ramangain
Clarksonian disciple
Folks get 20%+ better fuel mileage when converting to PT 4wd in the 100 series. Anyone done this yet on thec200 series?
What is Your Highway 'Steady State' Mileage Average?
- Thread starter WrongWayDave
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That seems likely to be exaggerated.
The 5th Gen 4Runner is available with full time 4WD (Limited Trim) and part time 4WD (all the other trims). Little difference in fuel economy.
@bjowett was working on this at one point. Search for his thread
ramangain
Clarksonian disciple
20% reported consistently. 20% on 15mpg is not much
buy an aluminum Ford expo with turbos and start stop tech.
LC’s get trash mpg’s. It’s the nature of the beast.
I seriously doubt those reports. There is nowhere near a 20% difference on the 4Runner.
ramangain
Clarksonian disciple
Go check the 100 tech forum, find the users who make the reports, and challenge them. Kind of meaningless to cast doubt without proper research, don't you think? Especially when the data is available.
I don't have a horse in this race, but the data sources are reputable in my eyes.
I don't have a horse in this race, but the data sources are reputable in my eyes.
RET2
SILVER Star
This
ramangain
Clarksonian disciple
Me too
Toyota has done fuel economy testing of the 4Runner with both part-time and full-time systems. Both are rated with identical fuel economy, 16 city, 19 highway, which you can see here:
2025 Toyota 4Runner | Toyota.com
A wild world awaits with the all-new 2025 Toyota 4Runner. With awe-inspiring capabilities and versatility, the all-new 4Runner is the ultimate tool for diving into your world of adventure.
The 4Runner’s full-time system is very similar to the 200’s system — lockable Torsen center diff.
So I have a hard time believing results would be any different for the 200. I suppose if you went to manual hubs that might reduce friction somewhat. But then, of course, shifting into 4WD would require you to get out of the truck and lock the hubs.
ramangain
Clarksonian disciple
There ya go.Toyota has done fuel economy testing of the 4Runner with both part-time and full-time systems. Both are rated with identical fuel economy, 16 city, 19 highway, which you can see here:
2025 Toyota 4Runner | Toyota.com
A wild world awaits with the all-new 2025 Toyota 4Runner. With awe-inspiring capabilities and versatility, the all-new 4Runner is the ultimate tool for diving into your world of adventure.www.toyota.com
The 4Runner’s full-time system is very similar to the 200’s system — lockable Torsen center diff.
So I have a hard time believing results would be any different for the 200. I suppose if you went to manual hubs that might reduce friction somewhat. But then, of course, shifting into 4WD would require you to get out of the truck and lock the hubs.
First, a 4Runner is not an LC/LX.
Second, the conversion kits on the 100 series do use manual locking hubs.
Comparing the OEM 4runner solution is not an apples to apples comparison to an aftermarket supported 100 series solution.
Personally, I'd be delighted to see the 17-18 mpgh rating climb to 20+ mpgh for a couple grand of parts and some wrenching time. As a regular tower, although I never see close to mpgh while towing, the extra cost outlay would pay for itself over time (in addition to lower wear and tear on front drivetrain components).
rgsiii
SILVER Star
On my 2013 LX570 at 70, on fairly flat, low altitude interstates I can get 19-20 MPG. This is with regular gas. If I speed up 10 mph, the fuel economy drops significantly--16-17 mpg. Towing a 5,000 pound travel trailer on same interstates, below 70 mph, about 10 mpg. My vehicle is totally stock. As an addendum, today with the 5,000 pound trailer on the Natchez Trace (speed limit 50) I got 11.6 mpg—it is a beautiful drive.
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