6.0L Bible Oil Shear Study: 6.0L PSD vs 7.3L PSD
Miles on Engine  
4,905
6196
10,050
13,032
16,025
18,970
21,945
27,932
35,545
36,996
Mile on Oil  
4,905
1,291
3,850
2,983
2,989
2,945
2,975
3343
1,544
1451
Sample Date  
08-May-03
04-Jun-03
21-Sept-03
21-Nov-03
18-Jan-04
07-March-04
26-May-04
21-Oct-04
02-May-05
06-June-05
Oil Type  
Factory Oil
Motorcraft
Quaker State HDX
Motorcraft
Motorcraft
Delo 400
Mobil Delvac 1300
Delo 400
Mobil Delvac 1300
Mobil Delvac 1300
Weight  
10W-30?
15W-40
15W-40
15W-40
15W-40
15W-40
15W-40
15W-40
15W-40
15W-40
Oil Filter  
Motorcraft
Motorcraft
Motorcraft
Motorcraft
Motorcraft
Motorcraft
Motorcraft
Motorcraft
Motorcraft
Motorcraft
Filter Changed  
Yes
Yes
Yes
No
Yes
Yes
No
Yes
No
No
Elements in PPM UA            
 
 
 
 
Aluminum 3 2
N
2
2
2
2
2
1
2
2
Chromium 1 1
O
0
1
0
0
1
0
1
1
Iron 24 45
-
21
15
10
10
11
9
6
7
Copper 4 17
S
3
2
2
2
1
1
1
1
Lead 3 8
A
0
0
2
1
2
0
0
0
Tin 1 2
M
0
0
1
1
1
0
0
0
Molybdenum 11 1
P
1
1
1
1
29
32
122
206
Nickel 0 0
L
0
0
0
0
0
0
0
0
Manganese 0 2
E
0
0
0
0
0
0
0
0
Silver 0 1
-
0
0
0
0
0
0
0
0
Titanium 0 0
D
0
0
0
0
0
0
0
0
Potassium 5 44
O
7
5
0
0
1
3
0
0
Boron 35 3
N
272
328
221
61
38
18
80
111
Silicon 11 170
E
52
45
46
13
10
7
6
8
Sodium 3 10
-
3
2
2
3
1
2
1
2
Calcium 3072 2714
-
2878
3032
2811
3096
2587
3673
2838
2931
Magnesium 83 16
-
215
242
183
43
345
13
436
410
Phosphorus 1067 1011
-
1034
972
968
1160
1012
1186
1419
1190
Zinc 1213 1146
-
1091
1155
1028
1302
1275
1339
1581
1251
Barium 2 2
-
0
0
0
0
0
0
0
0
Properties Baseline            
 
 
 
 
SUS Viscosity @ 210°F 65-78
56.2 (69-82)
-
66.9 (69-78)
67.5 (65-75)
66.1 (65-75)
67.3 (69-82)
65.4 (68-78)
67.0 (69-82)
69.1 (68-78)
67.3 (68-78)
Flashpoint in °F >410-415
395 (>405)
-
380 (>415)
390 (>410)
395 (>410)
400 (>405)
405 (>415)
380 (>405)
385 (>415)
390 (>415)
% Fuel <2.0
1.0
-
0.5
2.0
1.5
0.5
1.0
2.5
3.0
2.5
% Anti-Freeze 0
0.0
-
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
% Water <0.1
0.0
-
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
% Insolubles <0.7
0.3
-
0.1
0.2
0.4
0.2
0.4
0.3
0.2
0.2
               
 
 
 
 
