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- Sep 26, 2010
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Gang,
Here is 3rd UOA on my Azera. This car sees short trips and the fuel (usually) wreaks havoc on the oil. I reduced the OCI to 4K, 6 months to see how it would fare and it seems to be doing better. Since it is seeing relatively short OCIs, I replaced the QSUD with Formula Shell 5W-20 SN.
Blackstone comments follow and thoughts always welcome:
This engine has been wearing nicely ever since we first saw it last year. This is the shortest oil run we've seen so far so it would make sense that wear is lower and that's largely what we have. These low metals show no obvious problems on the horizon. Silicon is still higher than normal, but we didn't highlight it this time. It doesn't seem to be abrasive dirt since wear is so low, so we're betting it's a harmless sealant or additive of some sort. The trace of fuel from last time disappeared and low insolubles show good oil filtration. This is a nice Hyundai at 72,596 miles.
Code:
Year: 2006 Make: Hyundai Model: Azera Limited Engine: 3.8L
Date: 07/29/12 01/15/12 08/27/11
Oil Brand/Type: QSUD QSUD PP
Oil Viscosity: 5W-20 5W-20 5W-20
API Service: SN SN SM
Oil Filter: Hyundai OEM Hyundai OEM Hyundai OEM
Air Filter: Hyundai OEM Hyundai OEM Hyundai OEM
Lab: BLKST BLKST BLKST
Car Mileage: 72,596 68,557 63,700
Oil Mileage: 4,039 4,857 5,000
Aluminum: 3 5 5
Chromium 1 1 1
Iron: 8 10 8
Copper: 5 7 4
Lead: 0 0 0
Tin: 0 0 0
Molybdenum: 50 55 47
Nickel: 0 1 0
Manganese: 0 0 0
Silver: 0 0 0
Titanium: 0 0 0
Potassium: 0 6 5
Boron: 3 3 4
Silicon: 15 17 16
Sodium: 3 4 3
Calcium: 2325 2470 2432
Magnesium: 9 11 10
Phosphorus: 654 763 667
Zinc: 767 861 716
Barium: 0 0 0
SUS Viscosity @ 210°F 53.2 51.0 51.9
cSt Visc. @ 100°C 8.25 7.59 7.85
Flashpoint in °F 400 355 365
Fuel %
Antifreeze % 0.0 0.0 0.0
Water % 0.0 0.0 0.0
Insolubles % 0.1 0.2 0.2
TBN -- 4.0 --
Here is 3rd UOA on my Azera. This car sees short trips and the fuel (usually) wreaks havoc on the oil. I reduced the OCI to 4K, 6 months to see how it would fare and it seems to be doing better. Since it is seeing relatively short OCIs, I replaced the QSUD with Formula Shell 5W-20 SN.
Blackstone comments follow and thoughts always welcome:
This engine has been wearing nicely ever since we first saw it last year. This is the shortest oil run we've seen so far so it would make sense that wear is lower and that's largely what we have. These low metals show no obvious problems on the horizon. Silicon is still higher than normal, but we didn't highlight it this time. It doesn't seem to be abrasive dirt since wear is so low, so we're betting it's a harmless sealant or additive of some sort. The trace of fuel from last time disappeared and low insolubles show good oil filtration. This is a nice Hyundai at 72,596 miles.
Code:
Year: 2006 Make: Hyundai Model: Azera Limited Engine: 3.8L
Date: 07/29/12 01/15/12 08/27/11
Oil Brand/Type: QSUD QSUD PP
Oil Viscosity: 5W-20 5W-20 5W-20
API Service: SN SN SM
Oil Filter: Hyundai OEM Hyundai OEM Hyundai OEM
Air Filter: Hyundai OEM Hyundai OEM Hyundai OEM
Lab: BLKST BLKST BLKST
Car Mileage: 72,596 68,557 63,700
Oil Mileage: 4,039 4,857 5,000
Aluminum: 3 5 5
Chromium 1 1 1
Iron: 8 10 8
Copper: 5 7 4
Lead: 0 0 0
Tin: 0 0 0
Molybdenum: 50 55 47
Nickel: 0 1 0
Manganese: 0 0 0
Silver: 0 0 0
Titanium: 0 0 0
Potassium: 0 6 5
Boron: 3 3 4
Silicon: 15 17 16
Sodium: 3 4 3
Calcium: 2325 2470 2432
Magnesium: 9 11 10
Phosphorus: 654 763 667
Zinc: 767 861 716
Barium: 0 0 0
SUS Viscosity @ 210°F 53.2 51.0 51.9
cSt Visc. @ 100°C 8.25 7.59 7.85
Flashpoint in °F 400 355 365
Fuel %
Antifreeze % 0.0 0.0 0.0
Water % 0.0 0.0 0.0
Insolubles % 0.1 0.2 0.2
TBN -- 4.0 --
