My 2007 Ford Fusion turned 300K today.

Sure it keeps the engine clean but that doesn’t mean it’s not doing damage in the long run say he makes it to 315K likely it’ll start consuming before then.
Hold up, your posit here is that he's managed to get to 300,000 miles without consumption, but magically, in the next 15,000 miles, it's going to start consuming oil because his experience doesn't align with your theory? I'm sorry, but that's one of the biggest loads of bovine excrement I've ever read on this board.
 
If he has had good luck then that’s on him. Based on the issues I’ve seen across multiple engines it’s safe to say my argument is correct. I’ve seen it on more than he has listed.
You haven't made an argument, you've made a claim, devoid of evidence, that moderately extended OCI's are universally bad. He's been doing this for decades longer than you've been alive.
And I’m not sure I’m full on 100% about him having no issues but I’m not there so I don’t know for sure.
So you are questioning the veracity of his statements; questioning the nature of this man's character without any grounds upon which to do so, simply based on the fact that you have a feeling that extended OCI's are universally bad? You might want to re-think this approach.
Sure it keeps the engine clean but that doesn’t mean it’s not doing damage
OK, so please explain to the rest of us what an oil whose additive package is clearly not overwhelmed (hence the cleanliness) is somehow producing invisible damage?

With all due respect, I think you are operating well outside your wheelhouse here and have already made some rather inflammatory statements based on a position which you lack the education and resources to defend. I personally have a serious issue with you questioning this man's credibility, if that's not already obvious by the tone I've taken at this juncture.
 
You haven't made an argument, you've made a claim, devoid of evidence, that moderately extended OCI's are universally bad. He's been doing this for decades longer than you've been alive.

So you are questioning the veracity of his statements; questioning the nature of this man's character without any grounds upon which to do so, simply based on the fact that you have a feeling that extended OCI's are universally bad? You might want to re-think this approach.

OK, so please explain to the rest of us what an oil whose additive package is clearly not overwhelmed (hence the cleanliness) is somehow producing invisible damage?

With all due respect, I think you are operating well outside your wheelhouse here and have already made some rather inflammatory statements based on a position which you lack the education and resources to defend. I personally have a serious issue with you questioning this man's credibility, if that's not already obvious by the tone I've taken at this juncture.
Automechanic has, in a left-handed way, accused me of lying.
 
That’s crazy. Back then those intervals weren’t heard of. Mobil 1 can claim what they want but I don’t trust them. I’ll use them for 5,000 no problem but not going above that. I’ll be honest as a mechanic majority of the oil consumption issues I’ve seen have been on high mileage cars with extended intervals. Can’t completely prove it was the oil change interval that caused it but it seems to be a similarity in all the cars with the consumption issues and no engines from those brands were known oil users so it had to be something to do with it. Oil technology has improved but not that much for that long yet. I bet you’ve had consumption issues in at least a few of those. If not you are lucky. My Escape consumes oil cause it leaks it all out LOL. Leaking out of everywhere except the valve covers cause I replaced those. Just don’t feel like pulling the engine to do a timing estcover. Need to reseal the oil pan at some point. Either way I give you credit for bravery but you won’t catch me doing that. I’d trust the manufacturer before I would an oil company. I don’t trust manufacturers (I’m looking at Toyota in particular) or oil companies when it comes to intervals.

Same engine, same timing cover leak. You won’t like this suggestion, but Liqui-Moly Oil Saver stopped the leak completely for me. Can’t hurt…
 
I’m sorry to anyone who I may have made upset in anyway. I certainly didn’t mean to come across the way I did. It’s ok if we disagree. Hopefully everyone will accept my apology and realize where I was coming from and my point of view on the situation. I don’t want to argue with anyone so I’m not going to spark things more. Let me explain a bit more but not argue. I do disagree with at least Overkill and Tig1. And I’m sorry to both of you if you took what I said the wrong way. I think we definitely disagree on my experience as a mechanic but I still respect both of your opinions and your findings from long oil changes. And I wasn’t trying to blame the oil brand or anything they make great products it’s just we have a different opinion on how long they can safely be run. If they aren’t and haven’t caused any problems then that’s great. My opinion was formed from working at a few dealerships where that brands oil happens to be made by Mobil 1 and I’ve seen problems in cars having run it that long. Some of which were regularly serviced by a dealership so it leads to only that particular oil being run and then I see consumption or other problems and it may not be the oil that is the problem but there is not really a way to have a complete culprit of the problem and I feel instinct would automatically believe the oil interval would be the cause. And we do disagree on my experience too but I am having a hard time figuring out how to word that appropriately so I will just say we disagree on my experience. So to everyone and those two in particular please accept my apology and if you want to talk maybe message me on here and we can talk I just don’t want to argue. Thank you everyone. Anytime if you see we have a different opinion I don’t mind discussing it.
 
