine but my ? is, is this oil less,equal to, or better than cheveron delo or shell rotella 15-40,according to the numbers in my original post above?
 
Its a little low being that its a semi-syn. This oil is a bargain, running it in two of motorcycles right now. I wouldn't mind running it in my baby cummins but I am doing yearly changes with amsoil right now.
 
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