View Poll Results: Make you choice on ecoboost or 6.2 or diesel known
3.5 Ecoboost
9
13.85%
New 6.2L Gas engine
37
56.92%
Gen 2 3.5 Ecoboost
7
10.77%
Diesel for get gas
13
20.00%
Multiple Choice Poll. Voters: 65. You may not vote on this poll
EcoBoost or 6.2
Thread Starter
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New User
Joined: Oct 2015
Posts: 7
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EcoBoost or 6.2
Ok I know this has been beaten to death in the forum but still I have a question for everyone. Would you or someone you know buy a ecoboost motor whatever its iteration is in a Superduty.
My concerns are this. The turbos on the current Ecoboost motors is rated for a service life of 150,000 miles (that figure is well documented so no flaming). Compared to current 6.2 lifespans that I am seeing here in this forum is that it could potentially be less than half of what people are getting on the current 6.2L.
Also the ecoboost if its in a superduty could be constantly under boost to get the truck and load moving. I am not in a flame war concerning whether or not its capable I worry about a motor under constant pressure lasting. Lets face this the combination superduty weight and trailer weights possible is much greater than a F150
The current 3.5 ecoboost is a heavy engine. Would it have to get heavier to accommodate the additional stresses of the superduty? Could it last if it was under constant boost, high temperature. I don't know.. I am just asking peoples opinions. One advantage I see with the Ecoboost is a motor that tows like a diesel but has maintenance like a gas engine.
edited for spelling
My concerns are this. The turbos on the current Ecoboost motors is rated for a service life of 150,000 miles (that figure is well documented so no flaming). Compared to current 6.2 lifespans that I am seeing here in this forum is that it could potentially be less than half of what people are getting on the current 6.2L.
Also the ecoboost if its in a superduty could be constantly under boost to get the truck and load moving. I am not in a flame war concerning whether or not its capable I worry about a motor under constant pressure lasting. Lets face this the combination superduty weight and trailer weights possible is much greater than a F150
The current 3.5 ecoboost is a heavy engine. Would it have to get heavier to accommodate the additional stresses of the superduty? Could it last if it was under constant boost, high temperature. I don't know.. I am just asking peoples opinions. One advantage I see with the Ecoboost is a motor that tows like a diesel but has maintenance like a gas engine.
edited for spelling
Cargo Master
Joined: Dec 2003
Posts: 2,299
Likes: 2,060
From: Central MO
Bring on the EcoBoost! I want the towing ability of the diesel without the maintenance issues. I will even eat a few MPG's to save that $8k upcharge up front.
The diesel is turbo charged and runs under boost nearly all the time. I have a feeling the next gen EcoBoost will be CGI like the 6.7L (and 2.7L EcoBoost), so longevity should not be an issue. Honestly, the turbos in the 6.4L in my truck is the least of my worries.
Though I would prefer a smaller V8 EcoBoost (4.5-4.8L maybe), I fully expect the gen 2 3.5L to show up in the '18 MY Super Duty, and be in my driveway as a '19 MY.
The diesel is turbo charged and runs under boost nearly all the time. I have a feeling the next gen EcoBoost will be CGI like the 6.7L (and 2.7L EcoBoost), so longevity should not be an issue. Honestly, the turbos in the 6.4L in my truck is the least of my worries.
Though I would prefer a smaller V8 EcoBoost (4.5-4.8L maybe), I fully expect the gen 2 3.5L to show up in the '18 MY Super Duty, and be in my driveway as a '19 MY.
Fleet Mechanic
Joined: Jul 2004
Posts: 1,517
Likes: 198
I don't think any of the current Ecoboost engines would be appropriate for the Super Duty. I doubt the would be any increase in fuel economy over the 6.2L in a Super Duty and there would likely be durability concerns. I would not consider buying one.
Super Moderator
Joined: Jan 2008
Posts: 40,050
Likes: 1,524
From: Maine, Virginia
Ok I know this has been beaten to death in the forum but still I have a question for everyone. Would you or someone you know buy a ecoboost motor whatever its iteration is in a Superduty.
My concerns are this. The turbos on the current Ecoboost motors is rated for a service life of 150,000 miles (that figure is well documented so no flaming). Compared to current 6.2 lifespans that I am seeing here in this forum is that it could potentially be less than half of what people are getting on the current 6.2L.
Also the ecoboost if its in a superduty could be constantly under boost to get the truck and load moving. I am not in a flame war concerning whether or not its capable I worry about a motor under constant pressure lasting. Lets face this the combination superduty weight and trailer weights possible is much greater than a F150
The current 3.5 ecoboost is a heavy engine. Would it have to get heavier to accommodate the additional stresses of the superduty? Could it last if it was under constant boost, high temperature. I don't know.. I am just asking peoples opinions. One advantage I see with the Ecoboost is a motor that tows like a diesel but has maintenance like a gas engine.
edited for spelling
My concerns are this. The turbos on the current Ecoboost motors is rated for a service life of 150,000 miles (that figure is well documented so no flaming). Compared to current 6.2 lifespans that I am seeing here in this forum is that it could potentially be less than half of what people are getting on the current 6.2L.
