The 9k and 12k miles are on the same fill of Amsoil AME. The previous 6k and 8k miles were with Valvoline Premium Blue Extreme.
I'm very puzzled by Blackstone's comments, and was wondering if I missing something. My Iron level is at 11ppm @ 12k miles, universal average for this engine is 13ppm @ 6.6k miles. The iron comment was the first thing that didn't seem right. Then looking at all my wear levels which are well below universal averages, good viscosity, low insolubles, low fuel, and high TBN...why only 2k more miles on this fill? I emailed them back asking the same questions, I'm still fairly new to UOA's so perhaps I'm just missing something here...
When I took the 12k sample, I did notice the engine was right at 1 quart low on oil. That was added after the sample was taken, and I did add that to the comments section for Blackstone. Maybe that is where the concern was?
I'm very puzzled by Blackstone's comments, and was wondering if I missing something. My Iron level is at 11ppm @ 12k miles, universal average for this engine is 13ppm @ 6.6k miles. The iron comment was the first thing that didn't seem right. Then looking at all my wear levels which are well below universal averages, good viscosity, low insolubles, low fuel, and high TBN...why only 2k more miles on this fill? I emailed them back asking the same questions, I'm still fairly new to UOA's so perhaps I'm just missing something here...
When I took the 12k sample, I did notice the engine was right at 1 quart low on oil. That was added after the sample was taken, and I did add that to the comments section for Blackstone. Maybe that is where the concern was?