New (to us) Ecoboost with 3.15 Gears

[Scratch]

Originally Posted by MilCop4523

Sure have and did't really notice any lack of power in ours. Swapped out the oem air for cold air intake and goes like snot.
Pulling a 27 RKSS 2012 Salem 33 feet overall with 6400 dry weight.
We hauled to NH for the July race and had to slow down for 1500 Chevs and 5.4 Fords. And that ws with full water tank for another 333 lbs - plus 12 more gallons in containers in te box withteh generator and spare fuel. No one seemed to be hauling with a Dodge.
Just watch your speed.

Thanks. I needed that!

Mine's a 4X2. Your 4X4 has a 3:15 rear?

[Capsfloyd]

I have a 09 rambox crewcab 5.7 Hemi and 3:21 Rearend
I tow a TT. Around 7,000 lbs
Never look back , put it in tow/haul mode and go on
When not towing the best I get is snot 21.5 mpg on the highway

If you tow 6-7 times a yr , youll be fine ,
Go for it Turn those turbos loose

[Len & Cheri]

Originally Posted by Scratch

Thanks Len & Cheri;

Love that Mustang! Got an '07 Cali Special in the garage...

Thanks! It's always nice to have more Mustang Lovers around Do you have photos of your Cali in your album?

[Scratch]

Originally Posted by Capsfloyd

I have a 09 rambox crewcab 5.7 Hemi and 3:21 Rearend
I tow a TT. Around 7,000 lbs
Never look back , put it in tow/haul mode and go on
When not towing the best I get is snot 21.5 mpg on the highway

If you tow 6-7 times a yr , youll be fine ,
Go for it Turn those turbos loose

Same situation. That's what I'm, talking about! Thanks Capsfloyd...

[Scratch]

Originally Posted by Len & Cheri

Thanks! It's always nice to have more Mustang Lovers around Do you have photos of your Cali in your album?

Here's a pic of 'Gus' in the stable:

[Guessboy3]

Originally Posted by Scratch

The tranny is an SST which allows the driver a second tow option to shift from D (Drive) Tow/Haul mode to M (Manual) mode with gear lockout provisions. (I was wondering what that 'M' meant on the shift select panel. In the 'M' mode, 6th, 5th, and/or 4th (overdrive) gears can be locked out as desired/necessary for hills/steep upgrades. It also allows to select gears manually using plus/minus buttons.

The Ford guy said with the 3:15 gears, I'll probably use O/D lockout options more than the guys with 3:55 or 3:73 rears and will probably gas up more often.

Close. In 'D' you can lock out individual gears (starting at 6 and working down.) In 'M' you make all the changes up shifts and downshifts. My 5.0 with 3.73 gears rarely goes into 6th while pulling my trailer (but about 1500lbs heavier than yours.)

Also tow/haul mode is not needed on straight and level travel and is made more for hilly areas. If you have the LCD screen in the dash there's an info screen somewhere explaining it in detail.

Have fun.

[great white]

Listed "dry weights" as seldom accurate.

Depending on manufacturer, dry weight is without batteries, propane, etc. some are even worse as they dry weight can be before options like slides, oven, etc.

You can probably add around 500 lbs right off to the listed weight for the trailer.

Unfortunately, dry weight for vehicles is the same. Ie: no oil, fuel, brake fluid, batteries, coolant, etc. add another 500 lbs.

Only real way to know what you're dealing with is to scale it empty and then loaded.....

[Len & Cheri]

Originally Posted by Scratch

Here's a pic of 'Gus' in the stable:

Very nice! Super clean

[Scratch]

Originally Posted by Guessboy3

Close. In 'D' you can lock out individual gears (starting at 6 and working down.) In 'M' you make all the changes up shifts and downshifts. My 5.0 with 3.73 gears rarely goes into 6th while pulling my trailer (but about 1500lbs heavier than yours.)

Also tow/haul mode is not needed on straight and level travel and is made more for hilly areas. If you have the LCD screen in the dash there's an info screen somewhere explaining it in detail.

Have fun.

Greatly appreciated; I'm learning!

Just to make sure: in 'D', press the + or - buttons to lock out or add back the O/D gear?

Tow/Haul for hilly/mountainous terrain

Seems the 'M' setting would be best used in town while towing to take advantage of extending the torque available in 1st gear etc?

[Scratch]

Originally Posted by great white

Listed "dry weights" as seldom accurate.

Depending on manufacturer, dry weight is without batteries, propane, etc. some are even worse as they dry weight can be before options like slides, oven, etc.

You can probably add around 500 lbs right off to the listed weight for the trailer.

Unfortunately, dry weight for vehicles is the same. Ie: no oil, fuel, brake fluid, batteries, coolant, etc. add another 500 lbs.

Only real way to know what you're dealing with is to scale it empty and then loaded.....

Yes sir... I need to get to a scale, for sure so I know exactly what I've got.

[acadianbob]

We tow almost entirely in 6th gear with our Eco with 3.73s. Your 3.15s in 5th are almost identical in ratio to our 3.73s in 6th. You will be fine. Don't sweat it and have a great time.

[Scratch]

Originally Posted by acadianbob

We tow almost entirely in 6th gear with our Eco with 3.73s. Your 3.15s in 5th are almost identical in ratio to our 3.73s in 6th. You will be fine. Don't sweat it and have a great time.

Thanks much for the vote of confidence; your post is much appreciated. The more I research, the better I feel. Now if next Friday would just get here...

[acadianbob]

Originally Posted by Scratch

Thanks much for the vote of confidence; your post is much appreciated. The more I research, the better I feel. Now if next Friday would just get here...

Yeah, you've got all kinds of torque available. Have fun. Be safe.

[Scratch]

Just a follow-up to let you all know the truck handled the trailer easily. Took the O/D advice and locked out 6th gear in the hills. Hardly knew the trailer was there.

Not sure my EQ setup is tuned in right so I'll have the dealer give it a once-over.

Only able to get 9.7 driving through the hills on the return trip pulling around 6200 lbs. Flat interstate was much better (almost 12mpg). I'm sure the 3:73 gears are the ultimate complement to the EB engine, and the 3:55 gear setup might be the best compromise of MPG and performance, but I'm very happy with the way the 3:15s handled the load and real happy with the 23/24mpg unhooked driving out here on the these country roads.

Thanks again for your cumulative advice to this ole newbie...

[ironj]

great to hear! i have YET to talk to an eco owner who was dissapointed with its towing abilities......especially for those who tow only occasionaly. I have ONE friend who traded his in for a 6.7 diesel......but with 5 different trailers, i think it suited his needs better from the get go....

enjoy! maybe well pass ya while cruising through hill country soon!

[SaskCampers]

Another happy EB owner story. Congrats and glad things worked out well foryou.

[wv campers]

Previously owned a 07 F150 with the 5.4. Bit the bullet this year and bought a 2012 ecoboost. No complaints at all. Pulls our 28' tt with ease. Very impressed in how it does on the mountains and hills. Doesn't loose any power.