Automechanic has, in a left-handed way, accused me of lying.
I know he's wrong, but I see where he's coming from because I also worked in a garage doing oil changes and I saw lots of people doing 10k or less oil changes, with sludge sticking to the dipstick.
Blanket statements are the problem. I have a problem with bitog regulars telling everyone 10k is never a problem. It can be. Your 10k is probably equivalent to 3k for some people's usage.

I've seen people come in for an oil change after a couple years and 10k using conventional bulk Pennzoil, more than a qt low, lots of idle time... chunks stuck to the stick. But if you drive a steady speed on the highway for an hour a day at 70 degrees Fahrenheit, and you're running m1 or amsoil etc, the oil is probably still really good at 10k.

On to my question...did you have an injector fail or what caused you to replace them? My trucks injectors are a little bit noisy at 240k.
 
I think we definitely disagree on my experience as a mechanic but I still respect both of your opinions and your findings from long oil changes.
I think this is an unfortunate example of how experience does not always equate to expertise. As a technician, your experience is limited to installation of the referenced products and observation of any "failures," but the scope of your work does not present you with opportunities to understand the technical background behind those products and how/why the "failures" really occur. For those reasons, I don't think you have fully understood how or why oil consumption occurs, and therefore, does not make you qualified to make the statements you did.

However....you could have still presented your thoughts, but it in a different way.
 
Blanket statements are the problem. I have a problem with bitog regulars telling everyone 10k is never a problem. It can be.
Which BITOG regulars have said 10k is never a problem? Nearly every single one I’ve seen tells people they should start conservatively and use UOAs to ensure the oil is still in grade and no other contamination or concerning trends before lengthening intervals.
 
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The Fusion still runs great. The engine (2.3) uses about 8-10oz of oil with each 10k OCI. The head hasn't been removed, but I did change the VC gasket twice, along with a new starter 2 months ago and new injectors in November as well. The trans shifts perfect up and down, and I do change ATF every 30-40K. All lubricants have been M1 in both the engine and transmission. I use the MC FL 910S oil filter in the engine, and I also change the trans filter every other drain. My next goal for the car is 325K.
Now that you've crossed this milestone, this would be a good time to move over to their 0w30 and start putting some bolts on parts on this car and have a little bit of fun! Start with a t3 t4 turbo and a big exhaust. Now I'm just kidding but if you did it it would be a good idea
 
10K oil change interval 😳 you are certainly braver than I am. I’m surprised it’s lasted that long with that interval. But congratulations on 300K. Hoping to make it that far with my Escape though I’m bored of it and want a older Blazer lol. I’m at 204,600 something with my Escape currently.
Well if it's a 10,000 mile oil change interval and it doesn't have direct injection or forced induction or both and it's at least operated once a week on a highway drive that's pretty easy on oil.
 
My opinion was formed from working at a few dealerships where that brands oil happens to be made by Mobil 1 and I’ve seen problems in cars having run it that long. Some of which were regularly serviced by a dealership so it leads to only that particular oil being run
Being made by ExxonMobil doesn't make the product Mobil 1 though. Mobil makes TGMO for example. They also make several Mobil-branded lines of products that are not recommended for a 10K OCI. So, just being a Mobil product does not make it Mobil 1, does that make sense?
I know he's wrong, but I see where he's coming from because I also worked in a garage doing oil changes and I saw lots of people doing 10k or less oil changes, with sludge sticking to the dipstick.
Blanket statements are the problem. I have a problem with bitog regulars telling everyone 10k is never a problem. It can be. Your 10k is probably equivalent to 3k for some people's usage.

I've seen people come in for an oil change after a couple years and 10k using conventional bulk Pennzoil, more than a qt low, lots of idle time... chunks stuck to the stick.
I am certainly not suggesting people blindly run 10K intervals. What has been pointed out here is that:
- The OP has successfully run 10K intervals in his vehicles for over 40 years and clearly with his driving profile, regardless of the equipment, this has been successful. He's not lying, he's not hiding anything, his application with this lubricant clearly allows for 10K intervals without issue.

There's really nothing to disagree with there, the success is right in front of us. Somebody doesn't get to slag him just because it doesn't align with whatever philosophy they've decided to invest in. But that also should not be construed as a universal endorsement for this drain interval.

- Extended intervals are doable, with many pieces of equipment with the appropriate operating profile. @High Performance Lubricants has an absolutely monstrous amount of fleet data that supports this, as do @Doug Hillary and @dnewton3. Saying 3K or 5K max, universally, is just as silly as saying 20K max, universally. Somebody doesn't get to state or imply with impunity that people are fabricating simply because their knowledge of the subject is too limited to appreciate this sort of nuance.

