not sure of switching to AMSoil yet, not an expert in diesel oils......
***********AMSOIL Synthetic 5W-40***********
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AMSOIL - AMSOIL Synthetic 5W-40 Premium Diesel Oil (DEO)
- API CJ-4, CI-4+, CH-4, CF, SM, SL, SJ...
- Aftermarket oil additives are not recommended for use with AMSOIL motor oils.
Kinematic Viscosity @ 100°C, cSt: 15.3
Kinematic Viscosity @ 40°C, cSt: 92.6
Viscosity Index: 176
CCS Viscosity @ -30°C, cP: 5852
Flash Point °C (°F): 226 (439)
Fire Point °C (°F): 242 (468)
Pour Point °C (°F): -44 (-47)
Noack Volatility 250°C for 1 hour, % weight loss: 8.9
Four-Ball Wear Test (40kgf, 75°C, 1200 rpm, 1 hr) Scar diameter, mm: 0.44
Total Base Number: 8.00
High Temperature/High Shear Viscosity, cP: 4.2
Sulfated Ash Content, wt. %: 0.97
***********mobil delvac 1300 super 15w-40***********
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Mobil Delvac 1300 Super
- API CJ-4, CI-4 PLUS, CI-4, CH-4, CF/SM, SL
- exceed the API CJ-4, CI-4 PLUS and CH-4 service categories as well as key Original Equipment Manufacture (OEM) requirements for 2007 engines.
Mobil Delvac 1300 Super
cSt @ 100ºC: 15.0
cSt @ 40ºC: 114
CCS: 6500 @ -20ºC
MRV: 19,000 @ -25ºC
HTHS @ 150ºC: 4.3
Viscosity Index: 137
Sulfated Ash, wt%: 1.0
Total Base #, mg KOH/g: 10.5
Pour Point, ºC: -30
Flash Point, ºC: 236
Density @ 15ºC kg/l: 0.876