Real world MPG with small lift and all terrain tires?

[TFin04]

I know MPG stuff has been talked about a lot, and I apologize for a rehash but I couldn't find answers to this specific question.

We're considering a GX to be a daily driver and family camping/towing vehicle. I've found a 2007 with 155k and good service history that I am considering buying this weekend.

My plan for the vehicle would be converting to coil springs and achieving a small lift (2-3"), and installing a set of fairly mild 32" all terrains, probably Cooper AT3.

Cruising around 70-75mph, what type of MPG is realistic with a small lift and slightly larger/heavier tires than stock?

Thanks for your time.

 

[jreask]

I had an '05 for a little while and I remember getting about 18MPG combined.
Not too bad for a heavy BOF vehicle.
Our 2017 gets 20 combined. I was pleasantly surprised.

 

[JLee50]

I have some offroad mileage in here - I also live in northern NJ, and often accelerate accordingly...traffic patterns here are ridiculous.

255/75R17 Duratracs, 2-3" lift (don't have before/after measurements - it's Ironman's Foam Cell Pro kit with "B" springs).

 

[chiz45]

2”/1” Billsten and FJ springs, 265/70-17 KO2 E’s (@39 lbs) and I’m averaging 13.7 unadjusted.

3/27/18 update: finally did a 95% hwy drive Vegas to so cal 16.2 mpg

 

[Virgilus11]

2016 with 35" (315/70/17) BFKO2 and 4,56 gears. At 70 mph the rpm is about 40-50 rpm higher then original.
I get 16 mpg at 70mph. If I go to 80mph would drop to 14.5 pretty fast.

 

[Bumbo]

[MENTION=128282]JLee50[/MENTION]

I like your brand of crazy.

 

[BlackCat914]

I get roughly 18.3mpg lifted on 33’s. 99% highway commute @70ish mph. Anything over 70 and it drops like a rock.

 

[Bruin1md]

2016 with 35" (315/70/17) BFKO2 and 4,56 gears. At 70 mph the rpm is about 40-50 rpm higher then original.
I get 16 mpg at 70mph. If I go to 80mph would drop to 14.5 pretty fast.

Mine is pretty close to this. I have KO2's 285/60/18's without a lift and I get about 16-17 mpg at 70mph. Problem is that I'm usually going 80mph when allowed on the interstate, and my mpg's seem to drop a bit.

 

[Antonov]

I recently picked up a 470. I've found that MPG really depends on type of driving and driver. Mostly highway and keep it under 80mph and I think the 470 does great. As soon as you get into city driving even if you baby it mpg plummets.

I've been averaging around 13.5 mpg and 50-60% street driving, and I usually cruise at 80-90mph when on the freeway. I did a 120 mile drive all highway, i reset the computer and managed to average 17.5 mpg, again driving 80-90mph

I just added a set of 285 KO's so we'll see how that goes. Will update this thread.

 

[TacoRunn0517]

I recently picked up a 470. I've found that MPG really depends on type of driving and driver. Mostly highway and keep it under 80mph and I think the 470 does great. As soon as you get into city driving even if you baby it mpg plummets.

I've been averaging around 13.5 mpg and 50-60% street driving, and I usually cruise at 80-90mph when on the freeway. I did a 120 mile drive all highway, i reset the computer and managed to average 17.5 mpg, again driving 80-90mph

I just added a set of 285 KO's so we'll see how that goes. Will update this thread.

That can be said about any vehicle ha. I think it would be more noteworthy if your MPG split was producing extreme numbers.

 

[Antonov]

I guess I should've been more clear. My other vehicles are much closer city to highway compared to the GX.

That can be said about any vehicle ha. I think it would be more noteworthy if your MPG split was producing extreme numbers.

 

[2016 4Runner SR5]

2016 3" front and rear 295/70/17 Ridge Grappler 14.5 avg according to the dash display. Never calculated by hand, not really anything I can do about it so is what it is!

 

[Andres_Huerta]

I average 15-17, I have 255/80/17 Cooper St Maxx, 2 inch lift, and wood grain warrior roof rack

Sent from my Pixel 2 XL using Tapatalk

 

[Nickk6]

I've averaged about 15mpg on the way to vegas, 15N. If I just city drive, I only get 11mpg. I'm on 33" all terrain tires

 

[cognus]

fuelly

Fuelly shows for the most part hand-calculated mpg

It looks to me like the very last couple of years were getting a hair better mpg

Contrary to what some are saying here, my 07T4R 2wd gets about the same regardless of where I drive. It gets 2mpg better, average, if I run high grade and high octane, but otherwise, its sensitivity is to jackrabbit drive-off. if you floor it pulling away from every stop it would cut by 30%. Seems to 'dump' fuel advance-timing etc like the good old days.

I was just checking a video series yesterday you guys may have seen called "Overland". anyway the guy is aussie or brit and was driving a rigged GX470 here in the American west fully loaded with gear and said he was getting a solid 10mpg.

 

[4drago]

Smiles per gallon?

 

[oldschoolpl510]

I have some offroad mileage in here - I also live in northern NJ, and often accelerate accordingly...traffic patterns here are ridiculous.

255/75R17 Duratracs, 2-3" lift (don't have before/after measurements - it's Ironman's Foam Cell Pro kit with "B" springs).

Thank you for sharing this. As someone who is considering a GX, This helps a lot!

 

[cognus]

ditto. good detail.
oldschool what year model is yours and have you done any mods to the intake or other enginewise

 

[470SNC]

295/70/17 with Icon lift and Inno Shadow cargo carrier on roof: 14.6 avg mpg, thats with a hour commute for 25 miles to and from work, lots of traffic

 

[cognus]

is 14.6 "hand calculated" vs. indicator display?

also a question for you owners: when I go through fuelly.com's list of GX 470's, it seems pretty clear that the late models were reporting a tad higher mileage than earlier ones. Did the mapping get better for, say, 07 to 09? or maybe the luck of the draw most of the reportees may be just grabbing groceries and running quiet low-stress tires...