How to get better MPG

How the heck are you guys getting 30MPG?!
They magically reset their mpg at an opportune moment when they know they will be going down a loooong hill. If these people were honest they would take a picture after refueling to show how much range per tank they can get. At 30 mpg they could probably get 450 mile range per tank.
 

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They magically reset their mpg at an opportune moment when they know they will be going down a loooong hill. If these people were honest they would take a picture after refueling to show how much range per tank they can get. At 30 mpg they could probably get 450 mile range per tank.
My last four fill ups. The DTE numbers have actually been higher in the past. Tank averages calculated at the pump have been 27.5 to 28 mpg.

YRMV, but good fuel economy IS possible.

93 octane E-0.

FE noise generator/air brake removed from the roof.

ECO mode.

Four lane highway (non interstate) ~60mph on cruise control. Two lane highways - speed limit.

Michelin X Ice tires for now. Same mileage as OEM Michelin LTX’s.

If you notice the fifth picture, the lifetime average MPG increased significantly. This is the second time it happened since I’ve owned Miss Daisy. I was on Highway 64 along the Ocoee River, waiting for the lifetime average to bump up from 26.2, to 26.3. I looked down and the display said the lifetime average was 29.5. I guess the Toyota CPU gets tired of calculating the lifetime average when the number of miles gets too high. So the CPU BUMPED IT UP without me touching anything. It drifted back down to what you see in the fourth picture by the time I got back in town and filled up the tank. It will continue to find its new ‘lifetime’ average as time passes.

Weird.

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EDIT: it was the fifth picture that the Total Average number jumped up by the Toyota computer
 
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Dealership was servicing our LC & gave ‘25 Capstone Sequoia 4x4 for loaner. I drove 2.5 hrs to DFW to take it back & switch out to our LC. The Sequoia hybrids just run hard & get it done. Nice road rigs! Avg 19.3 MPG @75 MPH on central TX county roads & I-35W. Nice ride, but she’s a lotta girl & remembered why we traded ours as the size is just too big - a LC300 size would be perfect!

Got in the LC that’s a 1 1/2 months old & from the start just got whacked with head winds. Drove from DFW down to Seguin, TX (near San Antonio) & then over to West of Houston area. Good Friday mixed w/ regular traffic made it a fun suck on I-35W. Nose of the LC was dead into 20-25 mph sustained southerly wind. Ran around Austin’s loop TX130 w/ its 85mph speed limit & LC had all the power I needed. That leg of trip was 14.5MPG going 70-90mph, w/ no crossbars, 2100 miles on the odo. Hopefully when the 2.4L breaks in MPG will get better. 2nd leg going east on I-45 & US90 stayed between 75-80 w/ crosswind & got 18.29. MPG. Small win, as that’s best MPG we’ve seen with mostly 16-ish MPG first 6 weeks we’ve owned it.

Different subject. The LC was at the dealer as we had a weird suspension problem earlier in week. Wife was driving & vehicle became really unruly while driving rocking side to side after bumps, & of course Im across the country on a flight & can’t help. Dealer gets the LC back & discovers rear sway bar mounts have come very loose. They talked to Westcott & found a service reminder that all parts are to be re-torqued after 500 miles. I didn’t get the reminder. Don’t just torque the components unladen on a lift, but while laden (on the ground) retorque to specs. Everything was inspected & tightened up & all is good. Kinda sad part is a week before @ 1100 miles paid for an oil change @ West Houston Toyota dealership said they did 100 point inspection, including a video. Guess they look & don’t touch. Decent reminder for all of us with suspension mods to do periodic checks. Got give it to Westcott as Ive had their lifts on a Sequoia & this LC & have found them always available, & in my perspective a class act in a world of wannabe & startup suspension companies.

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I'm at 30K miles and did a transfer case and diff oil change. I noticed a 1-2 MPG gain.
 
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Just got back from a 4000 mile trip from Indiana to Arizona, Never checked the mpg for the trip. But my miles to empty went from 330 to 390 per fill up on highway miles, also my long term mpg that was reset 7k miles ago went from 21.9 to 22.3. Some of the miles to empty increase was due to increase in outside temperature.
 
Wow!!! I need to do that!

Was it difficult?

Do you have the procedure details?
If you can change the engine oil, you can do diff oil changes. It's fairly easy - it is a drain and fill job. There are plenty of videos for similar diff oil changes on 4Runners, Tacomas, Tundras. I let the dealer do my front diff at 15K. I need to take care of the front next.

