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- Sep 26, 2010
- Messages
- 9,807
Gang,
Here is a VOA of M1 5W-20 SN (Non-EP). Nothing special that I see, BUT I would like to point out the TAN level. While some may assume a virgin motor oil would have a TAN of 0.0, one can clearly see this is not the case. Seeing this may help one understand that just because the TAN number "crosses" the TBN this is not necessarily a condemnation point since (in this case) the TAN started at nearly 3.0 and (at least I) believe it is the TAN overall increase that matters. Right, Wrong, Other?
Discuss and enjoy!
Code:
Date: 10/13
Oil Brand/Type: M1
Oil Viscosity: 5W-20
API Service: SN
Lab: BLKST
Aluminum: 0
Chromium 0
Iron: 1
Copper: 0
Lead: 0
Tin: 0
Molybdenum: 67
Nickel: 0
Manganese: 0
Silver: 0
Titanium: 0
Potassium: 6
Boron: 79
Silicon: 5
Sodium: 1
Calcium: 974
Magnesium: 739
Phosphorus: 634
Zinc: 755
Barium: 0
cSt Visc. @ 100°C 8.60
SUS Viscosity @ 210°F 54.4
Flashpoint in °F 415
Fuel % 0.0
Antifreeze % 0.0
Water % 0.0
Insolubles % 0.0
TBN 9.0
TAN 2.9
Here is a VOA of M1 5W-20 SN (Non-EP). Nothing special that I see, BUT I would like to point out the TAN level. While some may assume a virgin motor oil would have a TAN of 0.0, one can clearly see this is not the case. Seeing this may help one understand that just because the TAN number "crosses" the TBN this is not necessarily a condemnation point since (in this case) the TAN started at nearly 3.0 and (at least I) believe it is the TAN overall increase that matters. Right, Wrong, Other?
Discuss and enjoy!
Code:
Date: 10/13
Oil Brand/Type: M1
Oil Viscosity: 5W-20
API Service: SN
Lab: BLKST
Aluminum: 0
Chromium 0
Iron: 1
Copper: 0
Lead: 0
Tin: 0
Molybdenum: 67
Nickel: 0
Manganese: 0
Silver: 0
Titanium: 0
Potassium: 6
Boron: 79
Silicon: 5
Sodium: 1
Calcium: 974
Magnesium: 739
Phosphorus: 634
Zinc: 755
Barium: 0
cSt Visc. @ 100°C 8.60
SUS Viscosity @ 210°F 54.4
Flashpoint in °F 415
Fuel % 0.0
Antifreeze % 0.0
Water % 0.0
Insolubles % 0.0
TBN 9.0
TAN 2.9