This sample didn't do so well. Looks like I might have an issue, got to investigate and find the problem.
It's really not. I see nothing wrong with the above sample. As you know, TBN retention is nonlinear, and additive formulations are all proprietary and have different behaviors. It is a documented behavior of AMSOIL's detergent package to drop the TBN level very quickly, then hover above condemnation levels with very minor decreases for a long time. This behavior never correlates to an increase in soft metal wear, which is what you'd get when the alkalinity of the oil drops too low. Here's an example of a trending analysis from an HHR, which is far easier on oil than this car is.That BN seems awful low for only 6680 miles
There will always be silicone in the oil. Look at the other results. Some dirt always gets through no matter what. Your number was good. It increases with miles/km driven.It is interesting, silicone in the oil could be attributed to poor air filtration and dust making it's way into and circulating in the engine oil.
Besides me, who is running stock air filtration? I have noted before that stock air filtration provides the best protection yet providing the air flow that I need to operate my car the way that I do.
I also noticed that v100 is only slightly higher than the 10.4 on the data bulletin, soot is only 1% of tolerable levels, which makes me wonder how long I could have gone with this oil?
I am inspired enough to get the bypass filter, but the exchange rate might make it very expensive, here in Canada.
One other note though, the ISO particle count test is limited to transmission, and hydraulic oils IAW the folks at CAT.
Yes, that will increase wear metals and reduce oil life. Short trips and city driving especially.Does city driving in increase the wear metals in these oil analysis. I drive about 80% city and most of my trips are less than ten miles and I am wondering if that is why my iron and chromium are high.
Yep that is the majority of what I do. My daily drive to work is between 8 and 9 miles. All my stores are nearby and less than five minutes away. The only time I take it on the highway is part of the way to work and on the weekends which I say would be only about 10% to 20% on average.Yes, that will increase wear metals and reduce oil life. Short trips and city driving especially.
Yes, on both questions. It is tuned, and it does have larger injectors. Given that he is in NY as opposed to the last e85 sample I posted, which was in Las Vegas (practically zero humidity), the effects of e85 were much more pronounced. The viscosity starts at 10.4 and he ended up at 10.2, and since not a single other analysis has ever shown shearing of the oil with normal gasoline, that can safely be assumed to be fuel dilution with e85. Normally, an analysis like this would come back between the high 10.x and low 11.x range due to slow oxidation. The thickening effects of oxidation were negated by the thinning effects of the fuel dilution, but since it was minimal, it wasn't actually measured for the exact percentage.Do you think the E85 hurt this sample? It is tuned for it, does that include the larger injectors?