Amsoil Ecoboost 70k mile engine taken apart

"timing chains are designed to last the life of the engine"
Because they are. Let's ignore that fact that the chain itself didnt fail here, the phaser did, but whatever. ....The fact that Ford cant figure out how to make these last even using a premium oil like Amsoil should tell you this is an engineering problem and not a maintenance item.
 
Sorry, I forgot we're being pedantic and will argue that the chain was a lifetime but supporting parts (phasers and guides) may not be. I don't think that's quite what people are arguing when they say chain (systems) are better than belts.

This is not a problem limited to Ford.
 
Saw that yesterday. Sadly it didn't do anything for the phasers.....dang shame too after all that work on the owners part. Here's to hoping redesign #3 is the magic number.

Pretty though. I'm pretty confident my 3.5 will be similar with my maintenance choices.
Help me here

Does the 2025 Gen 1-2 not really 3 in my Transit have better phasers or are they all bad?
 
At this point there is no way to tell if the 25 has problematic cam phasers. Time will tell. Report back.

And use a quality oil whatever you think that is :unsure:
Citgo?

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This thread is perverse in the extreme. The issue is a modern engine design that cannot hold up beyond 70,000 miles, resulting in this bricked car. The discussion, though, seems to be a pontification about how clean the innards of this car are, and how well Amsoil’s product has performed. While I have not used Amsoil yet, there is plenty of evidence that is is among the very best oils going. But the fact is that you could use the cheapest oil going and still get to 70,000 miles. And the cleanliness? Very nice, but not getting this poorly designed engine running again.
 
10W-40 synthetic is an antidote to phaser problems. It works by facilitating proper phaser control, preventing wear.
I have often wondered if a higher viscosity grade in these Ford engines would help over the long term. I know my little Nissan simply LOVES AMSOIL Signature Series 5w30.
 
Ford can't spec a cam phaser to save their lives. No oil will fix engineering/design flaws.
I'm pretty sure our old 2005 Expedition had the cam phasers that apparently go bad, but we never had any trouble out of that engine. It had ~250K miles on it when we gave it to my wife's uncle, and it's still running fine. I guess they can go bad at random or not at all.
 
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