Lifetime Average MPG

[Esquire]

I have absolutely no idea how you guys are getting such stellar MPG's.

I literally have avg's below 14 mpg since I bought it brand new.

My 911 doesn't get near the mpg's some of you guys are getting and it weighs just over 3,000 lbs.

 

[DubDub]

I have absolutely no idea how you guys are getting such stellar MPG's.

I literally have avg's below 14 mpg since I bought it brand new.

My 911 doesn't get near the mpg's some of you guys are getting and it weighs just over 3,000 lbs.

I get almost 23 by driving like there is an egg under the accelerator. I’ve always been that way 99% of the time. I’m not at all an average baseline, and the very few times my wife is driving the real-time mpg is definitely lower than 18-20.

 

[ATbuckhunter]

I was at 21.3 until the deep freeze we had in Late January to early March. Now I'm down to 20.6 at 17,800 miles. Not too bad and should be going higher now that it's getting warmer

 

[ultane]

This is crazy good. Must be in Florida.

.

Cherokee County NC (in the shadows of the Appalachian mountains)… with a lot of round trips to Marietta, GA to watch my grandkids play baseball, soccer, Lacrosse, swim meets, etc. But yea, the hills aren’t good for my tank averages.

 

[ultane]

Need to drive mine more! Bought new with 10mi in Feb, 2025 sitting at 9,700 this am and I’m 17.4. I have a company vehicle that I drive once I make the 2mi drive to work.

2 mile trips are one of the worst things you can do to your new engine. I hope you are doing very frequent (3000 mile) oil changes.

 

[efactor]

I don't pay much attention. When the light comes on, I stop and fill up.

 

[FifthToyota]

Here's some data for you MPG geeks...

After 14 months and 5 days, I'm at 15.8 average lifetime MPG on my 2025 LC 1958 that currently sits at 16,768 miles. Never reset since I bought it new.
Soon after buying, I removed the front air dams, put on larger BFG AT E-Load's, installed a modular roof rack, taken two 500 mile road trips fully loaded with bins on the roof, and a dozen snow trips with skis/snowboards on the roof. None of these modifications or conditions have helped my lifetime MPG.
I vary my drive modes from ECO, normal, and Sport so much that I cannot take it into account for my MPG's, I change it frequently based on driving conditions.

• For the first 12 months:
- I had a heavy right foot.
- One fully loaded 500 mile overnight drive with non-aerodynamic bins on the roof at continuous obnoxiously high speeds.
- 24/7 interior climate control.
- A lot of short city drives.

• For the last 2 months:
- I have lightened my right foot.
- Slowed down my long haul drives, especially when fully loaded.
- Rarely use interior climate control unless it gets hot outside.
- Reduced the number of short city drives.

For those who care, during the last two months of "relaxed driving", my lifetime MPG has already risen 0.2 MPG. I took pictures on 01/19/26 and 03/20/26 showing the difference. I'll report back to this thread after 24 months of lifetime MPG to see if I can continue the MPG improvements.

 

[TrailWhale]

Total average - roughly 17mpg.

I did go on a 2500mi road trip in ideal conditions last summer and averaged 21-22mpg (with a roof box)

My day to day driving is simply not ideal for good fuel economy.

 

[vuginator]

Don’t see that there’s an existing discussion on this. I just hit one year since purchasing my ‘25 base model. No modifications. These are my stats, mostly driving in SC and NC:

Average MPG: 21.6
Mileage: 14,300

How are others doing?

I am doing 650 km on full tank on my LC 250 2.8 diesel which is incredible . average usage 10 liters per 100 km

 

[roadventure]

Don’t see that there’s an existing discussion on this. I just hit one year since purchasing my ‘25 base model. No modifications. These are my stats, mostly driving in SC and NC:

Average MPG: 21.6
Mileage: 14,300

How are others doing?

Average MPG: 20.8
Mileage: 3,686

 

[ultane]

I don't pay much attention. When the light comes on, I stop and fill up.

Welcome to the asylum.

 

[ultane]

Here's some data for you MPG geeks...

After 14 months and 5 days, I'm at 15.8 average lifetime MPG on my 2025 LC 1958 that currently sits at 16,768 miles. Never reset since I bought it new.
Soon after buying, I removed the front air dams, put on larger BFG AT E-Load's, installed a modular roof rack, taken two 500 mile road trips fully loaded with bins on the roof, and a dozen snow trips with skis/snowboards on the roof. None of these modifications or conditions have helped my lifetime MPG.
I vary my drive modes from ECO, normal, and Sport so much that I cannot take it into account for my MPG's, I change it frequently based on driving conditions.

• For the first 12 months:
- I had a heavy right foot.
- One fully loaded 500 mile overnight drive with non-aerodynamic bins on the roof at continuous obnoxiously high speeds.
- 24/7 interior climate control.
- A lot of short city drives.

• For the last 2 months:
- I have lightened my right foot.
- Slowed down my long haul drives, especially when fully loaded.
- Rarely use interior climate control unless it gets hot outside.
- Reduced the number of short city drives.

For those who care, during the last two months of "relaxed driving", my lifetime MPG has already risen 0.2 MPG. I took pictures on 01/19/26 and 03/20/26 showing the difference. I'll report back to this thread after 24 months of lifetime MPG to see if I can continue the MPG improvements.

