Here is my third report for 2009 Hyundai Sonata (2.4L and A/T). Used NAPA kit but same lab as last time (Wix kit) -- ALS in Atlanta.
Out: Castrol GTX Synthetic blend 5w-20 & OEM filter
In: Castrol GTX Synthetic blend 5w-20 and 5w-30 mix & OEM filter
I think this is the longest OCI in terms of time (over seven months) of any car I've ever owned. The lab said everything looks fine. I see that iron is trending up and aluminum is unchanged but will hopefully come down as I poured about 2.5 quarts of 5w-30 oil when I changed it (the rest was 5w-20). Really happy that water/coolant/potassium/lead are looking good.
Questions:
- is GTX part synthetic oil known to contain 100+ ppm sodium and essentially no moly?
- are these silicon readings ok?
- should I extend to 8-9 months and 7k-8k miles?
Code:
Mls on unit 69,500 74,700 80,600
Mls on oil 6,000 5,200 5,900
Sample date 1/1/15 7/2/15 2/12/16
Aluminum 2 5 5
Chromium 0 2 1
Iron 8 9 12
Copper 0 0 2
Lead 0 0 0
Tin 0 0 0
Nickel 0 1 0
Silver 0 0 0
Molybdenum 62 21 6
Titanium 0 0 0
Calcium 1173 1579 1908
Magnesium 618 216 45
Phosphorus 897 788 641
Zinc 993 910 732
Barium 0 0 0
Boron 72 18 25
Sodium 93 269 108
Silicon 9 11 11
Potassium 2 5 0
PROPERTIES
cSt Viscosity 8.72 8.30 7.90
Coolant 0% 0% 0%
Water (%) 0% 0% 0%
TBN N/A 3.7 3.2
Out: Castrol GTX Synthetic blend 5w-20 & OEM filter
In: Castrol GTX Synthetic blend 5w-20 and 5w-30 mix & OEM filter
I think this is the longest OCI in terms of time (over seven months) of any car I've ever owned. The lab said everything looks fine. I see that iron is trending up and aluminum is unchanged but will hopefully come down as I poured about 2.5 quarts of 5w-30 oil when I changed it (the rest was 5w-20). Really happy that water/coolant/potassium/lead are looking good.
Questions:
- is GTX part synthetic oil known to contain 100+ ppm sodium and essentially no moly?
- are these silicon readings ok?
- should I extend to 8-9 months and 7k-8k miles?
Code:
Mls on unit 69,500 74,700 80,600
Mls on oil 6,000 5,200 5,900
Sample date 1/1/15 7/2/15 2/12/16
Aluminum 2 5 5
Chromium 0 2 1
Iron 8 9 12
Copper 0 0 2
Lead 0 0 0
Tin 0 0 0
Nickel 0 1 0
Silver 0 0 0
Molybdenum 62 21 6
Titanium 0 0 0
Calcium 1173 1579 1908
Magnesium 618 216 45
Phosphorus 897 788 641
Zinc 993 910 732
Barium 0 0 0
Boron 72 18 25
Sodium 93 269 108
Silicon 9 11 11
Potassium 2 5 0
PROPERTIES
cSt Viscosity 8.72 8.30 7.90
Coolant 0% 0% 0%
Water (%) 0% 0% 0%
TBN N/A 3.7 3.2