Got an unfavorable oil report back on a Ford 7.8L diesel we run in a silage truck. I've done three oil analysis on this engine, the first one was pretty bad but I fixed some stuff on the air intake and the second one came back quite a bit better. Now the third one is worse than the second even with nearly the same hours. I'm getting high copper, lead and aluminum. My silicon and insolubles are low and my viscosity seems to be what it should be so any suggestions on what I should look at? All three reports were through blackstone. Numbers to the left are most recent
Hours: 213, 214, 349
Al: 3,4,10
Chr: 3,2,9
Iron: 47,34,108
Cu: 261,113,487
Pb: 17,9,17
Tin: 1,0,4
Moly: 12,95,88
Ni: 2,1,4
Mn: 1,1,1
Silver: 0,0,0
Ti: 0,0,0
Pot: 0,2,10
Bor: 34,365,109
Silicon: 4,7,23
Sodium: 1,5,3
Ca: 1316,1576,3283
Mg: 771,436,102
Ph: 1051,1188,1226
Zn: 1300,1325,1386
Barium: 0,0,0
SUS Vis@210: 70.7,73.9,79.9
cST Vis@100: 13.14,13.97,15.5
Flashpoint: 435,435,450
Fuel%: Antifreeze%: 0
Water%: 0
Insolubles%: .3,.4,.5
Between the second and third oil changes, we began using Service Pro 15w-40 instead of Texaco Ursa Super Plus 15w-40.
Some of the additive levels are different but otherwise wear has mostly remained the same in our other engines. This engine probably only has about 1300-1400 hours on it as we replaced it with a new reman unit a few years back.
Hours: 213, 214, 349
Al: 3,4,10
Chr: 3,2,9
Iron: 47,34,108
Cu: 261,113,487
Pb: 17,9,17
Tin: 1,0,4
Moly: 12,95,88
Ni: 2,1,4
Mn: 1,1,1
Silver: 0,0,0
Ti: 0,0,0
Pot: 0,2,10
Bor: 34,365,109
Silicon: 4,7,23
Sodium: 1,5,3
Ca: 1316,1576,3283
Mg: 771,436,102
Ph: 1051,1188,1226
Zn: 1300,1325,1386
Barium: 0,0,0
SUS Vis@210: 70.7,73.9,79.9
cST Vis@100: 13.14,13.97,15.5
Flashpoint: 435,435,450
Fuel%: Antifreeze%: 0
Water%: 0
Insolubles%: .3,.4,.5
Between the second and third oil changes, we began using Service Pro 15w-40 instead of Texaco Ursa Super Plus 15w-40.
Some of the additive levels are different but otherwise wear has mostly remained the same in our other engines. This engine probably only has about 1300-1400 hours on it as we replaced it with a new reman unit a few years back.