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Hi folks. I’m looking to buy a 2018 F-150 diesel. Any owners here with high mileage on your truck? Say above 125,000 miles? What has your experience been as far as reliability? What are the common failure points?

I have an idea how the F-150s last but what about the 3.0? Thanks in advance!
 

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There is a guy on youtube with a channel called ArmyProperty. He is an expediter who added a diesel F-150 to his fleet. He recently posted a 5,000 mile review, and is racking up 1,100 miles/week. So in two years you will probably have your answer.

There is also this thread:
 

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I have a 2019 with 160,000 km so 100,000 miles. Have literally done nothing to this truck other than oil changes and fuel filters. Have owned 5 different F150s with the 4.6, the 5.4, the 3.5 and the 2.7. This is easily the best engine. I cant figure out why Ford didnt push them a little harder and discontinued them. At my dealer it was like they didnt even exist.
 

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2018 with 78k. Just had the little rubber seal that lives in the oil cooler below the cartridge filter break and move causing low oil pressure at low RPM. Ford said it’s not a warranty part and said $2,000 parts and labor. If you don’t have this issue now, you probably will and the four dealers around me didn’t have a clue. I found it on a forum and brought it to their attention.
 

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Ahh, you have been bitten by the nub. If you haven't read it yet take time to read all about our experiences with your issue. Sadly there is no easy way out since no one sells the $1.50 part that needs to be replaced.

Read this thread Here

There are several threads about this but I think this one covers it best.

Of note is that whoever changes your oil caused the breakage. In my case it was me. It is a case of Read The Manual! which obviously I didn't and neither did your mechanic. By the way, welcome and hopefully your future posts can have better reports, this one is certainly a downer but you are in good company.
 

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Ahh, you have been bitten by the nub. If you haven't read it yet take time to read all about our experiences with your issue. Sadly there is no easy way out since no one sells the $1.50 part that needs to be replaced.

Read this thread Here

There are several threads about this but I think this one covers it best.

Of note is that whoever changes your oil caused the breakage. In my case it was me. It is a case of Read The Manual! which obviously I didn't and neither did your mechanic. By the way, welcome and hopefully your future posts can have better reports, this one is certainly a downer but you are in good company.
Yes, and it probably was me. Hard to say because I go back and forth from having ford do it when it’s in for a recall or something trivial and myself when I don’t have time to sit at Ford for three hours. I’d love to know if anyone gets somewhere with Ford on a recall or better solution than $2,000…
 

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I guess you are the high milage winner so far! Does your engine burn any oil, or has consumption increased over time? I think these are amazing diesels.
 

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Engine and trans are tight. I haven't even noticed any seepage. No knocks, clanks, or weird noises. It has a little rattle at 1st start up but has always had that. It might be injector knock or just valve train. But it's not of any concern.

I'm installing egr delete here in next week or so, so it'll be interesting to see the soot build up. Overall I love the engine. Alot of talk about it being underpowered compared to the 3.5. But what sold me was the numbers. Yes the 3.5 makes more power, but it does so at 5500rpm.....lol. I want a truck, not a racecar.

With the tune I've seen a calculated torque number of over 560 at 1800 rpm. I'm sure it's not super accurate, but it's up there!
 

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I'm at 135k. Full tune and delete, 125hp amdp hiss tune. Zero issues. Currently waiting on amdp to revise the trans tune to remove the rev match on the downshift
How is your fuel economy been using the 125hp tune? I've been running the 25hp tune and the mileage is about the same as it was when it was stock. I'm at ~53,000 miles so far without any issues. Love this engine.
 

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How is your fuel economy been using the 125hp tune? I've been running the 25hp tune and the mileage is about the same as it was when it was stock. I'm at ~53,000 miles so far without any issues. Love this engine.
I've been getting 24mpg avg. That's hwy, city and pulling 5klb trailer. Not pulling everyday. Best long hwy I've seen is 33 at 65 on eco mode
 

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I've been getting 24mpg avg. That's hwy, city and pulling 5klb trailer. Not pulling everyday. Best long hwy I've seen is 33 at 65 on eco mode
That's pretty similar to what I have been getting. I might have to try the 125 hp tune. I haven't yet because I tow quite a bit and was concerned about high EGT's.
 

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There's a guy on one of the 3.0L PSD Facebook groups that just hit 300,000 km (186k miles). Only issues he had was bad wheel bearing around 200k km and turbo at 280k km.
 

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Hi folks. I’m looking to buy a 2018 F-150 diesel. Any owners here with high mileage on your truck? Say above 125,000 miles? What has your experience been as far as reliability? What are the common failure points? I have an idea how the F-150s last but what about the 3.0? Thanks in advance!
I have 146,000 miles No issues Have 150,000 mile bumper to bumper ford warranty or 7 years 2018 f150 platinum diesel Taking timing belts to at least 175,000 miles to 200 thousand Have hundred dollar deductible I did have the starter go bad at 86 thousand miles under warranty and 4 wheel drive actuators went bad at 65 thousand miles Engine nothing
 
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