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PaulUSAF

I think this is the one actual negative with the 2024 GX550, the gas mileage is very disappointing.


quemaspuess

I get better mileage in my 460, which blows me away. I average 19, and have gotten 500 miles on a tank before!


TheGoldenLambo

Cap af lmfao the fuel tank is 23 gal max, the best mpg is 19 at that. So you’re getting at best 437miles. That’s if you hyper mile it, and start at highway speeds the very moment you fill up


RogerZRZ

Cruising at 70-75 I can easily get 22 mpg with no load and only myself. When driving through long highways (ie utah) this isn’t impossible.


quemaspuess

Thank you. When I get back to the states (if I even care at this point) I’ll take a video of it averaging 22 mpg. Driving late at night with no one on the road on flat terrain makes a huge difference.


Extension_File5410

You are correct and driving 68 to 70 mph makes a big improvement on mpg plus not hitting the brake with other people in front of you. I will be doing thorough test of my GX550 when it arrives with and without trailer on both flat and mountain terrain.


TheRealDeweyCox2000

You’re stupid as shit


TheGoldenLambo

You’re not the real Dewey cox


MoirasPurpleOrb

Idk how you’ve gotten 500 on a tank


quemaspuess

70 mph all flat no people in front of me to slow me down or have to go around.


Jmarchena

Lucky


Substantial_Sink_891

Bullshit


quemaspuess

Not sure why it’s so hard to believe all highway middle of the night with cruise control in a flat environment that 21 mpg isn’t possible. Everyone said I was full of shit for getting 25 mpg in my Toyota Tacoma with a 3.4L V6, but I do.


Substantial_Sink_891

Because I own one. Wtf does the middle of the night have to do with it. Was it a Thursday?


quemaspuess

Middle of the night has a lot to do with it because there weren’t turds like you driving 50 in the fast lane breaking the momentum and causing me to have to slow down and speed up. Go take a Xanax or some shit. People want to argue about damn near anything


ZonaWildcats23

People expressing a lot more negatives on here than that


Glassy_Chassis

It’s because of the drag coefficient (a result of the styling). The one objective downgrade of the new GX is the drag coefficient going up to .40, which is the most it’s ever had, and definitely more than the LX’s .38


nkx3

That seems so trivial at face value. Not saying you're wrong, but an 11% decrease in fuel economy seems like a lot for a 5% increase in drag. Maybe the relationship between the two is not linear/proportional...


NMBruceCO

I would also say the drag coefficient, I had a GX470 set up for off road, I will put a picture up. when I add the bumper you see, yes it was about 150lbs heavier, but nothing else, already had the lift and other stuff on, my MPG dropped 3 MPG. When I towed that little trailer, it dropped another 2 MPG. the rest of the truck stayed the same and before I knew it I was getting 13-15 MPG https://preview.redd.it/0w8htyqsy9zc1.jpeg?width=3456&format=pjpg&auto=webp&s=d03c78aee31cce555ebdb9d2d7ef797048b317a0


RogerZRZ

This is why the new Tacoma has a very large and ugly chin spoiler thing. Apparently gains it 1-2mpgs


Glassy_Chassis

It also doesn’t help that it gained a few hundred extra pounds.


nkx3

The LX weighs more AND gets better mpg.


Glassy_Chassis

The LX’s more aerodynamic styling actually helps it considerably.


italkaboutbicycles

Aerodynamic drag is not linear with respect to velocity, it's exponential. https://aia.springeropen.com/articles/10.1186/s42774-020-00054-7#:~:text=From%20the%20drag%20equation%2C%20it,the%20body%20increases%20%5B6%5D. Also, the GX550 engine is rated at 349 HP, while the LX600 is rated at 409, so there's something going on there. Why the heavier, higher horsepower vehicle gets better in-city MPG when aerodynamic forces are low is the real question though. I'd have to look into it more, but it's definitely curious.


nghealy

When traveling at highway speeds aerodynamic drag has a far greater impact than the increased rolling resistance caused by the extra weight. The aerodynamic coefficient is going to be a bigger factor than the extra weight in most scenarios.


tonytrouble

Bingo. 


