This is a customers vehicle. He started running AMSOIL's OE about two years ago. This past oil change he basically didn't make it in to have it changed in over 12 months and 21,500 miles on the oil. He said he just lost track of time. The oil filter is a Car Quest Blue and not sure of his air filter. I will have to check it next time he comes in. Here is the report from Blackstone. Now remember the OE oil is supposed to be changed same as what the manufacture recommends, which in his case around 7,500 miles or so. I also have pictures of the filter cut open. CQ blue are not bad filters. I have been getting the red filters but they changed to a black can color now.
Also, his oil level was down about 3/4 of a qt. Which is amazing to have gone that long and only used that much oil. Most I change out at that high a mileage have used at least a qt.
Another thing is this was used on some what short trips. He lives 15 miles from work so 30 miles round trip. Pluse a few trips down south for work as well.
Total mileage on his truck is 214k.
Also, his oil level was down about 3/4 of a qt. Which is amazing to have gone that long and only used that much oil. Most I change out at that high a mileage have used at least a qt.
Another thing is this was used on some what short trips. He lives 15 miles from work so 30 miles round trip. Pluse a few trips down south for work as well.
Total mileage on his truck is 214k.
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Derick's Tundra doesn't look too bad, but there was more aluminum in the sample than we like to see. Iron's up,
too, but that's an element that tracks with miles and is actually good on a per mile basis. Universal averages are for an
oil run of 6,800 miles. Aluminum tends to stick closer to the average, so there was some extra piston wear. The silicon
could show dirt getting past the air cleaner, which would account for the piston wear. The TBN was very low, showing
the oil's additive package was depleted. Drop the interval to 15,000 miles and check back.
OIL AMSOIL OE 5w-30 Universal
MILES IN USE 21,500 averages
MILES 214,054
SAMPLE TAKEN 7/15/2016
ALUMINUM 6 3
CHROMIUM 1 0
IRON 17 7
COPPER 1 3
LEAD 0 1
TIN 0 1
MOLYBDENUM 64 73
NICKEL 0 0
MANGANESE 0 0
SILVER 0 0
TITANIUM 1 1
POTASSIUM 3 2
BORON 33 48
SILICON 33 14
SODIUM 18 39
CALCIUM 1918 2031
MAGNESIUM 9 226
PHOSPHORUS 619 674
ZINC 771 798
BARIUM 0 0
SUS VIS 210ºF 66.4 56-63
cSt @ 212ºF 11.98 9.1-11.3
FLASHPOINT ºF 375 >365
Fuel% <0.5 <2.0
Antifreeze% 0 0
Water% 0 <0.1
INSOLUBLES 0.3 <0.6
TBN 0.7 >1.0
TAN