Ford. Oil can’t fix stupid engineering.
Amsoil Ecoboost 70k mile engine taken apart
- Thread starter Navi
- Start date
CleanSump
Site Donor 2026
in the BMW forums we called it Castrol Gold.It's called "moly tan". Maybe you should go revisit that other thread as well!
I’ve read that the clogged screens have been caused by casting debris in some of the gen 1 3.5 ecoboost engines. This makes sense to me given the fact that many of these engines have gone high mileage without issue.
I had an early production 2018 Lincoln Navigator and it was in the shop for 3 months and engine opened 3 different times. A lot of things were replaced. Towards the end of ownership it finally ran good but it was worked on extensively.
I can tell you expertly that engine was a lemon and no oil or oil changing routine could fix it. Now these same trucks are trickleing into shops with the same problems I had with the 2018. This time though everyone knows whats wrong and how to fix it. Ford even has "kits" for things like the phasers. Back in 2018 Ford sent an engineering team and no one had any idea.
The newer engines...2023+ years are fixed. As of 2024 production the 10 speed transmission is completely fixed. Ford does eventually get it right but it takes time and thankfully we have Google to follow along with the updates.
I can tell you expertly that engine was a lemon and no oil or oil changing routine could fix it. Now these same trucks are trickleing into shops with the same problems I had with the 2018. This time though everyone knows whats wrong and how to fix it. Ford even has "kits" for things like the phasers. Back in 2018 Ford sent an engineering team and no one had any idea.
The newer engines...2023+ years are fixed. As of 2024 production the 10 speed transmission is completely fixed. Ford does eventually get it right but it takes time and thankfully we have Google to follow along with the updates.
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Non-FB (gross) link for anyone who wants it.
Have to agree that is a very clean engine. Wow. Unfortunate that it's getting torn down at 73,000 miles. I guess that is the Ford life.
Always see a lot of Amsoil teardown photos. I wonder where the Euro oil teardowns are. @edyvw Maybe when you run Euro oils you never need to go inside the engine.
Moly Cling
alas, for I knew thee well.
alas, for I knew thee well.
It didn’t fail. Common cam phaser problems.
Looks good. Back in 2019 I posted some under the cam cover pics here of my 98 F-150 with the 4.6L V8. At 250K miles I changed the chains, tensioners and guides. This engine had plain jane Mobil 1 5w-30 for the first 150K miles then Walmart Synthetic Super Tech after that. Changed every 5K miles. Everything looked great, cams, followers, etc. Someone else is driving that truck now and it is still going great. I figure well over 300K miles now.
OVERKILL
$100 Site Donor 2021
Yup, I've seen high mileage (200K) SBF's that clean, Mobil 1 Tri-Syn.
Good generation. Have a family member with a 2000 F-150. Over 300k with just basic maintenance. No major issues besides wear and tear items.
Gen 1 3.5 eco didn't really have phaser failures. Early models had chain stretch issues that caused timing codes and eventually engine failure if ignored too long. Higher viscosity or higher quality oil can prolong when this occurs.
Gen 2 3.5 eco almost all had phaser failures, usually around 40-60k miles. The updated phaser design around 2022 fixed this problem.
Gen 2 3.5 eco almost all had phaser failures, usually around 40-60k miles. The updated phaser design around 2022 fixed this problem.
Same YouTuber in the OP's post advocated 5W-30 over 5W-20 called out in the Triton 5.4L 3V engines. Claimed he saw a lot less of those coming in for timing jobs than those that stuck with the recommended 5W-20.
Im running 0w-40 in the 3.5 n/a version
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