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I've reached out to Amsoil with the report and to get their input. Since I've only been buying one quart of various the DexosD oils for VOA I had already dumped the rest of the quart for disposal. I do still have the bottle so I was able to provide the batch number to Amsoil so it's not a total...

Figured I'd start a new thread since I changed oils on my '24 LZ0. This is the first UOA of the Mobil 1 ESP X2 0W-20. Iron is still coming down and is now to 7.45 ppm/1k. They note Boron is lower than normal compared to the VOA I sent in of the Mobil 1 with the last UOA of the ACDelco. I'm...

Still using the ACDelco Gold UPF66R.

Here's the latest analysis back. This is the last batch of the ACDelco DexosD and I have switched to the Mobil 1 ESP X2 0w-20. Iron is down to 8.5 ppm/1k miles, everything else looks nominal. I also used the spare quart of AC Delco I keep in the truck to pull a baseline sample and the rest to...

I've had the Banks iDash in my '24 3.0L for most of it's life to track regens and the only thing I did to reduce the fuel dilution from my first UOA was let it idle a lot less. Mainly I quit using the remote start to cool off/warm up the cab and my fuel dilution has fallen to below 2.0% since...

Here's the latest analysis back. Still went with the ACDelco Dexos D and another UPF66R filter for this change. Iron is still hovering in the low 9.X ppm/1k miles, everything else looks nominal. Total mileage: 25001 Interval mileage: 6729 Total engine hours: 576.6 Interval engine hours: 160 Oil...

Here's the latest analysis back. This is the last batch of AC Delco Dexos D oil with the standard ACDelco PF66 filter.

Just finished changing the oil to the last of the AC Delco Dexos D I had and switched from the standard AC Delco filter to the AC Delco Gold filter. I’ll get the sample shipped tomorrow and post the results as soon as I have them. Total Mileage: 18272 Oil Interval Mileage: 6131 Total Hours...

With my mileage intervals on the oil, it would put my iron content of the factory fill at 13.3 ppm/1k miles and the second fill at 9.8 ppm/1k miles. So the wear has lessened over time.

No on both changes. Don’t remember exact number on the first reset but it was under 30% life left. This past one was at 8%.

This is the first two oil analyses I've done on my 2024 GMC Sierra Duramax 3.0L LZ0 engine. Both times I've replaced the oil and filter with the ACDelco Dexos D 0W-20 oil and the PF66 filter. First sample was pulled at 5192 miles from the factory fill and the second at 12141 miles with 6949...