Dismal Fuel Economy

[Bill-in-CenTex]

I hate to even post this; I’m otherwise happy with my 2022 F150 Tremor.

After (only) 2 fuel-ups, my fuel economy numbers are extremely disappointing -12.4 City / 16.5 Hwy.

I contacted the dealer (Mac Haik, Georgetown, TX) and was told unless a check engine light is on, there’s nothing a diagnostic can find. Really?!

Anyone else getting these low economy numbers?

-Bill

 

[Cheif2Slo]

Ha! I’ve bought a truck or two from them when I lived in Texas! God do I miss Texas. But anyway , it should get better as the engine breaks in. I’m averaging 15.1 right now with 1500 miles on the odo. It’s winter though and I’ve got a heavy foot! I also appreciate more boost than eco!

 

[High_Country]

I hate to even post this; I’m otherwise happy with my 2022 F150 Tremor.

After (only) 2 fuel-ups, my fuel economy numbers are extremely disappointing -12.4 City / 16.5 Hwy.

I contacted the dealer (Mac Haik, Georgetown, TX) and was told unless a check engine light is on, there’s nothing a diagnostic can find. Really?!

Anyone else getting these low economy numbers?

-Bill

How many miles on the truck? (It'll get better after break-in...post 1,000 miles or so)
What is your average highway speed? This has BIG effect on these vehicles. 65mph is WAY different than 75-80.
Also, are you going off the computer on the dash or actually calculating it at fillup? A new truck and it's new computer might be taking some time to learn things and get calibrated.

I wouldn't guess anything is wrong yet. Don't worry too much. If you want to get scientific, do a controlled loop and post back.

 

[Mama Tried]

Hell- I'm at 11.2 MPG. But I've only got 130 miles on it ... and I live on top of a mountain, work from home and rarely hit the highway... not worried. It will get better... marginally. My 2013 Lariat was at 14.5 MPG (92k on the odo.) because of the above excuses too.

 

[Mmac]

Yikes, that is low. My 2012 3.5 Ecoboost FX4 started out averaging 16.5 mpg's when new and eventually went down to averaging 15.1 mpg's over time. From my experience, I don't think the mpg's for the 3.5 Ecoboost increase after break in.

 

[zarc14]

At almost 4K, 17.8 for reference

 

[Yeti]

Just over 2K Averaging 16.4 since picking it up. This is mostly interstate driving ~ 80MPH with moderate hills.

 

[FaKtor34]

17.0 combined hwy/city in the mountains of TN with 2800 miles, I started off at about 12mpg for the first 1000 miles, it should get better. Also not sure what fuel you run, but the higher the octane the better the mpg. That's proven true for every vehicle I have owned.

 

[Bill-in-CenTex]

Thanks, all!
I feel better.

Overall, I LOVE this truck! It’s truly badass and as soon as I laid eyes on it, I was hooked!

I’ll be 58 next month… I’m not getting any younger and with a supportive wife, I took the leap and don’t regret it.

 

[FaKtor34]

Also your tire pressure will help with the mpg, try running between 38-40 psi, I know it states 35 psi, but unless running offroad you will be better off at the 38-40, if you tow then maybe 42 psi.

 

[Djdj1000]

Running in Slippery mode for winter conditions, I'm seeing about 16 MPG +/- with highway driving at 55-65MPH. When in Eco mode, I'm getting around 17.5MPG with similar driving. All miles driven at altitude and 2k total miles on the truck.

There are definitely some trade-offs for the Tremor package with gas mileage being the biggest. My 2017 F150 Lariat with a 3.5 Eco was averaging around 21MPG for the same driving.

 

[Jstonk]

My 2018 was the same way, after a few k/miles it progressively got better.

 

[CarolinaTremor]

I’m getting 17ish on mixed highway and country roads…. My lariat with same engine, skinny factory tires 19ish for comparison…. I’m guessing the lack of air dam, bigger tires than lariat, 2.0 leveling kit, and basic less aerodynamics on tremor…..I did just add a tonneau cover last Friday and am wondering if that may increase mpg….. any thoughts on that??? I’m 58 also and I’m loving the overall tremor truck vs grandpa lariat with chrome

 

[Cranbery]

I’m getting 17ish on mixed highway and country roads…. My lariat with same engine, skinny factory tires 19ish for comparison…. I’m guessing the lack of air dam, bigger tires than lariat, 2.0 leveling kit, and basic less aerodynamics on tremor…..I did just add a tonneau cover last Friday and am wondering if that may increase mpg….. any thoughts on that??? I’m 58 also and I’m loving the overall tremor truck vs grandpa lariat with chrome

In my experience the cover does increase MPG, it reduces drag by a lot.

