I'm using a K&N Air Filter on both my Pathfinder and Tribute and got similar silicon reports. Is it the area I live in? Should I clean them more often? Is K&N really as good as they say?
http://www.bobistheoilguy.com/forums/ubb...132#Post2961132
2005 Mazda Tribute i (4cyl)
Oil Use Interval: 4,978 mi
Oil: Kendall synthetic blend 5W-20
(just changed to Mobil 1 full syn after collection)
Blackstone Report: Thanks for the notes. We suggest taking a warm sample to avoid any false fuel readings, which we didn't find here. We did find high silicon in this first sample from your Mazda 2.3L engine and that could show some abrasive dirt getting past the air filter or harmless sealers if any repairs were made. Check the air filter/intake system for problems. The viscosity was on target for a 5W/20-grade oil and no fuel, coolant, or water contamination was found. Insolubles read 0.4%, showing good oil filtration. Try around 7,000 miles next and check back to establish wear trends.
ALUMINUM 3 / 4
CHROMIUM 0 / 0
IRON 7 / 11
COPPER 3 / 8
LEAD 0 / 1
TIN 1 / 1
MOLYBDENUM 73 / 80
NICKEL 0 / 0
MANGANESE 0 / 1
SILVER 0 / 0
TITANIUM 88 / 0
POTASSIUM 1 / 2
BORON 53 / 50
SILICON 20 / 7
SODIUM 14 / 34
CALCIUM 2318 / 2231
MAGNESIUM 11 / 77
PHOSPHORUS 666 / 682
ZINC 780 / 813
BARIUM 0 / 0
SUS Viscosity @ 210°F: 54.6 / 46-57
cSt Viscosity @ 100°C: 8.65 / 6.0-9.7
Flashpoint in °F: 370 / >355
Fuel %: ,0.5 / Antifreeze %: 0 / 0
Water %: 0 / Insolubles %: 0.4 / TBN
TAN
ISO Code
http://www.bobistheoilguy.com/forums/ubb...132#Post2961132
2005 Mazda Tribute i (4cyl)
Oil Use Interval: 4,978 mi
Oil: Kendall synthetic blend 5W-20
(just changed to Mobil 1 full syn after collection)
Blackstone Report: Thanks for the notes. We suggest taking a warm sample to avoid any false fuel readings, which we didn't find here. We did find high silicon in this first sample from your Mazda 2.3L engine and that could show some abrasive dirt getting past the air filter or harmless sealers if any repairs were made. Check the air filter/intake system for problems. The viscosity was on target for a 5W/20-grade oil and no fuel, coolant, or water contamination was found. Insolubles read 0.4%, showing good oil filtration. Try around 7,000 miles next and check back to establish wear trends.
ALUMINUM 3 / 4
CHROMIUM 0 / 0
IRON 7 / 11
COPPER 3 / 8
LEAD 0 / 1
TIN 1 / 1
MOLYBDENUM 73 / 80
NICKEL 0 / 0
MANGANESE 0 / 1
SILVER 0 / 0
TITANIUM 88 / 0
POTASSIUM 1 / 2
BORON 53 / 50
SILICON 20 / 7
SODIUM 14 / 34
CALCIUM 2318 / 2231
MAGNESIUM 11 / 77
PHOSPHORUS 666 / 682
ZINC 780 / 813
BARIUM 0 / 0
SUS Viscosity @ 210°F: 54.6 / 46-57
cSt Viscosity @ 100°C: 8.65 / 6.0-9.7
Flashpoint in °F: 370 / >355
Fuel %: ,0.5 / Antifreeze %: 0 / 0
Water %: 0 / Insolubles %: 0.4 / TBN
TAN
ISO Code