- Joined
- Sep 8, 2022
- Messages
- 44
Vehicle: 2005 Buick LaCrosse CXL
Engine: Buick 3800 Series III
Miles on car: 160,970
Miles on oil: 3,689
Oil Used: Frankenblend
1 qt Pennzoil Platinum HM 10w30 SP
1 qt Pennzoil Platinum HM 5w30 SN
1 qt Pennzoil Platinum 5w30 SP
1 qt Quaker State Full Synthetic 10w30 SP
.8 qt Pennzoil Platinum Euro L 5w30 SN
Filter: ACDelco PF47E
Here is the oil analysis for the Frankenblend that I ran in my LaCrosse this spring. It turns out that blending
a bunch of Shell/Pennzoil products together produces an oil that is, well, not much different than the
previous oils (STP and PP) I used.
The first run dated 10/29/22 was STP Full Synthetic 5w-30.
The second run dated 3/18/23 was Pennzoil Platinum 5w-30.
Compared to those oils, and accounting for the mileage difference from run to run, the
level of calcium, moly, phosphorus, and zinc of the Frankenblend was very similar. The magnesium level
was lower than the other oils. With the exception of the magnesium, the differences
look like noise to me.
The Frankenblend held viscosity better than the STP (although fuel dilution was a problem with
that run) and slightly worse than the PP, although not by much. Again, could be noise.
Funny enough, the wear metals were actually the best of the three. But again, the differences are small.
As before, I had to top off about half a quart during the run, which isn't much for an old 3800.
Visually, the spots on the garage floor from the leak are smaller for this run, not that they were big
in the first place.
Overall, the Frankenblend was not significantly different than the previous oils and was certainly
no worse from the look of the wear metals. The engine is healthy for its age, with no sign of
coolant in the oil, which is my main reason I do these UOAs.
The current fill is Pennzoil Platinum High Mileage 10w-30. I will run this oil for between 3500 and 4000
miles, which is the target I shoot for. Blackstone thinks I could go up to 6000, but oil is cheap
and I sleep better with a shorter run.
Thoughts?
Engine: Buick 3800 Series III
Miles on car: 160,970
Miles on oil: 3,689
Oil Used: Frankenblend
1 qt Pennzoil Platinum HM 10w30 SP
1 qt Pennzoil Platinum HM 5w30 SN
1 qt Pennzoil Platinum 5w30 SP
1 qt Quaker State Full Synthetic 10w30 SP
.8 qt Pennzoil Platinum Euro L 5w30 SN
Filter: ACDelco PF47E
Here is the oil analysis for the Frankenblend that I ran in my LaCrosse this spring. It turns out that blending
a bunch of Shell/Pennzoil products together produces an oil that is, well, not much different than the
previous oils (STP and PP) I used.
The first run dated 10/29/22 was STP Full Synthetic 5w-30.
The second run dated 3/18/23 was Pennzoil Platinum 5w-30.
Compared to those oils, and accounting for the mileage difference from run to run, the
level of calcium, moly, phosphorus, and zinc of the Frankenblend was very similar. The magnesium level
was lower than the other oils. With the exception of the magnesium, the differences
look like noise to me.
The Frankenblend held viscosity better than the STP (although fuel dilution was a problem with
that run) and slightly worse than the PP, although not by much. Again, could be noise.
Funny enough, the wear metals were actually the best of the three. But again, the differences are small.
As before, I had to top off about half a quart during the run, which isn't much for an old 3800.
Visually, the spots on the garage floor from the leak are smaller for this run, not that they were big
in the first place.
Overall, the Frankenblend was not significantly different than the previous oils and was certainly
no worse from the look of the wear metals. The engine is healthy for its age, with no sign of
coolant in the oil, which is my main reason I do these UOAs.
The current fill is Pennzoil Platinum High Mileage 10w-30. I will run this oil for between 3500 and 4000
miles, which is the target I shoot for. Blackstone thinks I could go up to 6000, but oil is cheap
and I sleep better with a shorter run.
Thoughts?
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