Hello, I have just got the report for my first ever oil analysis so am eager to get some feedback from the knowledgeable folks here. I already looked at similar reports of factory oil from new cars and it appears that high Al and Si is not uncommon and even to be expected? My oil lab (in the UK) doesn't seem quite as informative (in terms of comments) as the ones I have seen on here so I'd appreciate some of your comments to put my mind at ease.
Since its factory oil I do not know what brand it is, but I believe it should be Castrol longlife 5W30. As I understand it European Audis are delivered with 'regular' fully synthetic oil, the same as is used for dealer oil changes. Just to confirm the oil miles and car miles are both 4,200 (11 months from new).
Code:
SYMPTOMS: Note levels of:- Silicon and Aluminium
DIAGNOSIS: Silicon possibly dirt or antifoaming additives in oil, aluminium is piston rings wear
ACTION: Physical properties and additive levels satisfactory. No fuel dilution
STATUS: CAUTION
PHYSICAL PROPERTIES
Viscosity @ 40°C cSt 69.2
Water Content %wt 0.0
Fuel Dilution % 0
Total Insoluble Matter %wt 0.3
Total Base Number mgKOH/g 3.2
SPECTROCHEMICAL ANALYSIS
Iron ppm 46
Chromium ppm 1
Aluminium ppm 21**
Molybdenum ppm 1
Copper ppm 35
Lead ppm 0
Tin ppm 1
Nickel ppm 1
Silicon ppm 48**
Sodium ppm 8
Boron ppm 3
Vanadium ppm 0
Calcium ppm 1676
Phosphorus ppm 633
Zinc ppm 93
Magnesium ppm 8
Barium ppm 0
Since its factory oil I do not know what brand it is, but I believe it should be Castrol longlife 5W30. As I understand it European Audis are delivered with 'regular' fully synthetic oil, the same as is used for dealer oil changes. Just to confirm the oil miles and car miles are both 4,200 (11 months from new).
Code:
SYMPTOMS: Note levels of:- Silicon and Aluminium
DIAGNOSIS: Silicon possibly dirt or antifoaming additives in oil, aluminium is piston rings wear
ACTION: Physical properties and additive levels satisfactory. No fuel dilution
STATUS: CAUTION
PHYSICAL PROPERTIES
Viscosity @ 40°C cSt 69.2
Water Content %wt 0.0
Fuel Dilution % 0
Total Insoluble Matter %wt 0.3
Total Base Number mgKOH/g 3.2
SPECTROCHEMICAL ANALYSIS
Iron ppm 46
Chromium ppm 1
Aluminium ppm 21**
Molybdenum ppm 1
Copper ppm 35
Lead ppm 0
Tin ppm 1
Nickel ppm 1
Silicon ppm 48**
Sodium ppm 8
Boron ppm 3
Vanadium ppm 0
Calcium ppm 1676
Phosphorus ppm 633
Zinc ppm 93
Magnesium ppm 8
Barium ppm 0