2003 Saab 9-5 Aero, Mobil 1 5W-40 TDT, 5700 miles

[greenjp]

The car had 127k when the oil was drained, after a 5,700 mile run. Mobil 1 5W-40 Turbo Diesel Truck and a M1 filter (good package deal at Advance Auto Parts). The car has a 2.3l turbo with 250 hp and a 5 speed manual. Runs great with no driveability issues, power is excellent and mileage is in the 27-28 mpg range in mixed driving. There was a period of about 500 miles late in the OCI where the car ran cool due to a faulty thermostat. Analysis by Terry Dyson's lab, MRT (?)

Aluminum 1
Chromium 1
Iron 13
Copper 11
Lead 2
Tin 0
Molybdenum 10
Nickel 0
Manganese
Silver 0
Titanium 0
Potassium 0
Boron 33
Silicon 12
Sodium 5
Calcium 1283
Magnesium 445
Phosphorus 1100
Zinc 1119
Barium 2
Antimony 0
Vanadium 0

Viscosity @ 210 - 11.4
Viscosity @ 40 - 68.4
Flashpoint - 250
Fuel % - 1.9
Antifreeze - no
Water % -
Insolubles % -
TBN - 2.9
TAN - 4.05
Oxid - 41
Nit - 15
KF - 662
Soot - 0
viscosity index - 163

Prior UOAs show a trend of good, low wear metals despite a good bit of degradation of the oil. Robust 5W-40s seem to be the best bet for these engines.

Previous UOAs at 14k, 45k, 70k, and 85k.

jeff

 

[addyguy]

Wow - the fuel really trashed that oil! Wear numbers are good, though. Might want to try and do a bit more highway driving to boil contaminents out of the oil.

 

[jstutz]

Originally Posted By: ARCOgraphite
Cu might be lower using a non-diesel oil.


why? do diesel oils cause high copper levels?

 

[FZ1]

Looks consistent. Good oci with that fuel. I like the M1 filter.