Hello Folks: Flawless 1999 Buick Regal GS, 3.8 liter supercharged V6, 108K miles on unit, 2400 miles on Pentospeed VS 0W-30 (an A3/B4 Euro oil). I did an early oil change (2,400 miles) because of possible LIM leak that can be a problem for this generation of this vehicle. Aside from this concern, the car runs great and I had no other questions regarding its health. Car is mostly short tripped but has a 350 mile round trip every two weeks or so. On these trips it gets an amazing 28-29 MPG consistently - and at 78 MPH highway speeds (long trip, cruise control). I regularly use Pentospeed VS in this vehicle, 5000 mile OCIs the norm. Bosch "Filtech" oils filters and Napa Gold air filter were used. This was my Dad's car until he passed away on August 10, 2012, age 88. He was a major car guy and always took very good care of all his cars. I'm really happy to have it. The car is in absolutely perfect condition. Whenever I drive it it makes me think of him. My plan is to put 200,000 miles on it, then donate to charity. From the looks of the oil analysis, it should still be running well! Look at that flashpoint and TBN! Comments welcome. Scott
Blackstone comments, 26 July 2013: There was no coolant present in this sample, so it looks like your lower intake manifold is in good shape. Or, it's not letting any coolant into the oil from what we see here. Metals look very good in this sample, with everything reading well below average after this run. Averages are based on about 5,000 miles, so your shorter run is part of the reason metals are lower, but we can't rule out a nicely wearing engine either. No fuel, moisture, or excessive silicon (dirt) was found and the TBN was fine at 7.9 since 1.0 or less is low. Nice!
Oil Pentospeed VS 0W-30 Universal Averages Miles in Use 2,400 Miles 108,000 Sample Taken 18 July 2013 Aluminum 1 3 Chromium 0 1 Iron 6 17 Copper 8 23 Lead 2 9 Tin 0 1 Moly 2 72 Nickel 1 0 Manganese 0 1 Silver 0 0 Titanium 0 0 Potassium 1 7 Boron 20 56 Silicon 8 13 Sodium 34 21 Calcium 1957 2226 Magnesium 518 165 Phosphorus 842 743 Zinc 996 863 Barium 0 0 SUS Visc @ 210*F 63.6 57-67 cST Visc @ 100*C 11.23 9.4-12.4 Flashpoint (*F) 425 >385 Fuel (%) <0.5 <2.0 Antifreeze (%) 0 0 Water (%) 0 <0.1 Insolubles (%) 0.1 <0.6 TBN 7.9 >1.0