There was opportunity for productive dialogue, but that was not the route taken, instead we got absolutist broad-brush statements like:

Automechanic said:
It’s great oil but it’s certainly no 10,000 mile oil. No oil is.

Which is presented as fact, despite the evidence to the contrary clearly staring him in the face 🤷‍♂️


Does that help make my position on the matter more clear?
 
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I think this is an unfortunate example of how experience does not always equate to expertise. As a technician, your experience is limited to installation of the referenced products and observation of any "failures," but the scope of your work does not present you with opportunities to understand the technical background behind those products and how/why the "failures" really occur. For those reasons, I don't think you have fully understood how or why oil consumption occurs, and therefore, does not make you qualified to make the statements you did.

However....you could have still presented your thoughts, but it in a different way.
Fantastic post! (y)
 
Being made by ExxonMobil doesn't make the product Mobil 1 though. Mobil makes TGMO for example. They also make several Mobil-branded lines of products that are not recommended for a 10K OCI. So, just being a Mobil product does not make it Mobil 1, does that make sense?

I am certainly not suggesting people blindly run 10K intervals. What has been pointed out here is that:
- The OP has successfully run 10K intervals in his vehicles for over 40 years and clearly with his driving profile, regardless of the equipment, this has been successful. He's not lying, he's not hiding anything, his application with this lubricant clearly allows for 10K intervals without issue.

There's really nothing to disagree with there, the success is right in front of us. Somebody doesn't get to slag him just because it doesn't align with whatever philosophy they've decided to invest in. But that also should not be construed as a universal endorsement for this drain interval.

- Extended intervals are doable, with many pieces of equipment with the appropriate operating profile. @High Performance Lubricants has an absolutely monstrous amount of fleet data that supports this, as do @Doug Hillary and @dnewton3. Saying 3K or 5K max, universally, is just as silly as saying 20K max, universally. Somebody doesn't get to state or imply with impunity that people are fabricating simply because their knowledge of the subject is too limited to appreciate this sort of nuance.

There was opportunity for productive dialogue, but that was not the route taken, instead we got absolutist broad-brush statements like:



Which is presented as fact, despite the evidence to the contrary clearly staring him in the face 🤷‍♂️


Does that help make my position on the matter more clear?
I 100% agree. I was just trying to remind that the 10k distance is only one metric to base an oil change interval on.
I prefer to go by my olm and use it down to about 20% which in wintertime like right now is less than 4k miles. In summer it's closer to 5k miles but it very depending on how many long trips I took.
 
Which BITOG regulars have said 10k is never a problem? Nearly every single one I’ve seen tells people they should start conservatively and use UOAs to ensure the oil is still in grade and no other contamination or concerning trends before lengthening intervals.
I've visited this forum on and off for over 15 years I think.... I've seen regulars in the past say it...maybe it hasn't been anyone recently. But it's certainly something I've read many times and even argued it in the past. Starting conservatively and doing uoa's is certainly a smarter recommendation.
 
I 100% agree. I was just trying to remind that the 10k distance is only one metric to base an oil change interval on.
I prefer to go by my olm and use it down to about 20% which in wintertime like right now is less than 4k miles. In summer it's closer to 5k miles but it very depending on how many long trips I took.
HEMI's are dirty running enough that I doubt I'd ever run a 10K interval with either of mine (I'm sure you saw the filter that came off the 1500 :oops: ). But, with my Lincoln or Expedition? Wouldn't think twice about it, they were both easy on oil.

Longest OLM OCI in the RAM has been 14,031km; 8,718 miles. That was a year we did a lot of driving and it was March to August. Subsequent OCI's have been anything from 10,000km to 12,000km.
 
I know he's wrong, but I see where he's coming from because I also worked in a garage doing oil changes and I saw lots of people doing 10k or less oil changes, with sludge sticking to the dipstick.
Blanket statements are the problem. I have a problem with bitog regulars telling everyone 10k is never a problem. It can be. Your 10k is probably equivalent to 3k for some people's usage.

I've seen people come in for an oil change after a couple years and 10k using conventional bulk Pennzoil, more than a qt low, lots of idle time... chunks stuck to the stick. But if you drive a steady speed on the highway for an hour a day at 70 degrees Fahrenheit, and you're running m1 or amsoil etc, the oil is probably still really good at 10k.

On to my question...did you have an injector fail or what caused you to replace them? My trucks injectors are a little bit noisy at 240k.
I had one injector fail electrically so I replaced all four.
 
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