First UOA on my truck. I drive a fairly short (10 mile) highway commute during the week. Some city street driving. No real idling or mountain driving. Thoughts? Should I switch to a high mileage oil? When the AC/Delco swill was drained, I went to the Costco Kirkland synthetic.
OLM was at 4% life left.
Oil: AC/Delco Synthetic 5w30
Make up oil: 0
Miles on oil: 5544
Miles on Engine: 106442
3.6L Gasoline V6
Universal averages show typical wear for this engine type after ~5800 miles of use. That's about how long you ran this oil, and for the most part metals are in good shape next to averages. Iron is a bit high, but that might be due to how you are using this engine. Mountain driving or lots of idling can leave extra metal behind, so as long as trends prove stable from here, we wouldn't worry about poor steel wear. 1.5% fuel is typically from normal operation (like idling or short trips), and a low viscosity is harmless. Try this interval again and check back on iron.
ALUMINUM 6
CHROMIUM 0
IRON 31
COPPER 3
LEAD 0
TIN 0
MOLYBDENUM 130
NICKEL 0
MANGANESE 1
SILVER 0
TITANIUM 0
POTASSIUM 1
BORON 24
SILICON 10
SODIUM 5
CALCIUM 1020
MAGNESIUM 591
PHOSPHORUS 669
ZINC 793
BARIUM 0
cSt Viscosity @ 100°C 8.11
SUS Viscosity @ 210°F 52.8
Flashpoint in °F 355
Fuel % 1.5
Antifreeze % 0.0
Water % 0.0
Insolubles % .4
OLM was at 4% life left.
Oil: AC/Delco Synthetic 5w30
Make up oil: 0
Miles on oil: 5544
Miles on Engine: 106442
3.6L Gasoline V6
Universal averages show typical wear for this engine type after ~5800 miles of use. That's about how long you ran this oil, and for the most part metals are in good shape next to averages. Iron is a bit high, but that might be due to how you are using this engine. Mountain driving or lots of idling can leave extra metal behind, so as long as trends prove stable from here, we wouldn't worry about poor steel wear. 1.5% fuel is typically from normal operation (like idling or short trips), and a low viscosity is harmless. Try this interval again and check back on iron.
ALUMINUM 6
CHROMIUM 0
IRON 31
COPPER 3
LEAD 0
TIN 0
MOLYBDENUM 130
NICKEL 0
MANGANESE 1
SILVER 0
TITANIUM 0
POTASSIUM 1
BORON 24
SILICON 10
SODIUM 5
CALCIUM 1020
MAGNESIUM 591
PHOSPHORUS 669
ZINC 793
BARIUM 0
cSt Viscosity @ 100°C 8.11
SUS Viscosity @ 210°F 52.8
Flashpoint in °F 355
Fuel % 1.5
Antifreeze % 0.0
Water % 0.0
Insolubles % .4