View attachment 62870View attachment 62871

With that many miles on the odometer, it takes a long distance of getting good gas milage to bump up the lifetime average..

 

[supernova]

mine has almost 5,400 miles and life time average hovers around 21.5-21.7

 

[Trailman]

Try to figure this one out: I average around 18mpg normally. Highway driving almost never get above 18 mpg with cruise control set between 75-80/ Have a Sherpa Atlas roof rack installed. Took the first camping trip this past weekend with a Skycamp DLX rooftop tent installed on top and the MPG went up to 19.5 mpg on the highway from my normal average of 18. set the cruise at 75. Barely notice the tent on top of the vehicle when installed and it's a perfect combo. Makes me wonder if designing some sort of air dam to direct air flow over the roof rack when nothing is installed would help with aerodynamics on the roof rack. The Skycamp DLX is not exactly aerodynamic but it must be better than the roof rack alone.

 

[DubDub]

Try to figure this one out: I average around 18mpg normally. Highway driving almost never get above 18 mpg with cruise control set between 75-80/ Have a Sherpa Atlas roof rack installed. Took the first camping trip this past weekend with a Skycamp DLX rooftop tent installed on top and the MPG went up to 19.5 mpg on the highway from my normal average of 18. set the cruise at 75. Barely notice the tent on top of the vehicle when installed and it's a perfect combo. Makes me wonder if designing some sort of air dam to direct air flow over the roof rack when nothing is installed would help with aerodynamics on the roof rack. The Skycamp DLX is not exactly aerodynamic but it must be better than the roof rack alone.

Probably unrelated, but as an anecdotal account it relates in terms of nonsensical outcomes.

I was keeping a very detailed log of my mpg w/ contributing factors through my 10k mile oil change. Things like "+300lbs cargo over rear axle," "towing 2.5klb trailer," "5 persons road trip," along with ave speed, conditions... you get it. My reasoning was in large part due to the fact that I absolutely hate that my 265/65-18s are over-reporting my odo/spedometer and was compelled to keep track of actual figures.

What I found was that unloaded w/ a full tank I will average around 21 mpg the way I drive. As I continue to drive, and get lighter, I will start getting down to around 20-20.5mpg. I proved this by doing some 1/2 to empty runs, and some full to 1/2 runs consecutively. So, I loaded my cargo space with about 250lbs of gear I use pretty often doing nose and callback work with my doggos. With that ~250lbs of weight over the axle (and many times an additional 150lb in dogs) I am consistently seeing 22.5-23.5mpg, with the higher mpgs still accounting for the full down to half tank use. As such, I am filling between 1/3 and 1/2 tank whenever possible, and my overall average has improved significantly over the past 7k miles. Tomorrow (hopefully) I will be mounting my ROAM 83L, so I may be messing all of that up.

 

[blairsteve]

I'm at 30K miles, and get 20-21 most tanks. The ISSUE is how often I have to fill up. The teeny tiny tank has me at the gas pump every 4 days. Super frustrating.

 

[ultane]

Probably unrelated, but as an anecdotal account it relates in terms of nonsensical outcomes.

I was keeping a very detailed log of my mpg w/ contributing factors through my 10k mile oil change. Things like "+300lbs cargo over rear axle," "towing 2.5klb trailer," "5 persons road trip," along with ave speed, conditions... you get it. My reasoning was in large part due to the fact that I absolutely hate that my 265/65-18s are over-reporting my odo/spedometer and was compelled to keep track of actual figures.

What I found was that unloaded w/ a full tank I will average around 21 mpg the way I drive. As I continue to drive, and get lighter, I will start getting down to around 20-20.5mpg. I proved this by doing some 1/2 to empty runs, and some full to 1/2 runs consecutively. So, I loaded my cargo space with about 250lbs of gear I use pretty often doing nose and callback work with my doggos. With that ~250lbs of weight over the axle (and many times an additional 150lb in dogs) I am consistently seeing 22.5-23.5mpg, with the higher mpgs still accounting for the full down to half tank use. As such, I am filling between 1/3 and 1/2 tank whenever possible, and my overall average has improved significantly over the past 7k miles. Tomorrow (hopefully) I will be mounting my ROAM 83L, so I may be messing all of that up.

Since our LC’s have a little higher rear end, I wonder if the added weight causes just a little ‘squat’, making the (brick) LC’s slightly more aerodynamic???… If that makes any sense.

 

[DubDub]

Since our LC’s have a little higher rear end, I wonder if the added weight causes just a little ‘squat’, making the (brick) LC’s slightly more aerodynamic???… If that makes any sense.

Your guess is as good as mine on this one. I'm sure there are some physics at play, but the weight distribution logic I am acustomed to is moot when you add a giant battery to the cargo floor. The supporting data is there though, for me at least, and I back the outcome with my wallet at this point haha.

 

[ultane]

12 mpg no matter what I do.

I wonder if your engine is running ’open loop’?

 

[robsurfskate]

I wonder if your engine is running ’open loop’?

That makes sense. It reports 233 miles every time I fill up. The same number 233 every time.