genick wrote:
We're looking to downsize our trailer to something in the 20' to 22' range, & also to downsize from our V8 truck to a V6, preferably a SUV. The trailers we've been looking at have a GVWR of 5000 lbs or less. Can we safely haul a trailer of this weight with a V6? Does anyone have suggestions on SUVs that have decent gas mileage that could tow 5000 lbs or less?
Thanks for any help.
First off, realize that towing a given TT with either V6 or V8 will probably yield about the same mpg. The gain comes when you aren't towing. The exception being when you go from gasser to turbo-diesel engine.
Engines and transmissions are usually matched in capability to a great degree. A V6 will have a lighter duty tranny than a V8, usually.
I towed extensively with a 2008 Toyota Highlander for both work and play. Towing a 17' Burro, a rounded-shape, molded fiberglass TT of 2200 lbs, was pretty easy through the Rockies. Towing a boxy 16'L x 7'W x 100"H TT of 2700 lbs made the HL work noticeably harder, but it still did ok. The HL had 270 HP and 240 ft-lbs torque. I could see a person towing perhaps 3500 lbs with a similar vehicle, and perhaps 4000 lbs if the towing was all in the flatlands or at low elevation. 5000 lbs would likely be a strain.
You also should be aware that a 5000 lb TT is likely to have a tongue weight, loaded for camping (LP, battery, water, gear) in the 650 lb to 750 lb range. An Explorer Sport with 3.5L Ecoboost would have the power, but you'd be overloading the hitch and the rear suspension. A Jeep Grand Cherokee or Dodge Durango with 5.7L V8 would be much better... but you're back to a V8. If Jeep is still offering its 3L diesel in the GC, that will give you the fuel economy boost you're looking for.
Another issue is the wheelbase and handling. Most SUVs have a short wheelbase... well, shorter than a pickup at least. The longer the TT, the more wheelbase you want for safe handling, although you can compensate to some degree by using an anti-sway hitch. For anything over 20' with an SUV, I'd say you definitely want the anti-sway hitch. My HL was stable with the 16'-17' trailers, but not sure how it would have felt with anything longer.
One last thing. Downsizing to save fuel only makes good economic sense if the old tug really needs to be replaced anyway. Otherwise, you're robbing Peter of thousands to pay Paul a few hundred bucks.
I hope that helps.