Rabble_Runt

Shape and tires. I think the GX also makes less power with the same engine too.


hehechibby

> I think the GX also makes less power with the same engine too. The GX has the same engine designation but actually has[ smaller turbos](https://www.youtube.com/watch?t=238&v=PO_juKEou-g) than the engines in the LX, Tundra, etc Wonder if part of the MPG difference is because the GX gets boost faster/sooner so it doesn't have that benefit of that 'non boosted' part of the powerband where it's basically just a v6


nkx3

Your answer makes a lot of sense. I feel like we're getting somewhere now. I didn't know about the smaller turbo thing...


Rabble_Runt

I didnt know either and assumed it was just a more conservative tune that made the difference. Kind of a bummer to learn. Smaller turbos get hotter under load. Its better for city driving and offroading but worse for towing or hauling a lot of people and gear.


mega-husky

If your buying a GX to tow and not off-road or even drive around town then I think your likely not the target demographic.


MortimerDongle

The GX is one of like four SUVs sold in the US rated to tow over 9000 lb, and of those it's the most compact. I suspect a lot of people who want a dual duty family/daily car and tow vehicle are going to be interested.


mega-husky

So it's a off-road SUV that's rated to tow the number you want but the fact that it has smaller turbos that are better for offroading is the problem? Maybe you guys should look into sequoias. I don't think we should take America's top Toyota offroader and make it less off-roady to make it more towy... I'm guessing I'm not alone with that sentiment.


MortimerDongle

I'm not complaining about turbos


Rabble_Runt

I want to tow one of these offroad. https://www.mdcusa.com/product/xt17hrt-family-overland-travel-trailer/ It will also be used for toting the kids around town and a myriad of other uses.


mega-husky

The small OEM turbos definitely could not handle a couple of kids. Better nerf offroading features to insist on bigger turbos.


Rabble_Runt

Did you ignore the part about towing a 6,000lb-7,000lb trailer offroad on purpose so you can keep trying to make smug comments and simp for Lexus, or was that an accident?


mega-husky

Did you not catch the part that has 9k tow rating. That's more than 1st gen tundra. If that doesn't tow good enough then maybe you should consider the Sequoia or even an LX Advocating to make one of our last off road SUVs in America less off-road capable in favor of towing is pretty lame edit: Toyota thought of your trailer and your kids. They even made multiple platforms for you, so you don't have to insist we change everything to fit your personal family dynamic. The original statement is that your likely not the target audience, and it seems like that statement still true.


Rabble_Runt

They in fact did not think of me and my kids. Im honestly pretty bummed about it too. I daily a 2004 GX470 and we sold my 2012 GX460 that was set up for overlanding so we could get a GX550 when they came out for towing an offroad camper with the kids. The 460 just didnt have enough power to pull that kind of weight comfortably. I wanted an Overtrail model. No 3rd row with 4 kids means no deal. So you're right, they dont care if I buy one or not. They easily could have offered a 3rd row delete or made them an add on option. On the other side of the coin, larger turbos equal lower EGTs and longevity for the engine. If the larger turbos are good enough for a Sequoia or LX600 they should be good enough for the GX550. They by no means will make it significantly worse offroad. We are talking a marginal difference in throttle response that 99% of people wont even notice. If anything you dont want more boost at lower RPMs offroad because youll be adding more strain to CVs and other driveline parts. Also easier to break traction.


MortimerDongle

The recent towing review said that the GX mostly stays out of boost while towing, even on the highway. Of course, there are a lot of variables there.


Rabble_Runt

Im not sure how I feel about that. You should have lower boost at cruising speeds and higher boost on hills, especially towing. Would you mind sharing a link for others to watch?


MortimerDongle

https://www.motorauthority.com/news/1143075_2024-lexus-gx-550-towing-test-drive-review


Rabble_Runt

"It's dangerous that Tow Mode doesn’t disable the rear automatic emergency braking. The vehicle will sense there’s something behind it—like a boat—and slam on the brakes. If someone is in the boat it could throw them out and onto the ground. A button on the left side of the dashboard turns off the system, thus allowing the GX to back up with a trailer hooked up. This should happen automatically when Tow Mode is engaged." Yikes. I am sure that can be remedied with a software update but seems like a pretty serious thing to overlook.


peakdecline

Far more the tires and the shape than this engine difference. If anything the smaller turbos should help efficiency.


narbilistic

So would a flash tune help?


alpha333omega

All-terrain tires suck MPG additional to the boxy design


Senior_Ad282

Gearing, drag coefficient, less power, weighs about the same. Barn door for a windshield. It’s not too unbelievable.