Here are the specs for quantities to order.
  • Front Differential: 1.3 quarts (SAE 75W-85, API GL-5), 10mm Hex key bolts, torque to 36ft-lb
  • Rear Differential: 6 quarts (SAE 75W-85, API GL-5), 24mm socket bolts, torque to 36ft-lb
  • Transfer Case: 1.6 quarts (SAE 75W), 24mm Socket bolts, torque to 27ft-lb

I used Liqui Moly brand gear oil. Mobil1 and Valvoline are great too. They come in 75w-90, which is fine.
I got a set of crush washers on Amazon.
And some 1/2" hose to help with the awkward filling positions.

Procedures:
Diffs:

Transfer Case:
 
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Ask and you shall receive-

Headed There - Chicago to Colorado

Flat


162.1 Miles - 10.28 Gallons = 15.77 mpg

230.5 miles/12.383  = 18.614 miles

241.5 miles/13.980  = 17.275 miles

245 miles/ 15.343  = 15.968 miles

170.6 miles/9.887  = 17.255 miles

Mountain - Headed There

291.4miles/13.385  = 21.771 miles

Off-road

142.2 miles/10.543  = 13.488 miles

140.0 miles/9.864  = 14.193 miles

Return Trip - Mountain

240.3 miles/11.423  = 21.0365 miles

Return Triip - Flat

313.4 miles/15.038  = 20.841 miles (75 mph cruise control )

154 miles/8.645  = 17.814 miles

246.3 miles/13.836  = 17.801 miles

193.7 miles/9.275  = 20.884 miles (70 mph cruise control)

87 Octane - Chicago - Arkansas and back

205.2 miles/12.991  = 15.796 miles

135.4 miles/8.696  = 15.57 miles

224.8 miles/15.158  = 14.83 miles

234.4 miles/13.093  = 17.903 miles

242.1 miles/13.036  = 18.572 miles
This is great! Do you have any towing numbers? I'm primarily in town with an occasional 30 mile trip. I'm sitting at 17.8. cruise control always. Even merging on the freeway which is kind of annoying to the people behind. Merging onto the freeway is when you can suck it down.
 
Anybody else notice the small gas tank size?

I do a little trolling
Yes, I'm waiting for Long Range America to come up with the auxiliary tank. The Chinese make one but I'd like to buy one made in the states and have a local installer put it in. Apparently, it requires some relocation of the exhaust system.
 
Most owners ignore the details when complaining about MPG,
Rim weight/Tire selection/Roof rack/Driving style/outdoor temp

Yes egg 🥚 under the pedal technique is a must, not practical on modern day USA roadways

Here are 2 recent trips in my LCLC
18” wheels (Bradley V 26lbs) no roof rack, stock height (for now) Michelin XLT

Trip 1:
Stop and go traffic / South Bay to SFO 10:00am weekday 31.7 mpg (slow lane/minimal passing)

Trip 2:
Backroad drive up Metcalf Road with 2 miles of constant 10%-14% grade 25.5 mpg (maintained local speed limit and greater)
I wonder if it was a mistake to put the factory Rock rails. There are lighter rock rails out there.
 
gas prices up significantly in the UK - diesel now at £1.83 per litre with £2.10 per litre in prospect before this CF recedes.

So in the Uk 4.54609 litres to a Uk gallon = £8.31 a gallon.

In the US this would equate to 3.78541 litres in a US gallon = $10.52 [at current £/$ exchange rate]

Usually cruise at 70mph to 85mph averaging 26.7mpg. So on my 107 mile trip to Bristol this week thought I’d explore how economically I could drive the LC250 [without roof bars but with KO3]

Outbound, keeping the speed below 71mph on motorways: 31.2 mpg [UK imperial]

Inbound following a big coach [with a tailwind] for 80 of those miles at 62-65mph = 38.3 mpg!!!

38.3mpg. I was stunned by the difference.

Conclusion, if you want to save on fuel slipstreaming is the way to go.

BTW average mileage previously 26.7 mpg. 😭
I wonder if turbo diesel gives you mileage advantage? Also, ambient temperature should be considered.
 
