Hey all...
Just purchased this truck last October... Changed oil first time in January with Rotella T6. Changed again in July at 6 months and 4200 miles for her first UOA (wanted to start a baseline).
Blackstone Comments:
Universal averages show typical wear levels for this type of engine after about 6,700 miles on the
oil. This oil wasn't in use that long, but with wear metals comparing so nicely with universal averages,
there's no reason why you can't run longer next time. The viscosity is correct for 5W/40 and there's no fuel
or coolant to worry about here. The oil and air filters had no trouble keeping insolubles and silicon low. The
TBN is solid at 7.9 and shows more than enough active additive remaining. Try going up to 6,500 miles on
the next oil and check back.
Results:
Unit: Avg:
Miles on Oil 4,272
Miles on Unit: 101,142
Sample Date: 7/21/14
Make Up Added: 0
Aluminum: 2 3
Chromium: 1 1
Iron: 21 25
Copper: 4 5
Lead: 1 2
Tin: 0 1
Molybdenum: 54 38
Nickel: 1 0
Manganese: 0 0
Silver: 1 1
Titanium: 0 1
Potassium: 1 5
Boron: 49 82
Silicon: 3 5
Sodium: 5 5
Calcium: 1056 2231
Magnesium: 1178 419
Phosphorus: 1174 1112
Zinc: 1338 1297
Barium: 0 0
Result Should Be
Sus Visc. @212: 74.9 66-78
cSt Visc. @ 100: 14.22 11.9-15.3
Flashpoint in F: 445 >410
Fuel %: Antifreeze %: 0 0
Water %: 0 Insolubles %: 0.3 TBN: 7.9 >1.0
Overall I was very pleased with the results... No concerns... Was very happy to see the % fuel number too!
What do you guys thing... Go by blackstones recommendation of 6500 miles for next OCI or push it further?
Just purchased this truck last October... Changed oil first time in January with Rotella T6. Changed again in July at 6 months and 4200 miles for her first UOA (wanted to start a baseline).
Blackstone Comments:
Universal averages show typical wear levels for this type of engine after about 6,700 miles on the
oil. This oil wasn't in use that long, but with wear metals comparing so nicely with universal averages,
there's no reason why you can't run longer next time. The viscosity is correct for 5W/40 and there's no fuel
or coolant to worry about here. The oil and air filters had no trouble keeping insolubles and silicon low. The
TBN is solid at 7.9 and shows more than enough active additive remaining. Try going up to 6,500 miles on
the next oil and check back.
Results:
Unit: Avg:
Miles on Oil 4,272
Miles on Unit: 101,142
Sample Date: 7/21/14
Make Up Added: 0
Aluminum: 2 3
Chromium: 1 1
Iron: 21 25
Copper: 4 5
Lead: 1 2
Tin: 0 1
Molybdenum: 54 38
Nickel: 1 0
Manganese: 0 0
Silver: 1 1
Titanium: 0 1
Potassium: 1 5
Boron: 49 82
Silicon: 3 5
Sodium: 5 5
Calcium: 1056 2231
Magnesium: 1178 419
Phosphorus: 1174 1112
Zinc: 1338 1297
Barium: 0 0
Result Should Be
Sus Visc. @212: 74.9 66-78
cSt Visc. @ 100: 14.22 11.9-15.3
Flashpoint in F: 445 >410
Fuel %: Antifreeze %: 0 0
Water %: 0 Insolubles %: 0.3 TBN: 7.9 >1.0
Overall I was very pleased with the results... No concerns... Was very happy to see the % fuel number too!
What do you guys thing... Go by blackstones recommendation of 6500 miles for next OCI or push it further?