High oil usage - Ford Powerstroke Diesel Forum

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post #1 of 18 Old 11-17-2007, 04:19 PM Thread Starter
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High oil usage

I have a 99 7.3 turbo powerstroke with only 135,000 miles on it and it has used 2 gallons of oil in less than 500 miles! No major leaks and it has been well taken care of. Any ideas?
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post #2 of 18 Old 11-17-2007, 04:28 PM
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Does it smoke very bad?

99 F350 4x4 dually
7.3 w/K&N af
4" exh into 6" Aussies stacks
4"lift &35" tires
CC mod HP crossover line
Beans stage II 120hp injectors
D66 turbo
ITP regulated return
reburn on TS= 25,high idle,60,100,120,140hp
updated ecm (2000 model)
Dyno#'s 360hp and 965 ft lbs trq
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post #3 of 18 Old 11-17-2007, 04:47 PM
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Injector o-rings
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post #4 of 18 Old 11-17-2007, 04:50 PM
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might wanna check and see if your coolant level is rising. see if its smoking. might be time for a oil report from blackstone and also a ring job.

CB Radio- General Lee
7.3l 99 f-250 SD
4 INCH TURBO BACK TO 6 INCH MITER CUT STACKS CURIOSTY OF GRAND ROCK AND COWBOY DIESEL PERFORMANCE.
TS 6 POSTION CHIP. stock,high idle,50,75,100,140hp.
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post #5 of 18 Old 11-19-2007, 03:19 AM
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That's a lot of oil!!! Don't drive it, if the coolant looks good, send a overnight sample to Blackstone Labs, sure sounds like Injector O rings to me.

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post #6 of 18 Old 11-19-2007, 06:19 AM
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Injector O-rings. I have 3 International DT466 Flat Bed tow trucks that I work on at my work with the same style injectors that we have in our 7.3's. All 3 of the trucks I have done injector o-rings on because of fuel in the oil and oil in the fuel. The oil on the trucks were constantly low but no leaks.... which led me to the injector o-rings, which were shot and leaking. Replaced the o-rings and all my problems went away! (for now) lol

Early 99 F-350
4" lift on 33's
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post #7 of 18 Old 11-19-2007, 07:51 AM
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Will the injector o- rings make it lose power and miss alot when you crank it up.


Dodge is for people to lazy put a Cummins in a real truck

2001 F250 7.3L 4x4 = 4" Lift/ 35"Pro Comp Tires/ 16x10 Pro Comp Wheels/ Air Raid Intake/ Turbo back 4" dual stainless exhaust/ Map Fooler/ ZOODAD Mod/ SCT Xcal2/ Quadzilla Commander.
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post #8 of 18 Old 11-19-2007, 08:09 AM
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well it may casue it to run like sh*t, in my experience with the tow trucks, the drivers complain that the truck runs like a$$ and the oil level is constsntly down, or up but not where it should be.

Early 99 F-350
4" lift on 33's
Tymar Intake, Isspro Gauges, Modded IDM, HPX, Boost Fooler, 4" Exhaust
-BTS Tranny
-76mm Sledgehammer
-Swamps Tuning
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-ARP's, Chromoly's, 910's
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post #9 of 18 Old 11-21-2007, 04:58 AM
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Quote:
Originally Posted by Mikesf250 View Post
Will the injector o- rings make it lose power and miss alot when you crank it up.

You Betcha!!!

NCH
Proud Father of USAF Airman


2000 F350 DRW,CC,LB, 4X4, Western Hauler Pkg.
Ford AIS/ BTM, FTVB
My CCV MOD, Coolant filter
06 Grill, 05 lights,6.0 trans cooler
Cyro/Hawks, JVC Touchscreen HU, JL C5's, Infinity 800watt amp,
DP tunes, 60 tow/80 e/120 race, on a SCT2 tuner
P3 controller, Brite Box Turbo Lifesaver
KMC Wheels x 4

http://s132.photobucket.com/user/NCH...=recent&page=1

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post #10 of 18 Old 11-21-2007, 06:21 AM
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Quote:
Originally Posted by Mikesf250 View Post
Will the injector o- rings make it lose power and miss alot when you crank it up.
yes sir.....they run terrible cold and usually not quite right warm either when the o rings go......usually are hard to start cold too.....
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