Ask and you shall receive-

Headed There - Chicago to Colorado

Flat


162.1 Miles - 10.28 Gallons = 15.77 mpg

230.5 miles/12.383  = 18.614 miles

241.5 miles/13.980  = 17.275 miles

245 miles/ 15.343  = 15.968 miles

170.6 miles/9.887  = 17.255 miles

Mountain - Headed There

291.4miles/13.385  = 21.771 miles

Off-road

142.2 miles/10.543  = 13.488 miles

140.0 miles/9.864  = 14.193 miles

Return Trip - Mountain

240.3 miles/11.423  = 21.0365 miles

Return Triip - Flat

313.4 miles/15.038  = 20.841 miles (75 mph cruise control )

154 miles/8.645  = 17.814 miles

246.3 miles/13.836  = 17.801 miles

193.7 miles/9.275  = 20.884 miles (70 mph cruise control)

87 Octane - Chicago - Arkansas and back

205.2 miles/12.991  = 15.796 miles

135.4 miles/8.696  = 15.57 miles

224.8 miles/15.158  = 14.83 miles

234.4 miles/13.093  = 17.903 miles

242.1 miles/13.036  = 18.572 miles
87 octane? Would lower octane give you worse or better gas mileage? What is the octane recommended by Toyota? I've been spending money on supreme (92'ish).
 
Yes, I'm waiting for Long Range America to come up with the auxiliary tank. The Chinese make one but I'd like to buy one made in the states and have a local installer put it in. Apparently, it requires some relocation of the exhaust system.
At the SoCal Overland Expo, I met with the owner of the white LC250 that had the prototype installed. It was an interesting set up - you have to fill both tanks individually by maneuvering your fill nozzle between the main or aux inlet pipe at the factory fill cap. The fuel transfer process is using a manual transfer pump button, moving fuel from the aux tank to main tank. He did end up chopping the little rear muffler to clear space for the tank. The downside is needing a bulky spare tire carrier or driving without one entirely. BTW, I wonder if anyone has figured out how t bypass the TMPS system warning light if you drive with 4 tires w/o spare.
 
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Mileage will ALWAYs be the best in the slowest speed you CAN DRIVE IN THE HIGHEST GEAR WITH AN ICE....BET 60MPH IS 1200RPMS IN 8TH....
 
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87 octane? Would lower octane give you worse or better gas mileage? What is the octane recommended by Toyota? I've been spending money on supreme (92'ish).
I didnt notice a change in mpg based on octane. The only thing that had an a big impact was driving slower.

Toyota recommends a minimum of 91 octane.
 
I just find it odd that there is such a huge discrepancy between vehicles. I certainly understand that the mods make a huge difference. I drive like my accelerator pedal is a sea urchin, I kept stock tire size but did shift to KO3s and I do have a full length roof rack, but even just rolling around town I can't get better than 16 mpg and about the same on the highway. I accelerate ever so gently, use cruise control and don't go that far over the posted speed. I do notice that at highway speeds if I shift to manual that I'm in D7, never D8. I wish the shift algorithm was a bit more economically geared. Anyone done anything to change that? I'd keep it in manual if I could use cruise control but it's not allowed.
 
After 2 years I'm pretty much at 19.2 MPG mixed city/hwy. (AII STOCK but for 100lbs of skid plates) To be honest City suxs... short drives (5 to 10 min) get around 17 on a good day! Over that reaches close to 19 plus. Way better than the old V8 that got 11 MPG on the same roads!
 
New 16MPG ‘26 Premium @ 3000 miles.
I put some different recovery points on FRI night, & while under the LC took in just how darn un-aerodynamic our LC front chin area is compared to our 3G Tundra or Sequoia. It’s almost like they weren’t even trying to do anything but make right angles under the front end where the radiator core support meets the facia. I barely passed fluid dynamics in flight school, but a blind man can see the LC has Cd compressibility issues. Look at the bottom of the silver grill facia where it meets the core support, & best guess is Toyota designed a high pressure area to spill air into the lower grill area to assist in engine cooling, but that area is one big drag magnet.

Take a vertical windshield (second only to a FJ or Wrangler), add a roof rack, a flat & open grill the size of Kansas, & my poor girl never had a chance smoothing air. The LC underbody looks pretty good, but that chin area is anything but smooth. The Tundra at least has a front active electronic spoiler that deploys @ speed. The Sequoia has extended facia & rolled skid plates that smooth out the chin & underbody pretty well.

Those chiseled features on the LC make me wonder if I can actually get 20+ MPG.



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