How bad is your gas mileage?

[Markuson]

This truck is for wheeling. I go to the mall less times per year than to the trails.

Do people still go to malls?

 

[Diff Kraken]

Do people still go to malls?

Exactly!

 

[SQRRRL]

Just for grins,sometimes cruise control can hurt your mileage.

If it’s hilly while on cruise control I use 5th gear. I have 6 speed and it helps with MOG

 

[linuxgod]

Thanks! I just ordered a new PCV valve.



Wondering if I should go ahead and replace all 3 of these oxygen sensors, or just the downstream, or maybe wait and see if the new PCV valve helps:

Ft Oxygen Sensor, LEFT and Right

2008 Toyota Land Cruiser 5.7L A/T 4WD Oxygen Sensor - 8946704060 | McGeorge Toyota, Richmond VA

Oxygen Sensor. 2008 Toyota Land Cruiser 5.7L A/T 4WD. Genuine Toyota Part - 8946704060 (89467-04060, 8946735110). Ships from McGeorge Toyota, Richmond VA

toyotaonlineparts.mcgeorgetoyota.com

LAND CRUISER; AT CONVERTER; LEFT and Rear Oxygen Sensor, RIGHT

2008 Toyota Land Cruiser 5.7L A/T 4WD Oxygen Sensor - 8946536040 | McGeorge Toyota, Richmond VA

Oxygen Sensor. 2008 Toyota Land Cruiser 5.7L A/T 4WD. Genuine Toyota Part - 8946536040 (89465-36040, 894650G070). Ships from McGeorge Toyota, Richmond VA

toyotaonlineparts.mcgeorgetoyota.com

LAND CRUISER; AT CONVERTER; LEFT and RIGHT

2008 Toyota Land Cruiser 5.7L A/T 4WD Oxygen Sensor - 8946560370 | McGeorge Toyota, Richmond VA

Oxygen Sensor. 2008 Toyota Land Cruiser 5.7L A/T 4WD. Genuine Toyota Part - 8946560370 (89465-60370, 894650G080). Ships from McGeorge Toyota, Richmond VA

toyotaonlineparts.mcgeorgetoyota.com

Replace one thing at a time. That way you know what was wrong

 

[linuxgod]

Got 14-15 while driving around Acadia and the hills of Maine this week. That’s 45-55mph

With the trailer hooked up and doing 70+ I’m getting about 7-7.5 though I did have one stretch where I got about 6mpg. If the A/F mix stays around 14.5 I can pull off 8mpg or more at 70+ but too often I see it drop down around 13:1. Wish I understood why the ECU riches out the mixture even in flat lands which require little to no throttle.

 

[Artie]

Here is a screenshot from my mileage spreadsheet, I include math for the tire size difference. Most of my tanks involve towing, except for the last one….that is from todays fill up. Today I had a solo drive with mostly highway driving, 150 miles. 12.9 mpg, I could probably squeeze out a little more with less throttle and more positive happy MPG type thoughts. I have bumpers, armor, 40 gallon LRA, etc… she’s a chunky one.

 

[Tex68w]

Lord those numbers are hard to stomach lol. That said, I am not surprised by single digit fuel economy if a fully built 200 is towing anything over 3K pounds.

 

[Artie]

Lord those numbers are hard to stomach lol. That said, I am not surprised by single digit fuel economy if a fully built 200 is towing anything over 3K pounds.

Thankfully, I don’t have to daily this beast.

 

[Diff Kraken]

An update with the new PCV valve installed- the mileage is better. Not great, but a lot better.

With the ARB bull bar, 275/70r18 K02 tires (33", 59lbs), and the Yakima Megawarrior roof basket on for hauling a couple duffle bags up top- I ended up at 13-14mpg in stop and go highway traffic at speeds between 45-70 over about 80 miles today. Amazingly, 14mpg is a 55% improvement over the 9mpg I was seeing with the old PCV valve (175k miles). I'll do O2 sensors next to see if it further improves the mileage.

 

[Tex68w]

I knew something wasn't right.

 

[linuxgod]

Are you on stock gearing? Also keep in mind you're actually getting slightly higher MPG (maybe 3%?) as you have a larger tire size so the speedometer reads lower and the odometer is consequently a bit low.

13-14 is respectable for a rig like yours. I top out at ~15mpg if I drive 45-50. At 70 I get ~13. (I'm geared with 4.88s though my stock gearing would've been similar up to ~60-65 but I would've seen ~15 at 70mph)

 

[beer]

Recently averaged 16.7mpg over an 1850 mile trip in '13 LX, mostly on 55/60mph flat roads where I mainly drove the speed limit in S5, shifting to S4 on steep uphills and S6 on downhills. Recently replaced PCV too. 285/75R17s and roof rack are only relevant mods.

 

[Artie]

An update with the new PCV valve installed- the mileage is better. Not great, but a lot better.

With the ARB bull bar, 275/70r18 K02 tires (33", 59lbs), and the Yakima Megawarrior roof basket on for hauling a couple duffle bags up top- I ended up at 13-14mpg in stop and go highway traffic at speeds between 45-70 over about 80 miles today. Amazingly, 14mpg is a 55% improvement over the 9mpg I was seeing with the old PCV valve (175k miles). I'll do O2 sensors next to see if it further improves the mileage.


View attachment 3056789

Now I’m jealous.

 

[MrX]

I get 20 HWY, between 70-80. I was shocked the first trip I took. Bone stock. A pleasant surprise.

 

[linuxgod]

The LX seems to do better on MPG bone stock. I never saw much over 17mpg back when I was stock. Better aero maybe?

 

[bloc]

The LX seems to do better on MPG bone stock. I never saw much over 17mpg back when I was stock. Better aero maybe?

Lowering itself on the freeway would definitely help. Larger wheels.. maybe?
I’d bet a 16+ with the curb-dragging sport package aero stuff helps as well.

 

[Tex68w]

The best we ever saw in our 2019 LX was 19.2mpg on 33's with corrections made for the larger tires.

 

[mbennett22]

There should be 4 sensors total, and you'll only really need the 2 primary upstream sensors as those are the ones responsible for closed loop fueling. Bank 1 Sensor 1, and Bank 2 Sensor 1. Don't worry about the secondary sensors in each bank as they're more for emissions.

O2 sensors slow down in response as they age. While still above the threshold of a diagnostic CEL, they'll affect closed loop fueling and efficiency. I plan to change mine at about 150k.

For a cheaper option, for those that don't mind splicing wiring, you can buy name brand Denso's with flying leads. Splice the new sensor to the harness of the existing sensor.

View attachment 3050610

would you happen to have the part numbers for these two sensors for a 2009. I assume they are probably the same but don't want to order the wrong one

 

[linuxgod]

would you happen to have the part numbers for these two sensors for a 2009. I assume they are probably the same but don't want to order the wrong one

Grab you VIN and check partsouq.com. While they probably haven't changed I have seen part numbers change mid-year so for anything important I'd always double check against your specific vehicle

 

[manofthewoods]

I get 20 HWY, between 70-80. I was shocked the first trip I took. Bone stock. A pleasant surprise.

View attachment 3057765

Same as post 222.
Lucky I guess.