Loooong Oil Change intervals
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Cross-Country
Joined: Jan 2019
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Loooong Oil Change intervals
Hi all, Looking for a new to us 2015 F350 6.7 and found one we liked. Thing is that the owner followed the Oil Life Monitor and since he drove all highway and very seldom towed his 35' bumper pull it prompted him to change roughly only every 18,000km. Its got 92,000km (1200 hours and 105 idle hours)
Should we walk away or would this be considered acceptable to Fords warranty department.
I am old school and likely waste a ton of money on extra oil changes on our Ram Cummins and other vehicles but I know the newer oils and filters are extending services beyond what old-timers are comfortable with.
Just looking for some thoughts or experiences out there..
Cheers
Should we walk away or would this be considered acceptable to Fords warranty department.
I am old school and likely waste a ton of money on extra oil changes on our Ram Cummins and other vehicles but I know the newer oils and filters are extending services beyond what old-timers are comfortable with.
Just looking for some thoughts or experiences out there..
Cheers
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Cross-Country
Joined: Jan 2019
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Comforting to hear that, one vote for buy the truck..
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Cross-Country
Joined: Jan 2019
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I appreciate your input but please clarify,
It's my understanding that the OLM is programmed to calculate Speed (constant highway vs stop and go city), engine load, idle time, regen frequency etc and come up with a change time.
Some have said its pre-programmed to come on at 7500miles. (if this is true its nothing more than a reminder)
What's your take on this?
Cheers
It's my understanding that the OLM is programmed to calculate Speed (constant highway vs stop and go city), engine load, idle time, regen frequency etc and come up with a change time.
Some have said its pre-programmed to come on at 7500miles. (if this is true its nothing more than a reminder)
What's your take on this?
Cheers
Lead Driver
Joined: Nov 2005
Posts: 5,225
Likes: 4,239
From: Kaysville Utah
My 2011 and 2015 trucks both come on around 7500 miles. My 2017 is going much longer, More in the 10,000 mile range.
Back in the summer of 2010, The 6.7L was new and there was a Ford Engineer on one of the website discussing the engine. He said their original test showed the oil changes were safe out beyond 10,000 miles.( sorry don't remember the exact mileage)
But siding on the side of caution, They set the OLM for distances in the 7500 range. Most owners at the time were used to 5,000 mile oil changes ( especially coming from the 6.0L engines) So going 7500 challenged our beliefs of when oil should be changed.
The fact that Ford has extended the OLM is just a sign that they are more comfortable with the extended mileage. They do warranty the engine for 100,000 miles. Go look at the oil change intervals on the new Ram trucks. All the manufactures are pushing the intervals.
I ran 150,000 miles on my 2011 truck using the OLM to schedule oil changes and it's last Oil analyst was still showing little wear and good oil reports with 7500 mile intervals. and I towed a lot with that truck.
Gone are the days that I will do 3,000 or 5,000 mile oil changes
Back in the summer of 2010, The 6.7L was new and there was a Ford Engineer on one of the website discussing the engine. He said their original test showed the oil changes were safe out beyond 10,000 miles.( sorry don't remember the exact mileage)
But siding on the side of caution, They set the OLM for distances in the 7500 range. Most owners at the time were used to 5,000 mile oil changes ( especially coming from the 6.0L engines) So going 7500 challenged our beliefs of when oil should be changed.
The fact that Ford has extended the OLM is just a sign that they are more comfortable with the extended mileage. They do warranty the engine for 100,000 miles. Go look at the oil change intervals on the new Ram trucks. All the manufactures are pushing the intervals.
I ran 150,000 miles on my 2011 truck using the OLM to schedule oil changes and it's last Oil analyst was still showing little wear and good oil reports with 7500 mile intervals. and I towed a lot with that truck.
