Royal Purple 15W40 was installed in my 1995 PSD on 3/1/04 and I took a sample at 3,200 miles on the oil and changed the FF and bypass filter. I then added 2 quarts of oil (FF holds 2 quarts) and 16 ounces of SF SX-UP. (16 quart capacity) I then ran this oil for 3,000 more miles and did the latest sample and changed, so a total of 6.2K miles on the oil plus 18 months. Motorcraft Full Flow, Paper Air Cleaner, Turbo, and chipped.
[ September 10, 2005, 10:45 AM: Message edited by: 59 Vetteman ]
code:
9/7/05 2/25/05
Copper 8 6
Iron 16 13
Cr 0 0
Nickel 0 0
Silver 0 0
Lead 1 1
Tin 2 0
Alum 4 4
Silicon 6 4
Sodium 1 2
Potassium 2 5
Moly 143 139
Boron 12 4
Barium 1 0
Calcium 3523 3626
Mg 17 17
Phos 1205 1318
Antimony 71 Not tested
Zinc 1431 1494
Soot 18 Not tested
ZDDP(depletion) 0.03 0.05
Viscosity 13.1 (40W) 12.8 (40W)
Ferrous Debris 14 11
Fuel/Water/Anti-Freeze--Zero both times
[ September 10, 2005, 10:45 AM: Message edited by: 59 Vetteman ]