2002 Buick Century, M1 0w40 LL01, 5,522 miles
- Thread starter 901Memphis
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That's another note for all my uoas, I usually drive it pretty hard, definitely don't baby it with this sweet shifting transmission
TBN is pretty low. Blackstone error?
Originally Posted By: 901Memphis
I don't think I've worn out all the lead yet because copper is within normal limits. Most gm engines throw lots more copper than this in healthy condition.
I also noted my silicon dropped because the air filter has been in for over two years now undisturbed. I am thinking this helped wear too.
Though the oil appears normal, there is abnormal and unusual boundary lubrication/physical contact in the bearings, and obvious failures in achieving hydrodynamic lubrication regimes.
Hence, Addyguy's recommendation above of 15W40 makes perfect sense.
I would consider venturing into xW50 in this application.
I don't think I've worn out all the lead yet because copper is within normal limits. Most gm engines throw lots more copper than this in healthy condition.
I also noted my silicon dropped because the air filter has been in for over two years now undisturbed. I am thinking this helped wear too.
Though the oil appears normal, there is abnormal and unusual boundary lubrication/physical contact in the bearings, and obvious failures in achieving hydrodynamic lubrication regimes.
Hence, Addyguy's recommendation above of 15W40 makes perfect sense.
I would consider venturing into xW50 in this application.
Originally Posted By: camrydriver111
TBN is pretty low. Blackstone error?
3.0 isn't that low, these are almost all city miles
TBN is pretty low. Blackstone error?
3.0 isn't that low, these are almost all city miles
Originally Posted By: zeng
Originally Posted By: 901Memphis
I don't think I've worn out all the lead yet because copper is within normal limits. Most gm engines throw lots more copper than this in healthy condition.
I also noted my silicon dropped because the air filter has been in for over two years now undisturbed. I am thinking this helped wear too.
Though the oil appears normal, there is abnormal and unusual boundary lubrication/physical contact in the bearings, and obvious failures in achieving hydrodynamic lubrication regimes.
Hence, Addyguy's recommendation above of 15W40 makes perfect sense.
I would consider venturing into xW50 in this application.
No way I'd run anything thicker than Rotella T6 5w40, it gets pretty cold in the winter
Originally Posted By: 901Memphis
I don't think I've worn out all the lead yet because copper is within normal limits. Most gm engines throw lots more copper than this in healthy condition.
I also noted my silicon dropped because the air filter has been in for over two years now undisturbed. I am thinking this helped wear too.
Though the oil appears normal, there is abnormal and unusual boundary lubrication/physical contact in the bearings, and obvious failures in achieving hydrodynamic lubrication regimes.
Hence, Addyguy's recommendation above of 15W40 makes perfect sense.
I would consider venturing into xW50 in this application.
No way I'd run anything thicker than Rotella T6 5w40, it gets pretty cold in the winter
I wasn't done experimenting yet i wanted to try M1 0w30 as well.
Adding the image through the forum uploader for future searchs.
Originally Posted By: KCJeep
Originally Posted By: 901Memphis
Unfortunately the lower intake manifold gaskets have been replaced once already but it was right before I took ownership so I don't think they used the problem solver gaskets.
Bar's Leaks liquid copper LIM gasket sealer has fixed a couple of those stupid things for me. Worth a shot.
That would be a temporary fix at best, besides, he shows no evidence of coolant leakage.
Originally Posted By: 901Memphis
Unfortunately the lower intake manifold gaskets have been replaced once already but it was right before I took ownership so I don't think they used the problem solver gaskets.
Bar's Leaks liquid copper LIM gasket sealer has fixed a couple of those stupid things for me. Worth a shot.
That would be a temporary fix at best, besides, he shows no evidence of coolant leakage.
Originally Posted By: 901Memphis
Also note that I got a trace rating in insolubles with the Fram Ultra
What filters were you using before?
I am thinking if trying a Fram Ultra after finding visible metal particles using Denso and Toyota branded filters.
Also note that I got a trace rating in insolubles with the Fram Ultra
What filters were you using before?
I am thinking if trying a Fram Ultra after finding visible metal particles using Denso and Toyota branded filters.
Originally Posted By: rustypigeon
901Memphis said:
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