Postby pathy-logical » Mon Nov 14, 2022 11:35 am
I'd like to see this thread continue because I'm still towing and always looking for more info and new ideas. My pathfinder is a 2012 S, V6, 114,000 (s)miles, radiator/trans cooler bypass, 265-70x16 tires, Air Lift 1000 air bags in the rear springs, Trail Ridge extendable side mirrors, otherwise stock. I regularly get 22-25 mpg on the highway at 65-70 mph,15-20 mpg around town and 17-22 mpg combined. I practically always have the A/C on, don't like driving with the windows open. The trailer is a 2020 Jayco SLX8 212QB, my unit specs at approx 26', 4300# dry, 1200# cargo capacity, GVWR 5500#, on dual Dexter 3500# axles and I estimate the frontal area to be 55-60 sqft. I use a Reese Straight Line hitch with 800# bars. With this system I have load leveling and sway control but don't need to disable any anti-sway device in order to back up. Mileage when towing is 10-13 mpg but most of my towing has been on city and county roads of SWFL with some limited freeway towing. Not for any other reason than that's what the travel plans dictated.
So this rig puts me very close to the limits of what my R51 is rated to tow and haul with my wife and I and our two dogs. My reasoning was this. Being in FL we're not going to be climbing or descending any long steep grades so why not get as much trailer size as the Pathfinder would safely handle. I figured we would be much more likely to get another SUV or truck rather than a trailer in the future especially if/when we decide to travel into mountainous areas or out west where the winds can get really strong and come from any direction.
On the freeway I would prefer a longer wheelbase but in towns or tight turns the short wheelbase is beneficial. Even with sway control this setup demands all your attention on the freeway. The 3.13 gears are really not good for towing this much weight nor is the IRS. In fact my main reason for installing the air bags was to help stiffen the coil springs laterally. I have no issue with towing in 4th gear except that the torque converter only locks up in 4th gear and only above 40mph. This can cause it to lock and unlock in headwinds and going up grades. I think higher numerical gears or a means of unlocking the torque converter manually would help. Otherwise it means going to 3rd and dealing with the higher revs. I would prefer a solid rear axle with real limited slip and leaf springs. I've given some thought to getting a second set of wheels/tires of smaller diameter to get the gear ratio in the range of 3.3:1 but if that adversely affects mileage too badly then range between fill-ups becomes an issue.
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Last edited by
pathy-logical on Mon Nov 21, 2022 10:52 pm, edited 1 time in total.