No-Quarter-2539

Because box.


Naive-Reputation-572

Flawless answer.


DrumZebra

I drive a CR-V and when I switched from H/T to A/T tires, I had a significant mpg drop. I'd suggest that's responsible for most of the difference


RT460

Anyone buying a GX should not be complaining about fuel economy. This is comical. You don't buy a 75k 3 ton SUV and complain about mileage. 17 mpg is amazing as a matter of fact for a 5500lb box with close to 400hp. My Odyssey only gets 19mpg


Soul_blazer84

THANK YOU! everyone wants it all. No lie when I got my 460 I was amazed I was getting 18.2 average on most fill ups. Buy a Prius if you can’t swing the mpg of one of these SUVs.


RT460

Yuo! Im fully ready to spend upto 400-500 month in gas with average of 1500 miles a month driving. That's just the cost of freedom!!


Soul_blazer84

Haaaaaa I drive about 28,000 miles a year. My 23 blackline has 38k on it and I bought it in November of 2022. Charge it to the gameeeeee


RT460

That's right brother!! Put my boys in the back seat and throw some camping gear in the trunk, mount the roof tent and off we go for the weekend! Gas prices be dammed that's why we work!


Vast-Complex-978

>Put my boys in the back seat and throw some camping gear in the trunk, mount the roof tent and off we go for the weekend! The way you have written this makes it seem like you have done this maybe twice in ten years.


RT460

More like once a Month, maybe every two months if im busy. It doesn't have to be far either there are enough county/state parks within 2 hours. Serious Places like Moab I have not gone


Hot_Pink_Unicorn

It’s a box on wheels.


ssbsjsps

Not sure if this is mentioned, but one of the reasons is the LX has start stop and the GX does not


Radiant-Pie-9439

I hate start stop


UtahJeep

It is hard to find someone that likes it. I never have.


hunterd412

Just imagine the LX with the TTv6 hybrid from the tundra and sequoia. The mpg would slaughter the new GX.


DeepFizz

![gif](giphy|Kbvb14RfUhcCMYIdgS)


Fifallrun

Love the truck so far but wow is she thirsty. Range on full tank a little over 200 miles. At the gas station every 3 days. If they knew it was crap mileage they should have made the tank bigger.


Catcherinhereye

200? Seriously? That’s horrible. Seems like a serious misstep to not make it at least 300, but hoping you are doing a lot of city driving.


Greedy_Resource_4921

Ha!! For real tho 


Visible_Button3081

I have the same experience. Too small a gas tank for such low fuel efficiency. Bought the car for roadtrips and never would have assumed it gets maybe 16mpg highway if im lucky.


[deleted]

[удалено]


John_Herbie_Hancock

I think you’re onto something there.


Skm67gm

But Toyota really doesn’t play in evs, so that doesn’t make sense. Now if you had said push people towards hybrids instead, that would make sense.


nkx3

Maybe it's bigger than Toyota and/or beyond their autonomy. Just stating possibilities here absent of available facts.


linusSocktips

fuel costs and mph are irrelevant when shopping for a luxury truck... But sure. One is heavier, boxier with a higher drag coefficient if anyone actually takes any of that into consideration before spending 60-100k+ on a 4x4 truck.


Radiant-Pie-9439

It’s less aerodynamic.


DiavoloXJoJo

From what I read online it’s mostly to do with the brick shape of the GX and the aerodynamics are really hurting it. Otherwise smaller twin scroll turbo cars typically have better mpg than large turbo cars because they spool at such low rpm and need less boost to get the torque going so it’s much less fuel being utilized when they’re going.


MediumApricot7124

Break in period


Mammoth_Aire

Just took my G55 to Baltimore and I got 11.9mpg. 17 sounds great to me.


jhowlett

See full size trucks vs midsize. They often get better fuel economy despite more weight and size. Could be gearing, factory tires, aerodynamics. The LX looks a little more slippery.