Comments Links  
08-May-03
04-Jun-03
21-Sept-03
21-Nov-03
18-Jan-04
07-March-04
             
 
15 qts
8 qts
Last Update: 1/20/2006
Oil Service Points Link
6.0L Lubrication System
Virgin oil samples done by Blackstone labs of Motorcraft Super Duty 15W-40 and Delo 400 14W-40. Both oils are CI-4 Rated.
Sample Date
5/10/04
5/10/04
11/16/04
Oil Type
Motorcraft
Delo 400
Delo 400
Weight
15W-40
15W-40
15W-40
CI-4
CI-4+
Elements in PPM
Aluminum
0
1
2
Chromium
0
0
0
Iron
1
2
2
Copper
0
0
0
Lead
0
1
3
Tin
0
0
0
Molybdenum
0
0
198
Nickel
0
0
0
Manganese
0
0
0
Silver
0
0
0
Titanium
0
0
0
Potassium
0
0
10
Boron
321
0
116
Silicon
5
5
8
Sodium
1
1
4
Calcium
2909
3476
3198
Magnesium
258
6
4
Phosphorus
1138
1190
1238
Zinc
1388
1329
1295
Barium
0
0
0
Properties Baseline
SUS Viscosity @ 210°F
65-75
80.7
<---
SUS Viscosity @ 210°F
69-82
--->
80.5
79.4
Flashpoint in °F
>410
420
<---
Flashpoint in °F
>405
--->
450
425
% Fuel
<2.0
-
-
% Anti-Freeze
0
-
-
% Water
<0.1
0.0
0.0
0.0
% Insolubles
<0.7
0.0
0.0
0.0
Blackstone Labs Report Links
Motorcraft
Delo 400
6.0L engine oil viscosity vs temperature chart.
Specs from the manufactures.
Oil 15W-40 CI-4 Flash Point F Viscosity Index cSt@40C cSt@100C SUS@210F Total Base Ash, %wt Phos, %wt Zinc, %wt
Motorcraft
449
135
8
0.9
Delo 400
446
134
116
15.6
80.3
11.3
1.35
0.138
0.151
Mobil Delvac
446
133
123
15.6
80.3
12
1.3
Other oil samples from the oildrop forum
Flashpoint
SUS VISCOSITY@210F
cSt Viscosity@100C
Zinc
Phos
 TBN
Mobil Delvac 1 Synthetic 5W-40 API CH-4/SJ
425F
78.6
15.2
1216ppm
1090ppm
Motorcraft 15W-40 Super Duty Diesel Motor Oil API CH-4/SJ
435F
78.2
15.2
1166ppm
1019ppm
14
Gulf Super Duty Plus 15W-40 Motor Oil API CI-4/SL
430F
80.9
15.7
1089ppm
956ppm
13.5
Rotella 15w-40 T Shell API SL/CI-4
60.5
10.36
1499ppm
1326ppm
10.36
Royal Purple 15W-40 API CH-4/SJ
76.9
14.75
1298ppm
1007ppm
10.31
Amsoil15w-40 API SL/CI-4
79.9
15.51
1323ppm
1253ppm
11.78
A handy dandy cSt to SUS calculator: http://neptune.spacebears.com/cars/stories/margins.html
Averages: The universal averages column is the average of all the samples we have analyzed for the particular equipment make and model. The unit/location averages column is your average wear for that particular type of equipment. They are both running averages and change with the number of samples we analyze.

Elements: Elements are quantified in the oil at part per million levels (PPM). This list shows the most common sources of the elements in a gasoline or diesel engine oil.

Aluminum: Pistons, bearings, cases (heads & blocks).
Chromium: Rings, a trace element in steel.
Iron: Cylinders, rotating shafts, the valve train, and any steel part sharing the oil.
Copper: Brass or bronze parts, copper bushings, bearings, oil coolers, also an additive in some gasoline engine oils.
Lead: Bearings.
Tin: Bearings, bronze parts, piston coatings.
Molybdenum: Anti-wear additive, some types of rings.
Nickel: Trace element in steel.
Manganese: Trace element, additive in gasoline.
Silver: Trace element.
Titanium: Trace element.
Potassium: Antifreeze inhibitor, additive in some oil types.
Boron: Detergent/dispersant additive, antifreeze inhibitors.
Silicon: Airborne dirt, sealers, gaskets, antifreeze inhibitors.
Sodium: Antifreeze inhibitors, additive in some gasoline engine oils.
Calcium: Detergent/dispersant additive.
Magnesium: Detergent/dispersant additive.
Phosphorus: Anti-wear additive.
Zinc: Anti-wear additive.
Barium: Detergent/dispersant additive.

Physical properties: Viscosity, flashpoint, % fuel and antifreeze,
% water and insolubles are all measured in gasoline and diesel engine oils. If fuel is present in an oil, the viscosity and flashpoint will often be lower than what was stated in the A Values. Insolubles are solid material that is centrifuged out of the oil. They are typically free carbon from the oxidation of the oil itself, along with blow-by past the rings.
Flash point is the temperature at which an oil gives off vapors that can be ignited with a flame held over the oil. The lower the flash point the greater tendency for the oil to suffer vaporization loss at high temperatures and to burn off on hot cylinder walls and pistons. The flash point can be an indicator of the quality of the base stock used. The higher the flash point the better. 400 F is the minimum to prevent possible high consumption. Flash point is in degrees F.
Viscosity Index is an empirical number indicating the rate of change in viscosity of an oil within a given temperature range. Higher numbers indicate a low change, lower numbers indicate a relatively large change. The higher the number the better. These numbers can only be compared within a viscosity range. It is not an indication of how well the oil resists thermal breakdown.
% sulfated ash is how much solid material is left when the oil burns. A high ash content will tend to form more sludge and deposits in the engine. Low ash content also seems to promote long valve life. Look for oils with a low ash content.
% zinc is the amount of zinc used as an extreme pressure, anti- wear additive. The zinc is only used when there is actual metal to metal contact in the engine. Hopefully the oil will do its job and this will rarely occur, but if it does, the zinc compounds react with the metal to prevent scuffing and wear. A level of .11% is enough to protect an automobile engine for the extended oil drain interval, under normal use. Those of you with high revving, air cooled motorcycles or turbo charged cars or bikes might want to look at the oils with the higher zinc content. More doesn't give you better protection, it gives you longer protection if the rate of metal to metal contact is abnormally high. High zinc content can lead to deposit formation and plug fouling.
Source for oil info:
Ed Hackett, More Then You Ever Wanted to Know About Motor Oil
Charles David Ledger; dieselmann
Blackstone labs
International's part number for the oil filter for the VT365 Diesel engine.
Oil Filter for the Ford 6.0L PSD
Updated: Friday, January 20, 2006

D. Pruyn

Return to F-350 Page

Return to Home Page

Fmtrvt's Oil Study link