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Message
Gas mileage has increased on my new Ecoboost.
Posted on 12/13/14 at 8:25 pm
Posted on 12/13/14 at 8:25 pm
I bought a new F150 4x4 Ecoboost back in October and initially wasn't very happy with the gas mileage. I was getting about 16-16.7 mpg at Highway speeds (70-75 mph), but now that I've got 4,000 miles on it, seems to be better. Got 18.8 mpg on a 5 hour drive to Texas the other day. Majority of the time doing 75 mph. 
Only thing I can guess is after the rings/cylinders broke in, there's less friction on them. Can one of you grease monkey OBers corroborate this?
Anybody else see this happen on a new vehicle?
Only thing I can guess is after the rings/cylinders broke in, there's less friction on them. Can one of you grease monkey OBers corroborate this?
Anybody else see this happen on a new vehicle?
7
Posted on 12/13/14 at 8:28 pm to bhtigerfan
If all it takes is 18 mpg to make you happy, 16 won't break you.
Posted on 12/13/14 at 8:32 pm to bhtigerfan
Does this not happen with all vehicles?
Posted on 12/13/14 at 8:44 pm to Boats n Hose
quote:I assume it does, but this is only my second new vehicle and my first didn't have a mpg calculator.
Does this not happen with all vehicles?
Posted on 12/13/14 at 8:45 pm to bhtigerfan
Yes it does. Didn't get my best mileage on my tundra till I hit 20k
Posted on 12/13/14 at 8:46 pm to Geauxtiga
quote:18.8 party pooper. So I should be sad that my mileage has increased by 2 mpg? WTF?
If all it takes is 18 mpg to make you happy, 16 won't break you.
This post was edited on 12/14/14 at 6:38 am
Posted on 12/13/14 at 8:48 pm to MorningWood
quote:Damn, 20k? Wonder why so long? That's why I was asking for opinions from the engine experts.
Yes it does. Didn't get my best mileage on my tundra till I hit 20k
I'm wondering if I'll see anymore increase from here on out?
Posted on 12/13/14 at 10:48 pm to bhtigerfan
I'm not a grease monkey, but its all moving parts that have a break in period before your best fuel efficiency is achieved. Engine, belts, transmission, differential, ect... but 18-19 isn't really all that phenomenal, I got 18.5 out of my 5.0 on long interstate trips in my truck if I'm going east-west.
Posted on 12/14/14 at 6:34 am to bhtigerfan
Application of the skinny pedal probably made that difference.
Posted on 12/14/14 at 6:50 am to Citica8
I'm not saying that 18.8 is "phenomenal", I'm just happy that it's closer to what the estimated MPG is and not sub 17 like I was getting.
Like I said, I've never had a "new" vehicle with a mph calculator, so I'm kinda pleasantly surprised by the increase after the break-in. Really wasn't expecting a 2 mpg increase.
Like I said, I've never had a "new" vehicle with a mph calculator, so I'm kinda pleasantly surprised by the increase after the break-in. Really wasn't expecting a 2 mpg increase.
Posted on 12/14/14 at 6:52 am to DownshiftAndFloorIt
quote:Cruise control?
skinny pedal
Posted on 12/14/14 at 10:18 am to bhtigerfan
Every Ford I've ever owned or leased has done this around 2500 miles or so.
No idea why, but it seems germane to Fords.
My 2011 has went down though, but I attribute that to the accumulation of tools, lights, chains, ammo, Yetis, and all the other crap I ride around with.
No idea why, but it seems germane to Fords.
My 2011 has went down though, but I attribute that to the accumulation of tools, lights, chains, ammo, Yetis, and all the other crap I ride around with.
Posted on 12/14/14 at 10:24 am to bhtigerfan
It's like a pocket pistol. Needs a 200 rd break in period i 'spose.
Posted on 12/14/14 at 10:31 am to dstone12
Or a beretta
Posted on 12/14/14 at 10:32 am to KingRanch
Posted on 12/14/14 at 11:22 am to Citica8
Engines used to have a genuine "Break in period" during witch the medal parts actually wore in with extra friction, heat and microscopic metal in the oil. That's why you had breaking oil Today's engines are made with so much more precision from technology there is at lot less breaking in going on but it is not totally eliminated.
There is also the PCM's learning period. The computer "learns" how you drive and adapts various engine and transmission settings that allows the vehicle to work with your style more efficiently. Now if the battery is disconnected or dead the system has to relearn.
Both of these will allow any vehicle to improve gas mileage during the early stages of ownership but I would be surprised if these stages are as long as 20K miles. I think it's generally believed by dealer service people and OEM reps that the current break in period is the the time before the first oil change. And at what mileage that happens is certainly debatable.
There is also the PCM's learning period. The computer "learns" how you drive and adapts various engine and transmission settings that allows the vehicle to work with your style more efficiently. Now if the battery is disconnected or dead the system has to relearn.
Both of these will allow any vehicle to improve gas mileage during the early stages of ownership but I would be surprised if these stages are as long as 20K miles. I think it's generally believed by dealer service people and OEM reps that the current break in period is the the time before the first oil change. And at what mileage that happens is certainly debatable.
This post was edited on 12/14/14 at 3:18 pm
Posted on 12/14/14 at 11:45 am to cajuncarguy
OP, get rid of the 20's and watch mileage increase, yo.
Posted on 12/14/14 at 12:52 pm to bhtigerfan
quote:
mpg calculator
I would calculate myself, just to check. Those can be slightly inaccurate. The one on my car has been optimistic by about 10%.
Posted on 12/15/14 at 1:06 am to H.M. Murdock
quote:You talking about the factory 20" rims? Oh hell no. And do what, go smaller?
OP, get rid of the 20's and watch mileage increase, yo.
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