So, What's the best oil for me? - Ford Powerstroke Diesel Forum
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post #1 of 16 Old 06-20-2009, 02:46 PM Thread Starter
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So, What's the best oil for me?

What's the best oil for my soon to be mild to moderately modded 2001 F-250
7.3L? My truck has 200,000 miles and I've heard that going with a synthetic could cause leakage around the seals (due to the miles and age of the engine)?? What would be a good oil for a high mileage yet somewhat performance motor???

Thanks
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post #2 of 16 Old 06-20-2009, 03:01 PM
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I run Delo 400 15/40 in my 2000 Excursion 7.3 and in my big rig. I use either Wix or Baldwin oil filters in both. Run Lucas oil additive and fuel additive also in both. I do an oil anaylsis every other oil change and have no breakdown of the oil. Change oil about every 7000 miles on Excursion about 12000 on the rig. Have been running Delo for about 30 years. This is what I use, hope this helps you out. Have 1.1 million miles on the rig. Good luck
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post #3 of 16 Old 06-20-2009, 03:17 PM
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I use nothing but motorcraft oil and filters

03 F-250 Lariat Crew Cab SB 6.0L Auto 4x4
5" exhaust, AFE intake, Blue spring mod, EGR Delete, 58v FICM, Warren 175/75 injectors, Powermax Turbo,
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post #4 of 16 Old 06-21-2009, 03:07 PM
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I run Delo 400 15/40 and motorcraft filters. Nothing else
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post #5 of 16 Old 06-21-2009, 04:29 PM
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Anyone like Royal Purple?

I heard some good things about it, just not sure it is right for a 7.3L. I tried Amsoil and didn't like it, currently use Valvoline Premium Blue Engine Oil and have no complaints. Thinking about trying Valvoline Premium Blue Extreme Engine Oil full synthetic.

Bill

2003 F250 Superduty XLT:

7.3L Powerstroke
TS Performance 6 Position Flip Chip
Eighteen K Power Module
DFUSER MAP-Maximizer
Turbo Master Wastegate Controller
Borg Warner Compressor Wheel
FASS Fuel Pump
FASS Suction Tube
GDS FUEL PRESSURE SPRING
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post #6 of 16 Old 06-21-2009, 05:17 PM
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Bill

2003 F250 Superduty XLT:

7.3L Powerstroke
TS Performance 6 Position Flip Chip
Eighteen K Power Module
DFUSER MAP-Maximizer
Turbo Master Wastegate Controller
Borg Warner Compressor Wheel
FASS Fuel Pump
FASS Suction Tube
GDS FUEL PRESSURE SPRING
AIH Delete W/Boost Fitting
Sonnax Shift Kit
DIY Big Air Filter
4" Magnaflow Turbo Back SS Exhaust
AutoMeter Ultra-Lite Gauges
6" Suspension Lift
35" Tires

45 Auto
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post #7 of 16 Old 06-27-2009, 05:54 PM Thread Starter
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Anybody Else???

This is my first powerstroke and I have no idea what's in there now, nor do I know what has been used for the last 200K. I know that to most people oil is just oil but if all it's had for close to 200K is regular ole' oil, would it be a bad idea to go to a synthetic now???

Thanks

Last edited by E'sStrokr01; 06-27-2009 at 06:03 PM.
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post #8 of 16 Old 07-02-2009, 04:05 PM
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I have used Shell Rotella in all my diesels, especially in my old GM 6.2L, which it did wonders for with the smoke issue. You can pick it up at Walmart for about $11/gal I just go with motorcraft for my filters. Oh and Welcome to to the ORG



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post #9 of 16 Old 07-02-2009, 04:07 PM
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Quote:
Originally Posted by dalton1 View Post
I use nothing but motorcraft oil and filters

cant go wrong with motorcraft!

Quote:
Originally Posted by Ianstew
There is a difference in a government acting responsibly within their powers, and a government that just decides what their powers are and what responsibility means based on political whimsy.
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post #10 of 16 Old 07-02-2009, 04:10 PM
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in most warm weather situations, 15W40 is called for. I like the Shell and Motorcraft myself. My truck sees winter, and doesn't get run very hard, so I run Motorcraft 10W30 (CJ4) all year. Seems to start easier with lighter oil.
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