EcoBoost to GT observation

[RedTetsu13]

I thought my eb with ford perf tune was glorious. Still got 33-34mpg on highway with the 3.31 gearing, and manual and was just a hoot to drive. that said, they took manual away from ecoboost so I will never buy one again.

the gt is great, everything is great, except mpg. thats the only con imo. ecoboost premium package with perf upgrades and ford tune was absolutely perfect to me though. as I dont use the power in that, let alone a GT.

my current is. a 2012 scion tc, with like 180hp 180tq, and that is perfect fine for me too. lol.

I'll fight for the GT here a bit lol granted part of it is completely on the driver and driving style, but with 3.55 gearing with a sticky boi (I apologize for my ugliness) I've been getting about 27 MPG on the highway (it fluctuates between 25-27) granted city its more or less consistently 15-17 mpg (again dependent on driving) which for a V8 isn't bad at all. I'm using 87 and I feel the amount of power stock is perfect (ie no need to touch the engine which is perfect for me as I don't want to try modding the engine at all, as an apartment dweller its a pain in the a$$ to try to do that, speaking on when I had my eco).

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[Jackal]

FWIW, we ran 91 oct in both the EB and the GT so far, usually ethanol-free when only $0.05 more per gallon. I plan on looking into consequences of running a lower octane in the GT since no plans to tune it before at least the initial 3/36,000.

 

[Tucker80]

I'll fight for the GT here a bit lol granted part of it is completely on the driver and driving style, but with 3.55 gearing with a sticky boi (I apologize for my ugliness) I've been getting about 27 MPG on the highway (it fluctuates between 25-27) granted city its more or less consistently 15-17 mpg (again dependent on driving) which for a V8 isn't bad at all. I'm using 87 and I feel the amount of power stock is perfect (ie no need to touch the engine which is perfect for me as I don't want to try modding the engine at all, as an apartment dweller its a pain in the a$$ to try to do that, speaking on when I had my eco).

How in the world are you actually getting anywhere near that? I run 93 in my 22 GT 10spd 3.55 and with almost perfect 50/50 city vs. highway I get a hand calculated 16.3 - 16.7mpg when driving only somewhat aggressively. Getting on it and it's not even close to the 16.5 avg.

 

[Jackal]

I can't even chime in on the EB PP1 mpg's. I just know 3 weeks ago I did about 280 mi. with motivation, and I still had a needle width over half full afterwards. It feels like the GT drinks it fast enough you can watch the needle dip, but who cares!

 

[RedTetsu13]

How in the world are you actually getting anywhere near that? I run 93 in my 22 GT 10spd 3.55 and with almost perfect 50/50 city vs. highway I get a hand calculated 16.3 - 16.7mpg when driving only somewhat aggressively. Getting on it and it's not even close to the 16.5 avg.

Running my own calculations the first 6 months I've had the car I confirmed that my computer is about 1 mpg off what it says.

That said these are the extremes and not a combined total that I do. Combined (where I'm doing probably 70 city to 30 Highway) I'm seeing in the bounds of what you are getting. I think it was either edmunds or car and driver that confirmed that the application of the 10A vs the Stick is actually a net neutral with the 5.0) (interestingly enough I think they also tested an eco similarly and got 1 mpg worse compared to the stick).

That said I can't call any of my normal driving remotely aggressive. Rarely get to a quarter throttle (my estimate) in 90% of my city driving to begin with. Should also mention shift pts as well: On avg I'm generally shifting from 1-2 almost immediately after getting rolling, 2-3 generally happens around 30 mph mark, and then I flip it into 4 at around 40-45 mph. On on/exit ramps, I generally leave it in 3rd to roll on and accelerate to about 55-60 mph, switching to 4th at that speed and then going up to 5th at around 70 mph, before hitting my usual cruising speed of 75 and putting it into 6th.