 

[CarolinaTremor]

In my experience the cover does increase MPG, it reduces drag by a lot.

I heard it could increase mpg by decreasing drag some…. I’ve never used anything besides 87 octane…… I guess I’m too cheap to pay 35-80 cents more per gallon…… not sure the return would justify premium fuel anyway????

 

[TxTremor]

3860 miles since Dec 1st. My first tank was about 15. I saw a noticeable increase after the first 1000 miles. My last tank was 18.1 with a lot of hwy. Most of the time I'm doing about 17-18.

 

[Cheif2Slo]

I’ve not noticed an increase in mpg with my Tonneau. Last truck I had it on was a ‘16 platinum Evo boost with 35’s and 4.10 gears and I averaged 16.4 with 105,000 miles on the odo. This one it went on right away so I’ve got no baseline but I feel like if it’s helping it’s very minimal. Good thing I bought it for the smilage not the mileage!

 

[808 Tremor]

Run 92 octane. Eco mode. Mostly City driving for me here in Honolulu. Overall it's at 14.9 MPG. 3500 miles. I live on a hill and about 2 miles up. Funny thing happens with the overall MPG. It was at 13.8 for like the first 1500 miles. It would got back in forth from 13.8 to 13.9. I took a longer drive more HWY and jumped to 14.4 and same thing. Back and forth 14.4 to 14.5. Made another recent longer trip and jumped to 14.8. Goes to 14.9 at times but staying there. Just those 2 longer HWY trips moved the overall MPG up. Doesn't seem to make sense to me. I always reset the Trip A on fill ups. I noticed that is mostly around 16.5 all the time. I will probably just fill up and just do the math on miles vs gallons.

 

[High_Country]

I whipped up a quick spreadsheet to help us understand the real cost sensitivity related to gas mileage. This table calculates fuel cost OVER 100,000 miles and considers different grades of fuel. Here in OK, 87-89-91 is common at the pump. I always try to buy 100% gasoline - ethanol blends will change your mileage too. Anyways....

So, it's not quite as dramatic a difference as you might expect. For instance, let's say you run regular fuel (87) and are really disappointed you're only getting 16mpg...you think you're losing gobs and gobs of money...and if you got 18mpg you'd be happy. The difference in 16mpg and 18mpg OVER 100,000 miles is only about $2,000.

Another way to use this chart - if you get 16mpg on regular (87) but you get 17 on premium (91), again over 100,000 miles:
Running regular @ 16mpg = $17,500 in fuel costs
Running premium @ 17mpg = $18,235 in fuel costs (or MORE expensive)

And one last way, let's say some mod you're planning on making will rob you of 1 mpg. Easy to see the effect. Likewise, let's say you want a $1,000 tonneau cover because it increases your MPG by one....worth it?

Yes - fuel prices fluctuate and are likely different where you live. The higher the fuel costs, the greater the deltas between the numbers.
Just throwing it out there for perspective. Some folks will get way too focused and spend way too much money chasing MPG's. Be informed - do the math for your self and your own situation.

 

[Mama Tried]

I whipped up a quick spreadsheet to help us understand the real cost sensitivity related to gas mileage. This table calculates fuel cost OVER 100,000 miles and considers different grades of fuel. Here in OK, 87-89-91 is common at the pump. I always try to buy 100% gasoline - ethanol blends will change your mileage too. Anyways....
View attachment 1537

So, it's not quite as dramatic a difference as you might expect. For instance, let's say you run regular fuel (87) and are really disappointed you're only getting 16mpg...you think you're losing gobs and gobs of money...and if you got 18mpg you'd be happy. The difference in 16mpg and 18mpg OVER 100,000 miles is only about $2,000.

Another way to use this chart - if you get 16mpg on regular (87) but you get 17 on premium (91), again over 100,000 miles:
Running regular @ 16mpg = $17,500 in fuel costs
Running premium @ 17mpg = $18,235 in fuel costs (or MORE expensive)

And one last way, let's say some mod you're planning on making will rob you of 1 mpg. Easy to see the effect. Likewise, let's say you want a $1,000 tonneau cover because it increases your MPG by one....worth it?

Yes - fuel prices fluctuate and are likely different where you live. The higher the fuel costs, the greater the deltas between the numbers.
Just throwing it out there for perspective. Some folks will get way too focused and spend way too much money chasing MPG's. Be informed - do the math for your self and your own situation.

Nicely done. Regardless of fuel prices- the delta should be consistent…