MPG for 3.5 EcoBoost with 3.31 rear end - Page 3 - Ford Transit USA Forum
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post #21 of 587 (permalink) Old 01-11-2015, 04:04:PM
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I doubt an increase in mpg, but if it helps keep internal things cleaner then I will use it.

But my question is how do we know that an independent shell, bp, etc, gas station is actually buying the right fuels?

2015 Transit Van 250 MR 148" EB 3.31LS rear AC. Born on 12/18/2014
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post #22 of 587 (permalink) Old 01-11-2015, 04:12:PM
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I'm still not convinced that Top Tier means anything, but if it is a real difference it is supposed to be in keeping the injectors and other components clean via the additives, right? Do the Top Tier advocates claim an MPG increase?
The problem with a direct injection engine is the gasoline detergents can not clean the intake manifold because gas does not pass through the manifold. Ford feeds the crankcase gases into the intake manifold and they are apparently the source of dirty intake manifolds. There are aftermarket manufacturers that sell a filter system to collect the oils/etc. from the crankcase gas before the air enters the intake manifold. Does anyone have experience with one of these filters? Seems to be a logical improvement.

2015 high roof 148" WB 3.5 Ecoboost 3.31 LS rear cargo.
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post #23 of 587 (permalink) Old 01-11-2015, 04:35:PM Thread Starter
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. . .

Oh yea, one of my neighbors passed me on the road and said I need a bigger trailer. He thought an airstream would look good behind it
Now you're talkin' !

Excellent report star gazer, and yes ditto to your 15-20 MPG range being good for towing and the 3.5/3.31 combination power train.

As to the non-MPG issues everyone is starting to discuss, would it be possible to keep this thread focused on MPG's for this specific power train? Here are some other threads which discussed other MPG issues, different rear ends, Tier1 gas, etc..

Regular Gas in EcoBoost? and other questions about that engine

Ecoboost vs 3.7L (to beat a dead horse!)

87 vs. 89

3.31 vs 3.73

Regular Gas in EcoBoost? and other questions about that engine

More mileage data for 3.7L

Idling and fuel mileage

Thanks in advance for everyone's understanding that having a narrow focus here will permit a fuel-efficient discussion . . .

Thanks,

Peter
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2015 XLT 150 Wagon, 3.5EB/3.31LS, 130" WB, low roof, 8-passenger, full trailer tow incl. brake controller, ordered 12/14, delivered 4/20.
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post #24 of 587 (permalink) Old 01-11-2015, 08:13:PM
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I now have over 3,000 miles on her. The last tank was 17.2mpg (75% city miles).

Something peculiar happened with Tripmeter 2. It should be showing over 2300 miles, but is showing 238.5 miles and I don't remember resetting it? Tripmeter 2 shows 18mpg which I had been watching it slowly drop from the previous 18.2mpg.

I'll continue to let Tripmeter 2 run since it is currently showing what should have been the correct avg for the last 2300 miles or so.
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-- Rick
2015 150 Wagon LR XLT 3.5EB/3.31, 10 passenger
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post #25 of 587 (permalink) Old 01-11-2015, 08:23:PM
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I dropped the tire pressure on this last tank to 45F/60R vs the recommended 50F/71R, since I'm not carrying a load and have removed some seats. I may experiment more with this. The pressures recommended on the door pillar are for max load.
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2015 150 Wagon LR XLT 3.5EB/3.31, 10 passenger
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post #26 of 587 (permalink) Old 01-12-2015, 08:09:AM
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The problem with a direct injection engine is the gasoline detergents can not clean the intake manifold because gas does not pass through the manifold. Ford feeds the crankcase gases into the intake manifold and they are apparently the source of dirty intake manifolds. There are aftermarket manufacturers that sell a filter system to collect the oils/etc. from the crankcase gas before the air enters the intake manifold. Does anyone have experience with one of these filters? Seems to be a logical improvement.
Supposedly some manufacturers have eliminated or reduced this well known problem. Do we have any info showing a recent improvement in the prevention of buildup at the intake valves in the Ford 3.5 Eco?
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post #27 of 587 (permalink) Old 01-12-2015, 08:21:AM
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As to the non-MPG issues everyone is starting to discuss, would it be possible to keep this thread focused on MPG's for this specific power train? Here are some other threads which discussed other MPG issues, different rear ends, Tier1 gas, etc..


