Can I trust the Intelligent Oil Life Monitor on my Ford?
That is why I took these two tests. One was at 5K. This one was at 8200 miles a couple days after the "engine oil change soon" light came on. This is still the first change after factory fill. Don't worry. I already changed the oil. (It was almost a year old anyway). This is the oil that was the subject of "guess my TBN" a few months ago, where the forum guessed my true TBN of 2.1 with incredible precision.
I would characterize the use for the first test as severe: less than four mile commute twice a day, almost no highway miles, sub-freezing temps many days. Afterwards was much easier: An occasional highway run of 100 miles every three weeks or so, commute of 7 miles or so, warmer weather. Consequently, oil that I expected to wink out at 7.2K or 7.5K went to 8.2K.
Bonus points: how in the world could it be that viscosity and insolubles improves from 5K to 8.2K? How is it that some add pack numbers could seemingly improve?
Per Blackstone:
"It might be a little early to launch into longer
oil changes, although all in all your F-150 handled the extra miles pretty well. There's still some break-in stuff floating around the system. And that and the longer oil run is the reason that most metals (and silicon) went up in this sample. No harm done though--once you change this oil (we'd probably change it soon)everything should come down closer to the average. The TAN reads 3.8, so the oil is getting acidic--over 4.0 is "acidic" in our book. The TBN shows some active additive remaining."
8.2 number ("change Oil" IOLM) 5K numbers (33% IOLM)
Aluminum 11 9
chromium 1 0
iron 29 22
copper 96 78
lead 1 1
tin 0 0
molybdenum 77 76
nickel 1 1
Manganese 26 28
Silver 0 0
Titanium 1 1
Potassium 6 2
Boron 85 131
Silicon 46 36
Sodium 9 8
Calcium 2357 2211
Magnesium 13 13
Phosphorus 832 801
Zinc 901 879
Barium 3 3
SUS Viscosity @ 210 degrees F 53.0 50.9 [ should be:46-59]
Cst Viscosity @ 100 degrees C 8.19 7.54 [ should be: 6.0 -10.2]
Flashpoint: 445 degrees farenheit 425 degrees farenheit [should be greater than
355 degrees farenheit]
Fuel % less than 0.5% less than 0.5%
Antifreeze 0 0
Water 0 0
TBN 1.7 2.1
TAN 3.8 --
I will let you guys go first.
That is why I took these two tests. One was at 5K. This one was at 8200 miles a couple days after the "engine oil change soon" light came on. This is still the first change after factory fill. Don't worry. I already changed the oil. (It was almost a year old anyway). This is the oil that was the subject of "guess my TBN" a few months ago, where the forum guessed my true TBN of 2.1 with incredible precision.
I would characterize the use for the first test as severe: less than four mile commute twice a day, almost no highway miles, sub-freezing temps many days. Afterwards was much easier: An occasional highway run of 100 miles every three weeks or so, commute of 7 miles or so, warmer weather. Consequently, oil that I expected to wink out at 7.2K or 7.5K went to 8.2K.
Bonus points: how in the world could it be that viscosity and insolubles improves from 5K to 8.2K? How is it that some add pack numbers could seemingly improve?
Per Blackstone:
"It might be a little early to launch into longer
oil changes, although all in all your F-150 handled the extra miles pretty well. There's still some break-in stuff floating around the system. And that and the longer oil run is the reason that most metals (and silicon) went up in this sample. No harm done though--once you change this oil (we'd probably change it soon)everything should come down closer to the average. The TAN reads 3.8, so the oil is getting acidic--over 4.0 is "acidic" in our book. The TBN shows some active additive remaining."
8.2 number ("change Oil" IOLM) 5K numbers (33% IOLM)
Aluminum 11 9
chromium 1 0
iron 29 22
copper 96 78
lead 1 1
tin 0 0
molybdenum 77 76
nickel 1 1
Manganese 26 28
Silver 0 0
Titanium 1 1
Potassium 6 2
Boron 85 131
Silicon 46 36
Sodium 9 8
Calcium 2357 2211
Magnesium 13 13
Phosphorus 832 801
Zinc 901 879
Barium 3 3
SUS Viscosity @ 210 degrees F 53.0 50.9 [ should be:46-59]
Cst Viscosity @ 100 degrees C 8.19 7.54 [ should be: 6.0 -10.2]
Flashpoint: 445 degrees farenheit 425 degrees farenheit [should be greater than
355 degrees farenheit]
Fuel % less than 0.5% less than 0.5%
Antifreeze 0 0
Water 0 0
TBN 1.7 2.1
TAN 3.8 --
I will let you guys go first.
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