This is my first UOA on my 2003 Explorer. I bought the car used with 15k and immediately
changed to Mobil 1. I've been running OCI's
of approx 6k with Napa Gold filters. I use
no oil between OCI's. My mileage at this UOA
was 47.000.
I recently changed to Mobil 1's 15.000 ext.
oil. I ran this OCI to 9000mi and received
this analysis.
Aluminum 9/4
Chromium 1/1
Iron 32/15
Copper 1/6
Lead 0/3
Tin 1/1
Molybdenum 68/55
Nickel 0/0
Manganese 1/1
Silver 0/0
Titanium 0/0
Potassium 0/2
Boron 112/52
Silicon 8/9
Sodium 8/11
Calcium 2712/2084
Magnesium 15/168
Phosphorus 733/729
Zinc 865/872
Barium 0/1
Comments: In the first sample from your
explorer we found excessive aluminum and iron
wear. These elements combined lead us to
believe that your engine may not be enjoying
the long oil changes, and is possibly suffering
from piston scuffing.
Universal averages are based on an oil change of
4.800mi. The oil contained no moisture, fuel or
coolant, which could have led to the excessive
wear. TBN read 2.8, still showing some additive.
Try 4.000mi to flush some of the excess wear
from the system.
From this report i'm not going to attempt any
more 9k oil changes with M1 extended 15k. I'll
follow their instructions and get another UOA
OCI after next, at 5000 mi.
Does anyone else have any suggestions or
opinions on this analysis. I neglected to add
that this analysis was based on 90% hwy and 10%
town.
Thank You...
changed to Mobil 1. I've been running OCI's
of approx 6k with Napa Gold filters. I use
no oil between OCI's. My mileage at this UOA
was 47.000.
I recently changed to Mobil 1's 15.000 ext.
oil. I ran this OCI to 9000mi and received
this analysis.
Aluminum 9/4
Chromium 1/1
Iron 32/15
Copper 1/6
Lead 0/3
Tin 1/1
Molybdenum 68/55
Nickel 0/0
Manganese 1/1
Silver 0/0
Titanium 0/0
Potassium 0/2
Boron 112/52
Silicon 8/9
Sodium 8/11
Calcium 2712/2084
Magnesium 15/168
Phosphorus 733/729
Zinc 865/872
Barium 0/1
Comments: In the first sample from your
explorer we found excessive aluminum and iron
wear. These elements combined lead us to
believe that your engine may not be enjoying
the long oil changes, and is possibly suffering
from piston scuffing.
Universal averages are based on an oil change of
4.800mi. The oil contained no moisture, fuel or
coolant, which could have led to the excessive
wear. TBN read 2.8, still showing some additive.
Try 4.000mi to flush some of the excess wear
from the system.
From this report i'm not going to attempt any
more 9k oil changes with M1 extended 15k. I'll
follow their instructions and get another UOA
OCI after next, at 5000 mi.
Does anyone else have any suggestions or
opinions on this analysis. I neglected to add
that this analysis was based on 90% hwy and 10%
town.
Thank You...