Originally Posted By: czbrian
Originally Posted By: A_Harman
I'll tell you what they've done. They've taken an oil I've run successfully for years, and turned it into some kind of a wimpy near-beer.
These are all the metals that were present. Where is Moly?
The zddp content has really dropped off.
Magnesium is almost gone, compared to the previous formulation.
This doesn't look like a long life oil anymore.
I think I need to start considering alternatives.
I dont understand why you are complaining. In the UOA you posted your wear metals are lower than previous samples. Other than a slightly lower TBN, the oil is working just fine.
Yes, the wear metals are low because the remaining tribofilm from the previous 300k miles of running oils with 1200 ppm of Phosphorous is still there. So what happens after the next 50k miles of running the lower zddp oil? That will be in about 5 months, based on my current rate of accumulating miles.
I could start dosing the oil with ZDDPlus, I suppose.
Originally Posted By: A_Harman
I'll tell you what they've done. They've taken an oil I've run successfully for years, and turned it into some kind of a wimpy near-beer.
These are all the metals that were present. Where is Moly?
The zddp content has really dropped off.
Magnesium is almost gone, compared to the previous formulation.
This doesn't look like a long life oil anymore.
I think I need to start considering alternatives.
I dont understand why you are complaining. In the UOA you posted your wear metals are lower than previous samples. Other than a slightly lower TBN, the oil is working just fine.
Yes, the wear metals are low because the remaining tribofilm from the previous 300k miles of running oils with 1200 ppm of Phosphorous is still there. So what happens after the next 50k miles of running the lower zddp oil? That will be in about 5 months, based on my current rate of accumulating miles.
I could start dosing the oil with ZDDPlus, I suppose.