My EcoD's life is probably a little more severe then usual. A lot of 10mi daily commutes and monthly tows of 7-16hrs roundtrip of a ~7500lb enclosed trailer. I sent an oil sample from my second oil change to Blackstone labs. The oil load had 10k miles on it and I wanted to know if I should change the oil more often. Oil was the dealer provided Pennzoil Euro LL stuff.
Blackstone report came back with Al, Fe, and Cu about 20% high, and TBN was fine. Their recommendation was to go 11k next time.
Sure, I'd rather that the metals were a little lower, but I don't think that 20% high is alarming. The significant thing was to learn that I don't have to fret about going the whole 10k miles on an oil load.
Also, it's nice that the first 4 oil changes are free.
Blackstone report came back with Al, Fe, and Cu about 20% high, and TBN was fine. Their recommendation was to go 11k next time.
Sure, I'd rather that the metals were a little lower, but I don't think that 20% high is alarming. The significant thing was to learn that I don't have to fret about going the whole 10k miles on an oil load.
Also, it's nice that the first 4 oil changes are free.