Hi All! I'm new, just registered and thought I'd see what people think about my UOA. This is also my very first UOA so I'm having trouble figuring out the details. I'm interested in both the big picture of how healthy my engine is at 132k miles, and also I'm very interested (and why I did the analysis now) in understanding how to read the UOA so I can decide when the oil needs changing. My ML takes 8 quarts of Mobil 1, so it's plenty expensive and I don't want to change it if it's still good at 8k miles. I split my time between 2 vehicles so this oil has 2 years on it, May 2013, I don't know if that matters. I'm kind of surprised I can't just attach my UOA printout, I guess I have to just type it in manually. The testing was done by WIX. Other info: I've used a half dozen doses of Lucas Upper Cylinder Lubricant in the past 2 years because I heard it was good for old engines. It just has a Fram filter, but I put in an oil filter magnet to catch particles and keep them out of circulation.
Does my oil need changing? What do I look at to know when it needs changing? Should I change to a fleece filter mid-oil use? Thanks!!!
Iron 14
Chromium 1
Lead 21
Copper 26
Tin 1
Aluminum 12
Nickle 6
all other metals Si 13
Na 12
K 6
Mg 231
Ca 2633
Ba P 845
Zn 1013
Mo 75
B 84
Water % < 0.05
Coolant No
Viscosity 12.1
Base Number 2.7
Does my oil need changing? What do I look at to know when it needs changing? Should I change to a fleece filter mid-oil use? Thanks!!!
Iron 14
Chromium 1
Lead 21
Copper 26
Tin 1
Aluminum 12
Nickle 6
all other metals Si 13
Na 12
K 6
Mg 231
Ca 2633
Ba P 845
Zn 1013
Mo 75
B 84
Water % < 0.05
Coolant No
Viscosity 12.1
Base Number 2.7