We have a 2022 17' CCJ with 90/65, and tow it with my 2016 4Runner. No issues. I did get a higher and longer receiver to level the trailer and keep the hatch from bumping the bow trolling motor.
At the end of last year, we traded my wifes 2014 Highlander for a 2022. We were not planning on getting a new one, just yet. With 150k miles it was still in great shape. When we went browsing, found out the V6 was discontinued for 2023! Only 4cyl turbo and hybrids.
It was a scramble to find a left over V6 AWD w/XLE package. I wanted a factory hitch, but couldn't find one within a hours drive. Having the factory hitch installed, was priced rediculous. I haven't put an aftermarket hitch on it yet, but will in the future. I have a pick-up truck on a stick (5'x8') utility trailer that I use often.
From the manual:
-1000lb capacity with no trailer brakes.
- At 2000lb a sway control device is required
- Over 5000lb a load leveling hitch required
(It looks like the lawyers wrote the manual)
I know our trailer doesn't have brakes and suspect the one with the 1860 doesn't either. I think our boat/trailer combo weighs in around 1800lbs. They told me the Tacoma was going to phase out the V6 too! For now, they look like they are keeping the old 4Runner around with V6. As you said,, it is not gas milage friendly. It is only a half hour tow to the river, so not a good reason to get a better milage one, for us.
I have been a fairly loyal Toyota owner, but suspect the 4Runner will evenualy get replaced with a different brand. A 4cyl turbo doesn't excite me much for towing. Might be fun in a Rav4 though. Hope this helps you some. Anyway, good luck with your tow vehicle search.
CORRECTION: The boat/trailer weight estimate was too high. It included my son and I.