First oil change

[Dsl_Dog_Treat]

, we do it because we can!

On my 90, the crate motor that the P.O. put in has a sticker on the valve cover that says 10.5 quarts. That is with the stock filter.
She takes it all in too.

I too have also heard the better filtration as well due to the tighter tolerances of the turbo.

Correct me if'n I wrong but I can't find the number for filter micron differences.

 

[Diesel JD]

you might be able to find it here www.fleetfilter.com but I don't know if they give these ratings for oil filters or only fuel filters. You'll want to add the 9+ quarts in teh sump and 1-1.75 quarts in teh FL1995 and then check the dipstick with teh engine hot but on even ground when teh motor has had at least a 10-15 minute drainback time. Overfilling is not good, so don't add any oil until you are at or very close to teh add line, in fact with that big filter wait till its below the add line, that is 2 quarts low on a stock system but only 1 low on a PSD filter. Then add just one quart. Check the oil often. A healthy 6.9 can use as much as a quart per 400-500 miles,a dn a tired one can use it much much faster!
J.D.

 

[sle2115]

The powerstroke filter in Wix:
Part Number: 51734
UPC Number: 765809517349
Principal Application: Ford/IHC Trucks w/7.3L Turbo Diesel (94-03)
All Applications
Style: Spin-On Lube Filter
Service: Lube
Type: Full Flow
Media: Paper
Height: 8.093
Outer Diameter Top: 4.282
Outer Diameter Bottom: Closed
Thread Size: 1 1/2-16
By-Pass Valve Setting-PSI: None
Beta Ratio: 2/20=10/30
Burst Pressure-PSI: 385
Max Flow Rate: 28-30 GPM
Nominal Micro Rating: 19

Gasket Diameters
Number O.D. I.D. Thk.
Attached 3.967 3.587 0.340

The standard filter in Wix:
Part Number: 51742
UPC Number: 765809517424
Principal Application: Ford, IHC Trks w/6.9 Diesel Engine (83-93), 7.3L Diesel Engine (87-95)
All Applications
Style: Spin-On Lube Filter
Service: Lube
Type: Full Flow
Media: Paper
Height: 5.968
Outer Diameter Top: 4.282
Outer Diameter Bottom: Closed
Thread Size: 1 1/2-16
By-Pass Valve Setting-PSI: None
Beta Ratio: 2/20=24/44
Burst Pressure-PSI: 390
Max Flow Rate: 28-30 GPM
Nominal Micro Rating: 25

Gasket Diameters
Number O.D. I.D. Thk.
Attached 3.967 3.587 0.340




Sure seems like there is more than 2 inches difference, but I replaced a Puralator standard filter with a Wix 51734, so maybe there was.

Courtesy of www.wixfilters.com

 

[icanfixall]

The reason Ford went to this filter on the psd motors is because of the turbo needs. Yes, it does have a better finer filter media and holds more of it for better flow and filteration. Remember that the powerstroke motor uses the oil and the pump for the injection pressure. The psd heads have an oil rail that holds about 1 quart per head. And gee, sometimes the o-rings at the back of the heads on this same oil gallery let go and man-o-man do you have an oil leak. I think the pressure in this area starts low at 20,000 lbs and can go up to 34,000 lbs on a stock motor. I'm sure the psd guys boost this pressure way up there too. Just prefill the psd filter (1995) and run it. The worst thing it will do is work better for you.