Great UOA and useful example to a fellow Modular owner. 3 ppm iron per 1,000 miles is good wear too. I wouldn't be afraid to run another 2K on that. Plenty of everything left.
I disagree with you on the premise that 5W30 is somehow "better" than 5W20, but I have proved that a 30 grade (I am running a 10W30 right now) works. In no way do I think it's optimal. Plus, as mentioned above, your M1 was barely in 30 category at the time of the UOA. In my use at least, 5W20 was very good. I did a 10K run on RP previously with similar results (and lower iron ( : < ). My 5.4L oil temp most often runs below 200F, meaning a 20 grade is running in 30 grade territory most of the time anyway. On the occasions I used my truck hard in hot weather, max oil temps still hovered at or below 212. A 30, especially a thick one like I use now, is running in 40 grade. I did check via datalogging to determine that the VVT, which was the worry in my case, operates normally in my situation, but on cold starts the heavier oil delivers some seriously high oil pressures, likely putting the oil pump into bypass at times.
As to warranty issues, if they want to be persnickety, they can deny a claim, at least initially, on two ground in your case; the 5W30 and especially the 10K-plus interval. I'm no Chicken Little on these things but you could be faced with having to push hard if there were issues. You might lose in the end if there were grey areas. A lot depends on your dealer and what were to happen. Just an FYI. But ultimately, I'm like you. I'd rather make an informed choice and live with the results instead of hershy-squirting about warranties. They ARE our trucks, after all.
I disagree with you on the premise that 5W30 is somehow "better" than 5W20, but I have proved that a 30 grade (I am running a 10W30 right now) works. In no way do I think it's optimal. Plus, as mentioned above, your M1 was barely in 30 category at the time of the UOA. In my use at least, 5W20 was very good. I did a 10K run on RP previously with similar results (and lower iron ( : < ). My 5.4L oil temp most often runs below 200F, meaning a 20 grade is running in 30 grade territory most of the time anyway. On the occasions I used my truck hard in hot weather, max oil temps still hovered at or below 212. A 30, especially a thick one like I use now, is running in 40 grade. I did check via datalogging to determine that the VVT, which was the worry in my case, operates normally in my situation, but on cold starts the heavier oil delivers some seriously high oil pressures, likely putting the oil pump into bypass at times.
As to warranty issues, if they want to be persnickety, they can deny a claim, at least initially, on two ground in your case; the 5W30 and especially the 10K-plus interval. I'm no Chicken Little on these things but you could be faced with having to push hard if there were issues. You might lose in the end if there were grey areas. A lot depends on your dealer and what were to happen. Just an FYI. But ultimately, I'm like you. I'd rather make an informed choice and live with the results instead of hershy-squirting about warranties. They ARE our trucks, after all.