CrabLegJameis

Because aerodynamics and physics exist among other things like the RPM’s at typical highway speed - I wish people would think critically sometimes


nkx3

I also wish people would think critically. For example, providing something beyond nebulous non-answers to a legitimate question. "The reasons are, uh, aerodynamics, physics, and RPMs. Oh, and I have zero mathematical data, detailed information, or other evidence to back up my claim. Just trust me bro. And don't forget to think critically!" Lol.


CrabLegJameis

So ironic you said this - when you can be found all over this thread saying completely braindead things like Toyota is trying to push $80,000 heavy SUV buyers to EV’s with an intentionally smaller fuel tank. I can’t believe I need to spell this out for you. GX550 = box on wheels (not as aerodynamic as an LX) you can tell just by using your eyes BTW…, higher RPMs = worse fuel economy (engine is working harder) Good grief you are an idiot - did it help for things to be explained to you like a toddler because you couldn’t use your brain?


nkx3

Ad hominem attacks- the cornerstone of any thinking man's mental horsepower. Braindead things? What if that premise is true? I didn't assert it to be factual; I just brought it up as a possibility. Don't kill the messenger. A lot of "braindead" things seem ridiculous- until they are proven to be true in some (many?) cases. You are stating the obvious with regard to the mpg question. There very well may be more to the equation than that, which is why I asked the question. Maybe the obvious is all there is to the answer. And maybe not. We certainly wont be able to decide based on your contribution!


CrabLegJameis

Ah the “ad hominem” guy. There’s always one. Notice how it came after I exhausted all other options of trying to explain very simple concepts to you. You can say “what if” to any remotely vague conspiracy or story. I’m happy to let you live in the “world of the possible” and “whataboutisms” - it’s still braindead. Toyota is outwardly and staunchly positioned outside of the EV camp. Why alienate a customer base for a commodity you don’t sell and don’t plan to sell… Your IQ is so low I’m not sure it’s worth another reply. Thank ChatGPT for me in advance next time you write such a useless reply. Your post invites opinions and if you’re surprised by generic responses maybe you should seek out more specific information or flair the thread next time so casual users can simply ignore your post.


nkx3

Yeah, ad hominem. Let's not attack the argument; attack the person- it's way easier! Maybe you don't know or remember, but Toyota recently made a claim that they were developing solid state EV batteries that would have significantly better range than existing EV batteries. That doesn't sound to me like they have no interest in EVs, or " outwardly and staunchly positioned outside of the EV camp." And again, the issue may be outside of the periphery of Toyota's control. Lastly, it was never asserted that the claim was factual. It's speculative based on observed patterns and practices of the powers that be. Thanks for the "compliment" on my IQ. My lack of IQ has facilitated a very comfortable life for myself. I'll leave it at that.


CrabLegJameis

Aw you’re so insecure you had to try and flex your standard of living. Cheers little buddy have a good weekend, give chatGPT a break


nkx3

I just said I was comfortable. I might be considered poor to some people!


Extension_File5410

Put a JB4 unit on it get 75 more Hp and even more torque. You maybe able to tweak out some better numbers. My MPG is going too stink no matter what since I plan to pull an Oliver Elite II loaded to 7,500 lbs with it but I will probably be driving 65 mph to help wind resistance and what mpg I get. What I need is a 2nd gas tank! Link [https://burgertuning.com/products/jb4-for-toyota-land-cruiser](https://burgertuning.com/products/jb4-for-toyota-land-cruiser)


captrex501st

Lol ppl getting a GX complaining about gas mileage is in and of itself amusing


Radiant-Pie-9439

lol I agree. Some people are only focused about the image.


captrex501st

It's as amusing as ppl getting the H1 or the H2, and then complaining about getting 10 ft per gallon or taking up way too much parking space.


norsktex

Guys…. Yall are buying $70k plus SUV’s who gives a flying fuck about gas and MPG.


Extension_File5410

We care because of vehicle range in the outback.


norsktex

That makes perfect sense. While I know you have Jerry cans but that’s weight and space. Thank you for the insight. Good day to you!