Gone are the days that I will do 3,000 or 5,000 mile oil changes
Thread Starter
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Cross-Country
Joined: Jan 2019
Posts: 79
Likes: 0
My 2011 and 2015 trucks both come on around 7500 miles. My 2017 is going much longer, More in the 10,000 mile range.
Back in the summer of 2010, The 6.7L was new and there was a Ford Engineer on one of the website discussing the engine. He said their original test showed the oil changes were safe out beyond 10,000 miles.( sorry don't remember the exact mileage)
But siding on the side of caution, They set the OLM for distances in the 7500 range. Most owners at the time were used to 5,000 mile oil changes ( especially coming from the 6.0L engines) So going 7500 challenged our beliefs of when oil should be changed.
The fact that Ford has extended the OLM is just a sign that they are more comfortable with the extended mileage. They do warranty the engine for 100,000 miles. Go look at the oil change intervals on the new Ram trucks. All the manufactures are pushing the intervals.
I ran 150,000 miles on my 2011 truck using the OLM to schedule oil changes and it's last Oil analyst was still showing little wear and good oil reports with 7500 mile intervals. and I towed a lot with that truck.
Gone are the days that I will do 3,000 or 5,000 mile oil changes
Back in the summer of 2010, The 6.7L was new and there was a Ford Engineer on one of the website discussing the engine. He said their original test showed the oil changes were safe out beyond 10,000 miles.( sorry don't remember the exact mileage)
But siding on the side of caution, They set the OLM for distances in the 7500 range. Most owners at the time were used to 5,000 mile oil changes ( especially coming from the 6.0L engines) So going 7500 challenged our beliefs of when oil should be changed.
The fact that Ford has extended the OLM is just a sign that they are more comfortable with the extended mileage. They do warranty the engine for 100,000 miles. Go look at the oil change intervals on the new Ram trucks. All the manufactures are pushing the intervals.
I ran 150,000 miles on my 2011 truck using the OLM to schedule oil changes and it's last Oil analyst was still showing little wear and good oil reports with 7500 mile intervals. and I towed a lot with that truck.
Gone are the days that I will do 3,000 or 5,000 mile oil changes
I believe it totally depends of how the engine is worked and environmental conditions but also not 100% comfortable relying in things like the OLM.
Just scared the bejesus outta me to hear the owner say 4 oil changes in 90,000 km (ready for the 5th). I would have been one 12 going to 13 lol..
Going to check with the dealer tomorrow and see what their thoughts are as well.
Thanks for the feedback.
Cheers
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More Turbo
Joined: Dec 2011
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The manual says to expect the OLM message like this:
7500-10000(12000-16000)Normal commuting with highway driving
No, or moderate, load or towing
Flat to moderately hilly roads
No extended idling.
Since the original owner apparently drove the truck more conservatively than most, that explains the long oil change interval.
7500-10000(12000-16000)Normal commuting with highway driving
No, or moderate, load or towing
Flat to moderately hilly roads
No extended idling.
Since the original owner apparently drove the truck more conservatively than most, that explains the long oil change interval.
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Thread Starter
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Cross-Country
Joined: Jan 2019
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The manual says to expect the OLM message like this:
7500-10000(12000-16000)Normal commuting with highway driving
No, or moderate, load or towing
Flat to moderately hilly roads
No extended idling.
Since the original owner apparently drove the truck more conservatively than most, that explains the long oil change interval.
7500-10000(12000-16000)Normal commuting with highway driving
No, or moderate, load or towing
Flat to moderately hilly roads
No extended idling.
Since the original owner apparently drove the truck more conservatively than most, that explains the long oil change interval.
I'm getting closer to pulling the trigger on this but still have to talk to his service department for sure.
I appreciate the comments and experiences.
Cheers
Thread Starter
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Cross-Country
Joined: Jan 2019
Posts: 79
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Seems everywhere I look on the forums 7500miles (12,000km) is the norm with exceptions on both the north and south sides of those numbers. To each their own when it comes to maintenance intervals for sure..
