Well I finally got the results on this. For those who don't recall, this oil was drawn out of my Fram Ultra 3614 filter because I forgot to sample from the draining oil.
Just under 9,000 miles on the oil, which was drawn when the car was a hair short of 224,000 miles. Previous oil change was done 05/21/2016, so this oil also had 8 months on it. For about 1/2 of this OCI, I was in between jobs, so lots of short-trips.
All in all, not bad, but I can't help but think it would have been better if it was all highway miles (and thus also only about 3.5 months, at my current rate).
A few interesting observations:
1 - The oil used in this sample was PUP 5w20, same as in the previous sample (5/21/16), but for some reason only had 33 Boron, as opposed to 50 boron for the last one. I must assume that due to the higher miles and longer time, more of the Boron was used up?
2 - Sodium. In the sample drawn on 12/4/15, the oil was mostly Valvoline, thus the higher sodium, but then after that, I was using PUP for both the 5/21/16 and 1/22/17 samples, and PUP has 0 Sodium in it. My car uses no appreciable coolant, and the antifreeze results were 0.0 across the board, so I must assume that the values of 77 and 25 can only be the result of either a) remaining Valvoline in the sump/engine, or b) the PUP dissolving some sodium-rich varnish... Thoughts, anyone?
3 - Chromium, while not "high" was actually there, whereas it was 0 in previous samples. I have to wonder if this might have come off the finishing nails I used to poke the ADBV to drain the oil from the filter, or possibly from the filter itself? That, or my short trips actually led to a tiny bit of wear to the rings.
... also, I have NO idea why they refer to my car as a Focus.. In the documentation I sent with the sample, I clearly stated it was a Fusion.
** I'd love to get some input from everyone.
Just under 9,000 miles on the oil, which was drawn when the car was a hair short of 224,000 miles. Previous oil change was done 05/21/2016, so this oil also had 8 months on it. For about 1/2 of this OCI, I was in between jobs, so lots of short-trips.
All in all, not bad, but I can't help but think it would have been better if it was all highway miles (and thus also only about 3.5 months, at my current rate).
A few interesting observations:
1 - The oil used in this sample was PUP 5w20, same as in the previous sample (5/21/16), but for some reason only had 33 Boron, as opposed to 50 boron for the last one. I must assume that due to the higher miles and longer time, more of the Boron was used up?
2 - Sodium. In the sample drawn on 12/4/15, the oil was mostly Valvoline, thus the higher sodium, but then after that, I was using PUP for both the 5/21/16 and 1/22/17 samples, and PUP has 0 Sodium in it. My car uses no appreciable coolant, and the antifreeze results were 0.0 across the board, so I must assume that the values of 77 and 25 can only be the result of either a) remaining Valvoline in the sump/engine, or b) the PUP dissolving some sodium-rich varnish... Thoughts, anyone?
3 - Chromium, while not "high" was actually there, whereas it was 0 in previous samples. I have to wonder if this might have come off the finishing nails I used to poke the ADBV to drain the oil from the filter, or possibly from the filter itself? That, or my short trips actually led to a tiny bit of wear to the rings.
... also, I have NO idea why they refer to my car as a Focus.. In the documentation I sent with the sample, I clearly stated it was a Fusion.
** I'd love to get some input from everyone.