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Old 01-01-2020, 10:13 AM #61
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"city to be around 17MPG average and Highway drop to lower 14MPG's. Also if I drive in the 75 to 80 MPH area it drops to high 13's."

Beats me. Are you stuck in 4th gear?
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Old 01-01-2020, 01:36 PM #62
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Quote:
Originally Posted by TeaMan View Post
This is a great thread. A lot of great information.

I have a 2020 Offroad Premium and am having what I'd call extreme poor mileage. I do have some modifications that I suspect are contributing, but they should not at the level that I'm seeing. I have a 2" leveling kit in the front and 285/70R17's KO2's. I also have a bug deflector. I do need to install a 1" body lift to stop my tires from rubbing on a sharp turn in reverse. This won't help, but do want to keep the look and like the performance of the tires. I have less than 1000 miles on it, it's still breaking in also, but still seems extreme.

My mileage is better in town/city than on the highway which is a bit confusing. I actually see the mileage in the city to be around 17MPG average and Highway drop to lower 14MPG's. Also if I drive in the 75 to 80 MPH area it drops to high 13's.

So far, I like the vehicle. It's my first, I traded a Tacoma for it. Not impressed with the power, but it does get me where I need to go.

Wondering if anyone else is seeing anything like this with the 2020.

Thanks.
Almost every “I have a problem” thread on this forum begins with some reference to that person having a lift. Between a levelling kit, a body lift, and the drag of the off-road tires (which are also bigger than OEM spec) would probably explain why your mileage is worse on the highway. Your aerodynamics are definitely a lot different. At 14MPG.... my fuel economy would only be about 20% better than you on a 75-80mph highway run. I would probably get about 17.5. Anything better is because of favourable wind conditions and/or flat road. I do have a bug deflector and mud guards.
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Old 01-01-2020, 05:14 PM #63
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Old 01-01-2020, 05:33 PM #64
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So let me guess, you’re routinely getting 22mpg on the highway @70-80 and 18 in heavy stop and go city driving. Sounds about right.
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Old 01-01-2020, 05:59 PM #65
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JayceeP said it best, “ Almost every “I have a problem” thread on this forum begins with some reference to that person having a lift.”
The largest letters on the MSRP window sticker are the 18mpg average you can expect for a OEM stock vehicle driven in a reasonable manner. The aerodynamics of the 4RUNNER are pretty much the same as a brick on wheels. Putting it up higher off the ground, adding big ass cool looking wheels and tires has an additional aftermarket cost, decreased MPG. There’s quite a few jacked up pick-up’s, Jeeps and 4Runner where I’m at here in Arizona, you rarely see em ease off the line. Mostly they’re haulin ass, after all who wants to drive a cool truck like a grandpa.
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Old 01-01-2020, 10:45 PM #66
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Quote:
Originally Posted by Generalisimo View Post
So let me guess, you’re routinely getting 22mpg on the highway @70-80 and 18 in heavy stop and go city driving. Sounds about right.
Depends on how long it's been since they've eaten. When they're fasting, I can squeeze out 23. Hand calculated of course, because the computer shows at least 48.
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Old 01-01-2020, 10:50 PM #67
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I have a 2013 TE with a 3" Icon lift, rock sliders, Destination MTs on knockoff FJ steelie wheels and can't get better than 14.7 MPG combined.

Can someone help me?
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Old 01-02-2020, 10:34 AM #68
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I just completed a 5300km (3300mile) trip from Toronto to mid-Texas and back with my wife, daughter, two dogs and luggage. Most of the drive consisted of 70-80mph speeds while using cruise control once up to speed for the majority of the time. According to the dash, I averaged 15.5mpg there and back which is a little lower than I had hoped for, but was to be expected. The only part I found slightly annoying was that the tranny liked to hold onto 4th gear longer than needed at times, but I overcame that by canceling/resume cruise control.
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Old 01-02-2020, 03:50 PM #69
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Quote:
Originally Posted by LandCruiser View Post
I have a 2013 TE with a 3" Icon lift, rock sliders, Destination MTs on knockoff FJ steelie wheels and can't get better than 14.7 MPG combined.

Can someone help me?
I can: Buy a Prius.
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Old 01-03-2020, 12:13 AM #70
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I just completed a 2000 mile round trip from San Diego to Idaho, averaged 13 MPG with 295's and 4.88 gears. Seems the gears didn't do much for MPG as that's about what I got prior to installing them.

One thing to consider for anyone running oversize tires is that the vehicle is actually covering slightly for miles that the ODO and mileage computer is picking up. My speedo is off (slow) by 4 MPH so I was probably getting closer to ~13.5 MPG. Still pretty awful, but that's the way it goes with these vehicles. I did not buy it for its efficiency.







Quote:
Originally Posted by TeaMan View Post
Anyone done any of these ideas for fuel economy?

1. Exhaust changes such as Cat Black to gain flow, or reduce resistance?

2. Intake air box modifications such as K&N air box?

3. Electric Fan?

4. Different gearing?

I don't know what the newer fans do, but I remember in my early days, the fan consumed a couple HP.

Just curious what others may have tried. I've seen a quite a few posts on what takes away from the mileage, but not a lot on what may add to it.

Thanks
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Old 01-03-2020, 08:31 AM #71
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Quote:
Originally Posted by Hamburgerpimp View Post
I just completed a 2000 mile round trip from San Diego to Idaho, averaged 13 MPG with 295's and 4.88 gears. Seems the gears didn't do much for MPG as that's about what I got prior to installing them.

One thing to consider for anyone running oversize tires is that the vehicle is actually covering slightly for miles that the ODO and mileage computer is picking up. My speedo is off (slow) by 4 MPH so I was probably getting closer to ~13.5 MPG. Still pretty awful, but that's the way it goes with these vehicles. I did not buy it for its efficiency.
You may be pleasantly surprised when you do the actual math. Without knowing what tires were on the vehicle, and the actual size of your current ones, your miles traveled may well be around a 10% difference.

Add in gears and it will be a bit tougher to figure your actual miles traveled vs the odometer.
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