7.3 using oil
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Cross-Country
Joined: Mar 2020
Posts: 87
Likes: 40
7.3 using oil
5800kms. Used over a liter . Been towing 12 to 20k daily for the past 4000km. Had first oil change at 4500km.Talked to head mechanic at my dealer. I will be dropping it off when my 2nd truck arrives in about 2 weeks. Another 7.3. Hoping it stops using oil. My 6.2 used about half a liter every 5000km since it was new. Now has 300 000km . Any thoughts?
Tuned
Joined: Aug 2020
Posts: 314
Likes: 90
For what's its worth, my 7.3L has over 33,000km on it. I'm a little over 10,000km since last oil change, and oil is still at the full mark.
I can't recall how much oil consumption I had in the early stages since I did the first few oil changes fairly close together.
I can't recall how much oil consumption I had in the early stages since I did the first few oil changes fairly close together.
Cargo Master
Joined: Jan 2004
Posts: 2,429
Likes: 701
From: Minnesota
Could be something about your break-in strategy? Not blaming but maybe it is something to think about? I've never had a Ford truck that used oil. Maybe a strategy change for the new truck? Just wondering . . . . .
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Cross-Country
Joined: Mar 2020
Posts: 87
Likes: 40
My break in was this. No trailer pulling till about 1400km. Till then I drove fairly regular with the exception of varying revs. No highway droning in 10th . Shifted manually quite a lot. From 1400 to 2000kms pulled 6000 lbs . From 2000km till now truck has pulled 12 to 20 000 lbs always. Never empty.
Cargo Master
Joined: Jul 2021
Posts: 2,970
Likes: 2,407
From: Ridgway, CO
Mine has not used any and I am coming up on 30k miles. First change at 2500, then 5000, then 10,000, 15,000, 20,000 and today or tomorrow at 29k. I checked before leaving on a 5500 mile road trip, didn't use any. Almost 10k on this change and it is still full.
From new it hit the highway for the 1300 mile trip home. Never did any special break in, just drove it. It did an 800 mile heavy haul after the 2500 mile change, never used any oil. I switched to Mobil 1 Truck and SUV formula at 2500 miles, used the same since.
My 6.2 never used oil either and it was run hard and put away wet more often than not. Even at 200k miles it doesn't use any oil.
I am not sure they will do anything for you. That is about a quart per 3500 miles in church of england which I do not think qualifies as "excessive" for a warranty claim. Most of the time it has to be going through at least 3 times that much to get any action. Hauling heavy like that regularly could be the cause but disappointing for sure on a new truck supposedly built for it.
The "why" might just be luck of the draw. I have not seen reports of excessive consumption on the 7.3's
From new it hit the highway for the 1300 mile trip home. Never did any special break in, just drove it. It did an 800 mile heavy haul after the 2500 mile change, never used any oil. I switched to Mobil 1 Truck and SUV formula at 2500 miles, used the same since.
My 6.2 never used oil either and it was run hard and put away wet more often than not. Even at 200k miles it doesn't use any oil.
I am not sure they will do anything for you. That is about a quart per 3500 miles in church of england which I do not think qualifies as "excessive" for a warranty claim. Most of the time it has to be going through at least 3 times that much to get any action. Hauling heavy like that regularly could be the cause but disappointing for sure on a new truck supposedly built for it.
The "why" might just be luck of the draw. I have not seen reports of excessive consumption on the 7.3's
Lead Driver
Joined: Feb 2005
Posts: 7,963
Likes: 2,662
From: The Great State of Texas
The 5.0 V8's with DI trucks had/have a problem with consuming oil but it's fairly widespread and well known.
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Lead Driver
Joined: Dec 2020
Posts: 8,640
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I wonder if the daily towing of 12k-20k plays into it. Any other 7.3l owners with a similar tow routine noticing any oil use?
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Fleet Mechanic
Joined: Jul 2008
Posts: 1,937
Likes: 1,221
From: Southern Crescent
Refresh my memory....
It was either the 7,3 gasser or the 6.7 diesel that had issues with the front crank seal. Mechanics would replace the seal and it still leaked, then they figured out the front covers were slightly off, not holding the seal precisely where it should be, so then they were replacing seals and covers.
But I don't remember which engine...
It was either the 7,3 gasser or the 6.7 diesel that had issues with the front crank seal. Mechanics would replace the seal and it still leaked, then they figured out the front covers were slightly off, not holding the seal precisely where it should be, so then they were replacing seals and covers.
But I don't remember which engine...
Fleet Mechanic
Joined: Nov 2019
Posts: 1,250
Likes: 192
From: Livingston Tx
Refresh my memory....
It was either the 7,3 gasser or the 6.7 diesel that had issues with the front crank seal. Mechanics would replace the seal and it still leaked, then they figured out the front covers were slightly off, not holding the seal precisely where it should be, so then they were replacing seals and covers.
But I don't remember which engine...
It was either the 7,3 gasser or the 6.7 diesel that had issues with the front crank seal. Mechanics would replace the seal and it still leaked, then they figured out the front covers were slightly off, not holding the seal precisely where it should be, so then they were replacing seals and covers.
But I don't remember which engine...
Cargo Master
Joined: Jan 2004
Posts: 2,429
Likes: 701
From: Minnesota
My break in was this. No trailer pulling till about 1400km. Till then I drove fairly regular with the exception of varying revs. No highway droning in 10th . Shifted manually quite a lot. From 1400 to 2000kms pulled 6000 lbs . From 2000km till now truck has pulled 12 to 20 000 lbs always. Never empty.
Cargo Master
Joined: Jan 2004
Posts: 2,429
Likes: 701
From: Minnesota
We just got back from pulling our 11.5K fifth wheel on a 5,000 mile trip; including numerous mountain passes. Oil level didn't budge.
Cargo Master
Joined: Jun 2011
Posts: 2,272
Likes: 208
From: Cincy area
Just did my first oil change in my 24 7.3 at 1300. Didn’t find it to be all that messy. The oil was a quart lite as I dump the used oil into the jugs that I use to fill it and there was only seven. I put 8.5 back in.
my 6.2 in my e350 van shoots oil clear to the drivers side tire lol.
my 6.2 in my e350 van shoots oil clear to the drivers side tire lol.
Lead Driver
Joined: Feb 2005
Posts: 7,963
Likes: 2,662
From: The Great State of Texas
Just did my first oil change in my 24 7.3 at 1300. Didn’t find it to be all that messy. The oil was a quart lite as I dump the used oil into the jugs that I use to fill it and there was only seven. I put 8.5 back in.
my 6.2 in my e350 van shoots oil clear to the drivers side tire lol.
my 6.2 in my e350 van shoots oil clear to the drivers side tire lol.