I was distraught when the owner said 4 changes in 92,000km but low and behold he is human. I asked him for service records and he supplied them with proof of oil changes done almost to the km at 12,000 each time...and he said hmmm..must have forgotten a few...
Jeesh, he could very well have lost a few potential buyers by scaring them off with his first guess. We almost walked without looking further into it but its in great shape so we pursued and I believe we may have been rewarded..
Thanks to all for input. I believe this thread may have run its worth.
Thanks again all!!
Hope to fix up a signature here soon with a 2015 F350 KR in it and one less Ram 3500..
Cheers
Posting Guru
Joined: Oct 2013
Posts: 1,039
Likes: 2
From: NC
To each their own when it comes to maintenance intervals for sure..
I was distraught when the owner said 4 changes in 92,000km but low and behold he is human. I asked him for service records and he supplied them with proof of oil changes done almost to the km at 12,000 each time...and he said hmmm..must have forgotten a few...
I was distraught when the owner said 4 changes in 92,000km but low and behold he is human. I asked him for service records and he supplied them with proof of oil changes done almost to the km at 12,000 each time...and he said hmmm..must have forgotten a few...
6.7 Weight Loss
Joined: Jun 2017
Posts: 1,141
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From: Woodbury CT
I also am "old school" and following the OLM makes me a bit nervous. But I have been sending a sample of oil to Blackstone for analysis after every oil change and it always comes back with "you can safely go <over 9,000> miles". My "old school" mentality is that proper oil change intervals is the single most important thing you can do to extend the life of your engine. That being said, I know dozens of people that never change their oil and their vehicles seem to continue to run. I would also look at other maintenance as well, as Ty mentioned, fuel filters, air filter, coolant. I would concern me a bit that if he "may have forgotten a few" oil changes what else has he "forgotten"? Ultimately, you need to look at the condition of the truck, you can generally tell if someone takes care of their vehicles or is someone that just drives them until they get tired of the thing and is sorta aloof about vehicle maintenance.
Cargo Master
Joined: Oct 2015
Posts: 2,745
Likes: 72
From: West Virginia
I am seeing a lot of confusion surrounding the oil life monitor in this thread.
The oil life monitor, which is what the 6.7L diesel trucks come equipped with, does track several parameters to determine when the oil should be changed. If these parameters fail to indicate an oil change is required, the system defaults to a 12 month cycle. So it is possible to find a truck with very low miles that only gets the oil changed once a year.
The oil life minder, which is what comes on the 6.2L gas truck is simply a mileage count down tool. It can be set to different values to represent 100% oil life remaining - 7500 miles is standard - whereupon it commences to counting down the miles to zero, and then indicates an oil change is required.
I drive an average of 5500 miles a month and my OLM usually indicates an oil change is required around 10,000 miles, so the truck you are looking at is in line with that. Idle hours should not be too much more than 10% of the engine hours, so you are good there, as well.
I'd be more concerned about the fuel filters and water separator. You might want to crawl under the truck with a large jar and drain the separator to check for water.
The oil life monitor, which is what the 6.7L diesel trucks come equipped with, does track several parameters to determine when the oil should be changed. If these parameters fail to indicate an oil change is required, the system defaults to a 12 month cycle. So it is possible to find a truck with very low miles that only gets the oil changed once a year.
The oil life minder, which is what comes on the 6.2L gas truck is simply a mileage count down tool. It can be set to different values to represent 100% oil life remaining - 7500 miles is standard - whereupon it commences to counting down the miles to zero, and then indicates an oil change is required.
I drive an average of 5500 miles a month and my OLM usually indicates an oil change is required around 10,000 miles, so the truck you are looking at is in line with that. Idle hours should not be too much more than 10% of the engine hours, so you are good there, as well.
I'd be more concerned about the fuel filters and water separator. You might want to crawl under the truck with a large jar and drain the separator to check for water.