That said I've always had a light foot while driving (which is why unless there is ice/snow out I probably won't turn into a meme) & the amount of traffic in my area normally blocks me from driving like a headass 99% of the time. For reference I can usually make a tank of gas last about 1.5-2 weeks under the following conditions (going to Kendo once a week which is my highway drive about 11-15 miles depending on practice location), work 2x week (Ford WHQ is about 11 miles from my apartment one way), and 1x week grocery runs (about a 5-10 mile drive round trip depending on the route I take). Most of the time what eats up my gas tank is going to cars and coffee's where I will see about a 1/4-1/3 of my tank disappear as I'm generally driving like a headass to the event, after the event, and also any time I have to rev the car like a mustang owner should lol.

 

[RedTetsu13]

FWIW, we ran 91 oct in both the EB and the GT so far, usually ethanol-free when only $0.05 more per gallon. I plan on looking into consequences of running a lower octane in the GT since no plans to tune it before at least the initial 3/36,000.

As long as you are using top tier gas, I haven't found anything regarding this matter. Its optimized for 93 (max hursepwrs) but it runs fine on 87, in fact owners manual shows (unless you are tuned) that the minimum octane rating is 87. Given I'm pleased enough right now by the 'derated' power, I see no need to go the tuning route or even go 93 (although I might jump for the 93 in the weeks leading up to a track day).

 

[Tucker80]

Running my own calculations the first 6 months I've had the car I confirmed that my computer is about 1 mpg off what it says.

That said these are the extremes and not a combined total that I do. Combined (where I'm doing probably 70 city to 30 Highway) I'm seeing in the bounds of what you are getting. I think it was either edmunds or car and driver that confirmed that the application of the 10A vs the Stick is actually a net neutral with the 5.0) (interestingly enough I think they also tested an eco similarly and got 1 mpg worse compared to the stick).

That said I can't call any of my normal driving remotely aggressive. Rarely get to a quarter throttle (my estimate) in 90% of my city driving to begin with. Should also mention shift pts as well: On avg I'm generally shifting from 1-2 almost immediately after getting rolling, 2-3 generally happens around 30 mph mark, and then I flip it into 4 at around 40-45 mph. On on/exit ramps, I generally leave it in 3rd to roll on and accelerate to about 55-60 mph, switching to 4th at that speed and then going up to 5th at around 70 mph, before hitting my usual cruising speed of 75 and putting it into 6th.

That said I've always had a light foot while driving (which is why unless there is ice/snow out I probably won't turn into a meme) & the amount of traffic in my area normally blocks me from driving like a headass 99% of the time. For reference I can usually make a tank of gas last about 1.5-2 weeks under the following conditions (going to Kendo once a week which is my highway drive about 11-15 miles depending on practice location), work 2x week (Ford WHQ is about 11 miles from my apartment one way), and 1x week grocery runs (about a 5-10 mile drive round trip depending on the route I take). Most of the time what eats up my gas tank is going to cars and coffee's where I will see about a 1/4-1/3 of my tank disappear as I'm generally driving like a headass to the event, after the event, and also any time I have to rev the car like a mustang owner should lol.

The manual to auto is an interesting point. I actually did notice that driving the same route in my 2021 GT 6spd I average 1-1.5 better MPG than I do in the auto with the 3.55 gears. I hoped that the reports of the auto getting better MPG returns was going to hold true, but at least in my case it's been the opposite. Another note is that my 1st 800-1000 miles in the auto I was getting 3-4 mpg better than I do after Ford updated programming. My MPG instantly dropped like a rock, but the shifting in the auto was night and day better.

 

[RedTetsu13]

The manual to auto is an interesting point. I actually did notice that driving the same route in my 2021 GT 6spd I average 1-1.5 better MPG than I do in the auto with the 3.55 gears. I hoped that the reports of the auto getting better MPG returns was going to hold true, but at least in my case it's been the opposite. Another note is that my 1st 800-1000 miles in the auto I was getting 3-4 mpg better than I do after Ford updated programming. My MPG instantly dropped like a rock, but the shifting in the auto was night and day better.

Which is interesting because I noticed I began getting about 1 mpg better post my 1000K (break in period).

