Here's my first UOA for this car. Thanks to George and the good folks at AV Lube for the analysis.
2004 VW Jetta TDI PD
Miles on car: 40,259
Miles on oil: 10,205
Oil: Motul Technosynthese 505.01 spec 5W-40
Iron 68
Chromium 2
Lead 3
Copper 11
Tin 0
Aluminum 8
Nickel 1
Silver 0
Silicon 4
Boron 1
Sodium 8
Potassium 5
Magnesium 10
Calcium 2632
Phosphorus 944
Zinc 1034
Molybdenum 0
Fuel A
Water Glycol N
Viscosity @100c 14.3
Soot 0.6
Oxidation 15.00
Nitration 10.00
Comments: "Wear and contamination levels appear normal. No corrective action indicated by tests performed. Continue normal PM and sample interval."
My comments: I'm wondering about the Iron and Copper levels. TBN is very high too. Is the 100c visc the result of soot thickening? No makeup oil was added/needed during the test interval. Oil consumption has been zero since 20k miles. Fuel used was almost exclusively BP #2 diesel with 4oz. Stanadyne Performance Formula per tankful. This car delivers exceptional mileage even for a TDI. I normally get 55 miles per gallon, but have achieved 60 with very conservative driving habits.
I welcome any comments from the gallery at large.
Thanks
2004 VW Jetta TDI PD
Miles on car: 40,259
Miles on oil: 10,205
Oil: Motul Technosynthese 505.01 spec 5W-40
Iron 68
Chromium 2
Lead 3
Copper 11
Tin 0
Aluminum 8
Nickel 1
Silver 0
Silicon 4
Boron 1
Sodium 8
Potassium 5
Magnesium 10
Calcium 2632
Phosphorus 944
Zinc 1034
Molybdenum 0
Fuel A
Water Glycol N
Viscosity @100c 14.3
Soot 0.6
Oxidation 15.00
Nitration 10.00
Comments: "Wear and contamination levels appear normal. No corrective action indicated by tests performed. Continue normal PM and sample interval."
My comments: I'm wondering about the Iron and Copper levels. TBN is very high too. Is the 100c visc the result of soot thickening? No makeup oil was added/needed during the test interval. Oil consumption has been zero since 20k miles. Fuel used was almost exclusively BP #2 diesel with 4oz. Stanadyne Performance Formula per tankful. This car delivers exceptional mileage even for a TDI. I normally get 55 miles per gallon, but have achieved 60 with very conservative driving habits.
I welcome any comments from the gallery at large.
Thanks