LX 700h Real World MPG?

[j1980mac]

What's everyone's real world MPG?

I have an LX 700h Luxury trim, but I changed out the luxury wheels and tires for the 18" Overtrail wheels and tires.

Running the Toyo all terrains and am getting 17.5 MPG so far, 1200 miles of driving. My driving is mostly city, with a few residential roads in between. Almost no highway driving.

Love to hear what everyone else is experiencing.

 

[Rez90]

we're about 500 miles into our life w the vehicle and let me tell you my wife is THRILLED w the 260 miles on a tank

(the above is sarcasm).

So far it's my only complaint with an otherwise perfect vehicle.

 

[j1980mac]

we're about 500 miles into our life w the vehicle and let me tell you my wife is THRILLED w the 260 miles on a tank

(the above is sarcasm).

So far it's my only complaint with an otherwise perfect vehicle.

Yeah, exactly. By the way, I have a solution for this.

Here’s what I’ll be doing:

Here’s the 29 gallon long range tank:
https://fkoffroad.com/products/longrange-main-fuel-tank-fit-for-lexus-lx700h?variant=51911369031998

Here is the 14 gallon auxiliary tank that automatically siphons:
https://fkoffroad.com/products/fk-long-ranger-fuel-tank-lexus-lx700h?variant=51705972064574

I’m leaning more towards the direct replacement 29 gallon.

 

[Rez90]

Yeah, exactly. By the way, I have a solution for this.

Here’s what I’ll be doing:

Here’s the 29 gallon long range tank:
https://fkoffroad.com/products/longrange-main-fuel-tank-fit-for-lexus-lx700h?variant=51911369031998

Here is the 14 gallon auxiliary tank that automatically siphons:
https://fkoffroad.com/products/fk-long-ranger-fuel-tank-lexus-lx700h?variant=51705972064574

I’m leaning more towards the direct replacement 29 gallon.

I've been reading about that for a week now and i'm all over the idea.

but my worry is Lexus trying to Eff me regarding warranty if an issue arises down the road and there is a different gas tank mounted to the car.

Thoughts?

 

[j1980mac]

I've been reading about that for a week now and i'm all over the idea.

but my worry is Lexus trying to Eff me regarding warranty if an issue arises down the road and there is a different gas tank mounted to the car.

Thoughts?

They can pretty much only ding your fuel system.

Google this: Magnuson-Moss Warranty Act of 1975

The option that carries the least risk when it comes to warranty is the simplest: 29 gallon replacement tank.

The more and more I think about these options, the more and more I want the auxiliary tank.

 

[ShottsCruisers]

What's everyone's real world MPG?

I have an LX 700h Luxury trim, but I changed out the luxury wheels and tires for the 18" Overtrail wheels and tires.

Running the Toyo all terrains and am getting 17.5 MPG so far, 1200 miles of driving. My driving is mostly city, with a few residential roads in between. Almost no highway driving.

Love to hear what everyone else is experiencing.

17-18.5 in-town. 19-20.5 on highway. 11k miles Going to 34" tires, and 10-ply...about the same observed so far.

 

[pdx19751]

Yeah, exactly. By the way, I have a solution for this.

Here’s what I’ll be doing:

Here’s the 29 gallon long range tank:
https://fkoffroad.com/products/longrange-main-fuel-tank-fit-for-lexus-lx700h?variant=51911369031998

Here is the 14 gallon auxiliary tank that automatically siphons:
https://fkoffroad.com/products/fk-long-ranger-fuel-tank-lexus-lx700h?variant=51705972064574

I’m leaning more towards the direct replacement 29 gallon.

Does the 29 gallon tank require permanent removal of the spare tire?

 

[garyculb18]

Average of 15.5 with an 2025 F Sport in S+. If I put it Econ or Comfort it turns into the Uncle Buck LX. Bounces and woobles when you hit a bump in the road. Not a good thing in turns. Issue goes away in S+.

Best,
Doc

 

[Rez90]

Filled up tonight. Had 62 miles left on the display. The vehicle took 11.7 gallons which at 16mpg means I likely had 99 miles left on the tank.

Gonna have to run this thing down to 0 and see how much fuel is actually left.

 

[ShottsCruisers]

Average of 15.5 with an 2025 F Sport in S+. If I put it Econ or Comfort it turns into the Uncle Buck LX. Bounces and woobles when you hit a bump in the road. Not a good thing in turns. Issue goes away in S+.

Best,
Doc

Hmmm....I have a new thought about your bounce

Filled up tonight. Had 62 miles left on the display. The vehicle took 11.7 gallons which at 16mpg means I likely had 99 miles left on the tank.

Gonna have to run this thing down to 0 and see how much fuel is actually left.

2.xx gallons.

 

[Rez90]

Spoke to my dealer today and they said other than the fuel pump itself (as it's going into a different tank) the swap would not affect my warranty.

This is gonna happen. ;-)

 

[garyculb18]

Rez90,

I you replace the gas tank PLEASE keep us updated (i.e. time ti install, cost of install, result, etc.).

Yes, I am very interested in doing the same thing as long as the SUV's warrenty is not impaired.

Best,

Doc

 

[j1980mac]

Update: I'm now around 2,000 miles in, and 17.8 miles per gallon average.

 

[j1980mac]

Does the 29 gallon tank require permanent removal of the spare tire?

I don't believe so, but I would check with FK Offroad.

 

[j1980mac]

Filled up tonight. Had 62 miles left on the display. The vehicle took 11.7 gallons which at 16mpg means I likely had 99 miles left on the tank.

Gonna have to run this thing down to 0 and see how much fuel is actually left.

I can tell you that at 16 MTE, I still had 1.9 gallons in the tank!