Accidentally posted this to the general section before:
I had a UOA done today that returned 6.5% fuel content in the oil. This is after 11,500km (7200 miles) running Amsoil ASM 5w20 w/ an Amsoil filter. Used Castrol Edge w/ Wix filters previous to this oil change. The engine was hot when the sample was taken, a few minutes after parking.
Any ideas what might be causing this? The engine runs fine, used mainly for commuting to work 13km (8 miles) each way on the highway, but also longer road trips. I plan to install new plugs, as the current set have 120000km (75k miles), but I'm wondering if I might have a leaking injector. Anyone know how to test or diagnose this? UOA results below:
Aluminum: 9
Chromuim: 2
Copper: 1
Iron: 18
Lead: 0
Silicon: 15
Tin: 0
Silver: 0
Nickel: 0
Sodium: 12
Boron: 88
Calcium: 3079
Magnesium: 163
Zinc: 710
Phosphorus: 706
TAN: 0.14
TBN: 3.46
Fuel: 6.5%
Water: 0
Glycol: 0
Visc @40C: 47.3
I had a UOA done today that returned 6.5% fuel content in the oil. This is after 11,500km (7200 miles) running Amsoil ASM 5w20 w/ an Amsoil filter. Used Castrol Edge w/ Wix filters previous to this oil change. The engine was hot when the sample was taken, a few minutes after parking.
Any ideas what might be causing this? The engine runs fine, used mainly for commuting to work 13km (8 miles) each way on the highway, but also longer road trips. I plan to install new plugs, as the current set have 120000km (75k miles), but I'm wondering if I might have a leaking injector. Anyone know how to test or diagnose this? UOA results below:
Aluminum: 9
Chromuim: 2
Copper: 1
Iron: 18
Lead: 0
Silicon: 15
Tin: 0
Silver: 0
Nickel: 0
Sodium: 12
Boron: 88
Calcium: 3079
Magnesium: 163
Zinc: 710
Phosphorus: 706
TAN: 0.14
TBN: 3.46
Fuel: 6.5%
Water: 0
Glycol: 0
Visc @40C: 47.3