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Gas Milage - computer and sticker wrong

Tom_C

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I just got home from a 100 mile trip, filled up on the way, and got 25.9 highway mileage for the last 75 miles. That's as high as I've gotten, but granted, it was only 75 miles on the highway, and based on the computer that's not been calibrated.
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Grandaccess

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city/hwy/towing or not, over size tires and all I average 20mpg, once a few months ago it dropped to 15 and have no idea why maybe bad gas? or the summer winter gas change over?
I drive it like I stole it, it a fun truck to drive and I take advantage of that LOL for how I treat it I am more than happy with 20!
 

ppfd

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21 Tremor, 68k on it.

This tank was 25 mpg. Winter is always a little low, 21-23 mpg. Must be switching blends of fuel as its warming up.

Speed limit or 5 over works wonders.
 

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That would add weight and also change the weight distribution of the truck by adding the weight to the rear, thus "raising the front" thus changing the airflow dynamics of the truck...more than likely reducing mpg's.....
That's why Soupie has that front chain - damper mass offsetting! =p

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TJC

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What you have done is a cumulative average over the life of the truck.
To get a correct average you must do/drive the exact same for a number of fill-ups.....
The same gas, the exact amount of fuel pumped, the same exact amount of fuel used....
Same miles driven over the same roads, same temps, same exact speed, same time of day, same traffic, same number of stop/go cycles, same load, tire pressure...
Everything must be the same.....
Almost impossible to do
Simple math....to get an accurate "average" all values must be the same....
Even two trucks built right next to the other with the exact same equipment will have different "values"
Towing will severely impact the avg MPG. Consider your school test exams. One 50% test result result severely impacts your final grade point avg, even if you ace several tests.

If I baby my Ranger I have seen 28.6 mpg, but I was concentrating on maximizing gas mileage. If I drive it normally, I get a tad under 25mpg. If I drive like everyone around me I drop to 21-22mpg. This is with a 2020 4x4 SCab Ranger.
 

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I'm old (68) and drive responsibly and get right around 19.5 to 20 mpg in town and 22-23.5 on the highway staying in the right lane at 68-70 mph. My 2017 Tacoma V6 and 2019 Frontier V6 got about the same in town and on the highway. It's a truck, at least you're not getting 12.5 like my 1976 Chevy C10.
My 1977 350 V8 Chevy pickup with "fulltime" 4x4 got 10-12 mpg no matter the speed, go up hill or down hill didn't matter, and it had dual saddle tanks - 44 gallons to fill it up. I had to take out a loan to fill the thing up. Went from Colorado Springs Co, to Charleston SC and back. Gas alone was $400 back then!

I had it paid off, but could not afford to drive it on my military pay. Sold it and replaced it with a 71 Toyota FJ40. It was gas hog too, but much more fun.
 

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Wow, these things are affected by either the summer gas or the temperature outside alot!

The drive is pretty much identical since March, the only difference is the change over to summer gas in April, and the warmer weather outside.
 

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Wow, these things are affected by either the summer gas or the temperature outside alot!

The drive is pretty much identical since March, the only difference is the change over to summer gas in April, and the warmer weather outside.
You have the weather affecting you more than anything. That extra snow and stuff on the road makes big impact. When I was in Arizona it was common to have better MPG in the winter due to the cooler temps and no AC usage. The Engines loved the cooler weather down there.
 

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You have the weather affecting you more than anything. That extra snow and stuff on the road makes big impact. When I was in Arizona it was common to have better MPG in the winter due to the cooler temps and no AC usage. The Engines loved the cooler weather down there.
The cold affects gas milage dramatically. I had a trip that got 3 less miles per gallon in the winter VS summer and on the winter like trip I stl had summer gas. I can see the difference too by observing the trucks milage graphic that shows gas use at any given moment. In the winter the same hill and gas show a lot lower milage than in the summer.
 

Frenchy

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The cold affects gas milage dramatically. I had a trip that got 3 less miles per gallon in the winter VS summer and on the winter like trip I stl had summer gas. I can see the difference too by observing the trucks milage graphic that shows gas use at any given moment. In the winter the same hill and gas show a lot lower milage than in the summer.
Perhaps your truck has a Major problem? In cold weather vs hot weather an internal combustion engine will have more available power in cold weather vs hot weather. This is thanks to to much cooler and denser air.

With that said if road conditions have changed a bit like having snow or ice on the pavement, the absolutely the MPG can go down. Then again you also need to make sure the tire pressure is correct. If tire pressure gets low you can easily use more fuel
 

hughesjv

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Perhaps your truck has a Major problem? In cold weather vs hot weather an internal combustion engine will have more available power in cold weather vs hot weather. This is thanks to to much cooler and denser air.

With that said if road conditions have changed a bit like having snow or ice on the pavement, the absolutely the MPG can go down. Then again you also need to make sure the tire pressure is correct. If tire pressure gets low you can easily use more fuel
I chalked it up to thicker grease and oils. My truck passes all its checkups but does use more gas when it is cold out.
 
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Dgc333

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Perhaps your truck has a Major problem? In cold weather vs hot weather an internal combustion engine will have more available power in cold weather vs hot weather. This is thanks to to much cooler and denser air.

With that said if road conditions have changed a bit like having snow or ice on the pavement, the absolutely the MPG can go down. Then again you also need to make sure the tire pressure is correct. If tire pressure gets low you can easily use more fuel
In the colder winter environment all the fluids in the engine, tranny differentials will be thicker which results in reduced gas mileage. Wheel bearing grease is thicker and reduced gas mileage. Tires are stiffer which increases rolling resistance and reduced gas mileage. Engine runs longer in an enriched state that reduced gas mileage. Winter blend gas has higher levels of high volatility compounds to assist in starting the engine but these compounds have less BTUs per unit volume reducing the BTU energy in a gallon of gas resulting in reduced gas mileage.

In my 55+ years of driving in New England every vehicle I have ever owned has gotten 3 or 4 mpg less than in the summer. And if you use remote start and/or let it idle for extended periods of time you will see a bigger hit to your mileage.
 

Frenchy

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In the colder winter environment all the fluids in the engine, tranny differentials will be thicker which results in reduced gas mileage. Wheel bearing grease is thicker and reduced gas mileage. Tires are stiffer which increases rolling resistance and reduced gas mileage. Engine runs longer in an enriched state that reduced gas mileage. Winter blend gas has higher levels of high volatility compounds to assist in starting the engine but these compounds have less BTUs per unit volume reducing the BTU energy in a gallon of gas resulting in reduced gas mileage.

In my 55+ years of driving in New England every vehicle I have ever owned has gotten 3 or 4 mpg less than in the summer. And if you use remote start and/or let it idle for extended periods of time you will see a bigger hit to your mileage.
Remote start probably has to be the biggest killer for anyone. I know when I had the Ranger I used the hell out of it.
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