Also the ecoboost if its in a superduty could be constantly under boost to get the truck and load moving. I am not in a flame war concerning whether or not its capable I worry about a motor under constant pressure lasting. Lets face this the combination superduty weight and trailer weights possible is much greater than a F150
The current 3.5 ecoboost is a heavy engine. Would it have to get heavier to accommodate the additional stresses of the superduty? Could it last if it was under constant boost, high temperature. I don't know.. I am just asking peoples opinions. One advantage I see with the Ecoboost is a motor that tows like a diesel but has maintenance like a gas engine.
edited for spelling
As for an ecoboost vs. a 6.2L V-8, I wouldn't care for the 3.5L in the superduty but I would love to see a larger displacement V-8 GTDI engine.
Cargo Master
Joined: Dec 2003
Posts: 2,299
Likes: 2,060
From: Central MO
He is stretching it by saying 'rated for a service life.' Basically, Ford has said that they tested the turbos out to 150k+ miles to ensure failures < 150k are limited. It doesn't mean the rated service life is 150k, it just means that Ford foresees an extremely limited number of failures at less than 150k. Some people like to confuse the two...
Fleet Mechanic
Joined: Jul 2004
Posts: 1,517
Likes: 198
He is stretching it by saying 'rated for a service life.' Basically, Ford has said that they tested the turbos out to 150k+ miles to ensure failures < 150k are limited. It doesn't mean the rated service life is 150k, it just means that Ford foresees an extremely limited number of failures at less than 150k. Some people like to confuse the two...
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Super Moderator
Joined: Jan 2008
Posts: 40,050
Likes: 1,524
From: Maine, Virginia
He is stretching it by saying 'rated for a service life.' Basically, Ford has said that they tested the turbos out to 150k+ miles to ensure failures < 150k are limited. It doesn't mean the rated service life is 150k, it just means that Ford foresees an extremely limited number of failures at less than 150k. Some people like to confuse the two...
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Cargo Master
Joined: Dec 2003
Posts: 2,299
Likes: 2,060
From: Central MO
That's a good explanation. There's even more to it when you are talking about larger trucks. GVW/GCW is factored in to the testing duty cycles, so even if a particular engine passes testing for a certain GVW truck, that engine may not pass in a heavier truck. Doesn't mean the engine in question is 'bad', just means that failures would become more common in a truck with a heavier GVW, possibly to the point Ford would not want to warranty it. I was told the 6.2L was eventually supposed to replace the 6.8L V-10 but testing revealed potential issues, which is why that engine is limited to the F-250 and 350 only. All because the testing duty cycles were different for the F-450 and heavier trucks.
Posting Guru
Joined: Nov 2010
Posts: 2,043
Likes: 4
Why not the 5.0 as an option......I'd even go as far to say why not offer both ecoboost engines 3.5 and 2.7......the line between Superdutys and F150s is increasingly blurred with new Superdutys sharing same cab......anyone of these motors as they stand currently could do the job offering the consumer the right option for them.....and of course the diesel option for those that need the most muscle.......give it all to us Ford 
New User
Joined: Sep 2015
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From the ecoboost manufacturer Borg Warner
90 % of all turbocharger failures are due to the following causes:
Penetration of foreign bodies into the turbine or the compressor
Dirt in the oil
Inadequate oil supply (oil pressure/filter system)
High exhaust gas temperatures (ignition system/injection system)
These failures can be avoided by regular maintenance. When maintaining the air filter system, for example, care should be taken that no tramp material gets into the turbocharger.
However considering that in a SD truck they might be under high stress and I found a lawsuit against the manufacturer of the ecoboost turbo. In it they had enormous failure rates. Could this also occur if the ecoboost turbos were subject to superduty stresses daily?
In it the lawsuit stated that Mack trucks -- Once the turbochargers reached Mack‟s consumers, they began to fail at high rates. Mack ultimately paid over $45 million to its customers from warranty claims brought through August of 2008
90 % of all turbocharger failures are due to the following causes:
Penetration of foreign bodies into the turbine or the compressor
Dirt in the oil
Inadequate oil supply (oil pressure/filter system)
High exhaust gas temperatures (ignition system/injection system)
These failures can be avoided by regular maintenance. When maintaining the air filter system, for example, care should be taken that no tramp material gets into the turbocharger.
However considering that in a SD truck they might be under high stress and I found a lawsuit against the manufacturer of the ecoboost turbo. In it they had enormous failure rates. Could this also occur if the ecoboost turbos were subject to superduty stresses daily?
In it the lawsuit stated that Mack trucks -- Once the turbochargers reached Mack‟s consumers, they began to fail at high rates. Mack ultimately paid over $45 million to its customers from warranty claims brought through August of 2008
Super Moderator
Joined: Aug 2003
Posts: 25,479
Likes: 742
From: Isanti, MN
That doesn't make much sense to me, can you source that? I've always been of the understanding that cooling capability has more to do with the size of the radiator and coolant flow than anything else. How could the same size radiator do a better job cooling a V10?