Thanks in advance for everyone's understanding that having a narrow focus here will permit a fuel-efficient discussion . . .

Thanks,

Peter
As nice as that concept sounds Peter, it just never ends up working that way in forums. For example, this morning in my email I had a notice that I was quoted by Orton. I clicked on the link and saw what he posted, and replied to it. In a perfect forum world before replying I would have first gone to the complete thread to get an idea of the true topic, then decided if my thoughts were appropriate for the one I was quoted in, and if not started a search for a better one or created a new one. Never gonna happen.
The most active and informative forums are ones where most of the participants read all new posts, scanning quickly, and responding often. Trying to keep people on topic etc. will just reduce the activity here.
Nothing wrong with having a few specific MPG threads etc, but there will always be a few off topic posts in them, still, it's not like this forum will turn into a spam fest or anything.
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post #28 of 587 (permalink) Old 01-12-2015, 09:03:AM
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As nice as that concept sounds Peter, it just never ends up working that way in forums. For example, this morning in my email I had a notice that I was quoted by Orton. I clicked on the link and saw what he posted, and replied to it. In a perfect forum world before replying I would have first gone to the complete thread to get an idea of the true topic, then decided if my thoughts were appropriate for the one I was quoted in, and if not started a search for a better one or created a new one. Never gonna happen.
The most active and informative forums are ones where most of the participants read all new posts, scanning quickly, and responding often. Trying to keep people on topic etc. will just reduce the activity here.
Nothing wrong with having a few specific MPG threads etc, but there will always be a few off topic posts in them, still, it's not like this forum will turn into a spam fest or anything.
That's why I don't post stuff anymore, The "thank you in advance" means you have to do what is said This "thank you in advance" is BS

The forum was better before
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post #29 of 587 (permalink) Old 01-12-2015, 09:24:AM Thread Starter
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Certainly everyone is free to let this sub-forum

(specifically created to track MPG for the 3.5/3.31 drive train [ please re-read the first post ] )

Devolve

into a free-for-all spasm of mental incontinence . . .

OR

everyone can see the value of sticking to a specific topic for a consciously recognized purpose.


Seems to me that people mainly look to the right, to see what are the the most "Recent Discussions" -- pick one that looks interesting

-- regardless of what sub-forum it is in
-- regardless of what the first post requests for participation in the sub-forum

and just post away yadda yadda yadda . . . .


Where was it yesterday? Was it Whitedog who asked that people get back on topic regarding MPGs for idling time with the diesel?

A refreshing breath of air!


The point is: what do YOU want this place to be?


PS -- everyone here is free to start his or her own sub-forums for specific purposes, like Whitedog did. If you can't respect the parameters of discussion here, why should anyone respect your requests when YOU start your own topic ?

Do unto others . . .

2015 XLT 150 Wagon, 3.5EB/3.31LS, 130" WB, low roof, 8-passenger, full trailer tow incl. brake controller, ordered 12/14, delivered 4/20.

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post #30 of 587 (permalink) Old 01-12-2015, 01:14:PM
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Don't mean to derail this thread, but since we're on the subject of EcoBoost (and MPG), look what Ford is bringing back, from a nine year hiatus:

The new GT is the sickest car Ford has ever made | The Verge

Always thought the GT was the most amazing sounding street legal car, not just the exhaust under acceleration, but the mechanicals at work even at idle. Wonder how this will compare, and what the MPG will be (hah - not something a buyer will worry about).

Last edited by Brad; 01-12-2015 at 01:18:PM.
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