 

[FreePenguin]

Which is interesting because I noticed I began getting about 1 mpg better post my 1000K (break in period).

gas changes, summer and winter blend. could affect both you guys

 

[RedTetsu13]

gas changes, summer and winter blend. could affect both you guys

So although I do agree with this, I was well past break in miles by the time the blends changed (ie so I saw that mpg increase on the winter blend), and given my current mileage I think I've more or less normalized that impact in my averages. Not sure on Tucker though (granted I think his zip is like right outside Cincinnati so maybe he doesn't have to worry about that) (memory is too a$$ on many levels to confirm) (and granted I've had the car since Jan of this year and its my first sticky boi ownership experience so I very well could be getting better mpg as I got more used to doing the three pedal dance).

 

[Tucker80]

So although I do agree with this, I was well past break in miles by the time the blends changed (ie so I saw that mpg increase on the winter blend), and given my current mileage I think I've more or less normalized that impact in my averages. Not sure on Tucker though (granted I think his zip is like right outside Cincinnati so maybe he doesn't have to worry about that) (memory is too a$$ on many levels to confirm) (and granted I've had the car since Jan of this year and its my first sticky boi ownership experience so I very well could be getting better mpg as I got more used to doing the three pedal dance).

Mine was on summer gas. Only change was a "module" update that occurred at the dealer while in for completely unrelated warranty work. I had a random misfire that was reported on Ford pass - I had no idea until later. The tech read the code, updated a module, and my shifts improved, but for some reason my mpg crashed. Not complaining at all, because pre-update it shifted like shit. I noticed immediately that something changed for the better when I picked it up. If I recall correctly there were several other 22 owners that had the same update under warranty that I did.

 

[RedTetsu13]

Mine was on summer gas. Only change was a "module" update that occurred at the dealer while in for completely unrelated warranty work. I had a random misfire that was reported on Ford pass - I had no idea until later. The tech read the code, updated a module, and my shifts improved, but for some reason my mpg crashed. Not complaining at all, because pre-update it shifted like shit. I noticed immediately that something changed for the better when I picked it up. If I recall correctly there were several other 22 owners that had the same update under warranty that I did.

Don't worry my eco did the exact same thing until I got the fp tune and then it became acceptableish (still rough cold shifts and hesitation), thereby proving everyone should just get the stick lol (me being ugly and sarcastic here)

 

[KingKona]

So although I do agree with this, I was well past break in miles by the time the blends changed...

There is no way to properly quantify a 1MPG change with either raw division or the car's MPG estimates. There are a dozen other variables that can have a faaar larger impact than 1MPG.

 

[LDHunter]

My 2020GT Premium before it got totaled and now my 2022GTCS both get/got north of 20mpg combined driving mileage ALWAYS and I am a certified/bonafide leadfoot that simply can't keep my foot off the throttle until I hit about 8-10mph above the speed limit.

In the last 1200 miles my GTCS has averaged 21.2mpg on a steady diet of Costco 93 gas and that's a combination of city and highway miles. The couple of times I reset my odometer to check mileage on the interstate at 83mph I got right around 27mpg for at least a couple hundred miles.

I don't understand how a stock GT could get much worse mpg on 93 octane unless it has some kind of crazy tune or is run in sport mode or something other than the standard everyday mode (can't remember the name of it now).

I'd look carefully at what could be wrong because if you rode with me for a couple of days you'd laugh at my crazy scrambling around like I'm late for work all the time and every stop light is a chance to show off my hole shot. I also pass everything in sight all the time with my foot to the floor or nearly so.

 

[ShadesOfBloo]

How in the world are you actually getting anywhere near that? I run 93 in my 22 GT 10spd 3.55 and with almost perfect 50/50 city vs. highway I get a hand calculated 16.3 - 16.7mpg when driving only somewhat aggressively. Getting on it and it's not even close to the 16.5 avg.

I have a GT-PP1 with the MT82, and if I'm just puttering to work I shift at the speeds the Ford manual said. The engine doesn't get over 2000rpm very often, and I got 19mpg in the city.

My 19mpg is going down because the Coyote isn't very responsive below 2000rpm and I'm shifting down to accelerate more often.

In 6th gear my car gets to 2000rpm somewhere around 70mph. Going 75 in a 70 zone, 27 mpg sounds about right to me.

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